---
APC_amount: 3317,75 EUR
OA_place: publisher
OA_type: hybrid
_id: '19453'
abstract:
- lang: eng
  text: A key feature of biological and artificial neural networks is the progressive
    refinement of their neural representations with experience. In neuroscience, this
    fact has inspired several recent studies in sensory and motor systems. However,
    less is known about how higher associational cortical areas, such as the hippocampus,
    modify representations throughout the learning of complex tasks. Here, we focus
    on associative learning, a process that requires forming a connection between
    the representations of different variables for appropriate behavioral response.
    We trained rats in a space-context associative task and monitored hippocampal
    neural activity throughout the entire learning period, over several days. This
    allowed us to assess changes in the representations of context, movement direction,
    and position, as well as their relationship to behavior. We identified a hierarchical
    representational structure in the encoding of these three task variables that
    was preserved throughout learning. Nevertheless, we also observed changes at the
    lower levels of the hierarchy where context was encoded. These changes were local
    in neural activity space and restricted to physical positions where context identification
    was necessary for correct decision-making, supporting better context decoding
    and contextual code compression. Our results demonstrate that the hippocampal
    code not only accommodates hierarchical relationships between different variables
    but also enables efficient learning through minimal changes in neural activity
    space. Beyond the hippocampus, our work reveals a representation learning mechanism
    that might be implemented in other biological and artificial networks performing
    similar tasks.
acknowledgement: We would like to thank Rebecca Morse for performing the recordings
  in one of the animals under the supervision of H.S.C.C., Jago Wallenschus for the
  technical support, especially with maze design, Wiktor Mlynarski for the advice
  and discussions and Andrea Cumpelik for suggestions during the writing. M.N. was
  supported by the Howard Hughes Medical Institute. H.S.C.C. received funding from
  the European Union’s Horizon 2020 research and innovation programme under the Marie
  Skłodowska-Curie grant agreement No 665385.
article_number: e2417025122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Heloisa
  full_name: Chiossi, Heloisa
  id: 2BBA502C-F248-11E8-B48F-1D18A9856A87
  last_name: Chiossi
  orcid: 0009-0004-2973-278X
- first_name: Michele
  full_name: Nardin, Michele
  id: 30BD0376-F248-11E8-B48F-1D18A9856A87
  last_name: Nardin
  orcid: 0000-0001-8849-6570
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
- first_name: Jozsef L
  full_name: Csicsvari, Jozsef L
  id: 3FA14672-F248-11E8-B48F-1D18A9856A87
  last_name: Csicsvari
  orcid: 0000-0002-5193-4036
citation:
  ama: Chiossi HSC, Nardin M, Tkačik G, Csicsvari JL. Learning reshapes the hippocampal
    representation hierarchy. <i>Proceedings of the National Academy of Sciences</i>.
    2025;122(11). doi:<a href="https://doi.org/10.1073/pnas.2417025122">10.1073/pnas.2417025122</a>
  apa: Chiossi, H. S. C., Nardin, M., Tkačik, G., &#38; Csicsvari, J. L. (2025). Learning
    reshapes the hippocampal representation hierarchy. <i>Proceedings of the National
    Academy of Sciences</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2417025122">https://doi.org/10.1073/pnas.2417025122</a>
  chicago: Chiossi, Heloisa S. C., Michele Nardin, Gašper Tkačik, and Jozsef L Csicsvari.
    “Learning Reshapes the Hippocampal Representation Hierarchy.” <i>Proceedings of
    the National Academy of Sciences</i>. National Academy of Sciences, 2025. <a href="https://doi.org/10.1073/pnas.2417025122">https://doi.org/10.1073/pnas.2417025122</a>.
  ieee: H. S. C. Chiossi, M. Nardin, G. Tkačik, and J. L. Csicsvari, “Learning reshapes
    the hippocampal representation hierarchy,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 122, no. 11. National Academy of Sciences, 2025.
  ista: Chiossi HSC, Nardin M, Tkačik G, Csicsvari JL. 2025. Learning reshapes the
    hippocampal representation hierarchy. Proceedings of the National Academy of Sciences.
    122(11), e2417025122.
  mla: Chiossi, Heloisa S. C., et al. “Learning Reshapes the Hippocampal Representation
    Hierarchy.” <i>Proceedings of the National Academy of Sciences</i>, vol. 122,
    no. 11, e2417025122, National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2417025122">10.1073/pnas.2417025122</a>.
  short: H.S.C. Chiossi, M. Nardin, G. Tkačik, J.L. Csicsvari, Proceedings of the
    National Academy of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-03-25T07:38:35Z
date_published: 2025-03-10T00:00:00Z
date_updated: 2026-05-06T13:12:01Z
day: '10'
ddc:
- '570'
department:
- _id: GaTk
- _id: JoCs
doi: 10.1073/pnas.2417025122
ec_funded: 1
external_id:
  isi:
  - '001459499500001'
  pmid:
  - '40063792'
file:
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  content_type: application/pdf
  creator: dernst
  date_created: 2025-03-25T07:49:04Z
  date_updated: 2025-03-25T07:49:04Z
  file_id: '19454'
  file_name: 2025_PNAS_Chiossi.pdf
  file_size: 1553502
  relation: main_file
  success: 1
file_date_updated: 2025-03-25T07:49:04Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '11'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/hchiossi/hpc-hierarchy
  record:
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    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Learning reshapes the hippocampal representation hierarchy
tmp:
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  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19499'
abstract:
- lang: eng
  text: Quantum hardware is inherently fragile and noisy. We find that the accuracy
    of traditional quantum error correction algorithms can be improved depending on
    the hardware. Given different hardware specifications, we automatically synthesize
    hardware-optimal algorithms for parity correction, qubit resetting, and GHZ (Greenberger–Horne–Zeilinger)
    state preparation. Using stochastic techniques from computer science, our method
    presents a computational tool to compute exact accuracy guarantees and synthesize
    optimal algorithms that are often different from traditional ones. We also show
    that improvements can be gained with respect to the Qiskit transpiler as we compute
    the hardware-optimal qubit mapping for the GHZ state-preparation problem.
acknowledgement: We thank the reviewers. In particular, they inspired us to analyze
  the reset and state-preparation problems, to compute optimal qubit mappings, and
  to apply our method to a quantum error correction scheme that includes both bitflip
  and phaseflip corrections. We also thank Raimundo Saona and Marek Chalupa for their
  time spent in insightful discussions. This research was partially supported by the
  European Research Council CoG 863818 (ForM-SMArt) grant.
article_number: e2419273122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Stefanie
  full_name: Muroya Lei, Stefanie
  id: a376de31-8972-11ed-ae7b-d0251c13c8ff
  last_name: Muroya Lei
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000-0002-2985-7724
citation:
  ama: Muroya Lei S, Chatterjee K, Henzinger TA. Hardware-optimal quantum algorithms.
    <i>Proceedings of the National Academy of Sciences</i>. 2025;122(12). doi:<a href="https://doi.org/10.1073/pnas.2419273122">10.1073/pnas.2419273122</a>
  apa: Muroya Lei, S., Chatterjee, K., &#38; Henzinger, T. A. (2025). Hardware-optimal
    quantum algorithms. <i>Proceedings of the National Academy of Sciences</i>. National
    Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2419273122">https://doi.org/10.1073/pnas.2419273122</a>
  chicago: Muroya Lei, Stefanie, Krishnendu Chatterjee, and Thomas A Henzinger. “Hardware-Optimal
    Quantum Algorithms.” <i>Proceedings of the National Academy of Sciences</i>. National
    Academy of Sciences, 2025. <a href="https://doi.org/10.1073/pnas.2419273122">https://doi.org/10.1073/pnas.2419273122</a>.
  ieee: S. Muroya Lei, K. Chatterjee, and T. A. Henzinger, “Hardware-optimal quantum
    algorithms,” <i>Proceedings of the National Academy of Sciences</i>, vol. 122,
    no. 12. National Academy of Sciences, 2025.
  ista: Muroya Lei S, Chatterjee K, Henzinger TA. 2025. Hardware-optimal quantum algorithms.
    Proceedings of the National Academy of Sciences. 122(12), e2419273122.
  mla: Muroya Lei, Stefanie, et al. “Hardware-Optimal Quantum Algorithms.” <i>Proceedings
    of the National Academy of Sciences</i>, vol. 122, no. 12, e2419273122, National
    Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2419273122">10.1073/pnas.2419273122</a>.
  short: S. Muroya Lei, K. Chatterjee, T.A. Henzinger, Proceedings of the National
    Academy of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-04-06T22:01:32Z
date_published: 2025-03-25T00:00:00Z
date_updated: 2026-04-28T13:41:14Z
day: '25'
ddc:
- '000'
department:
- _id: KrCh
- _id: ToHe
doi: 10.1073/pnas.2419273122
ec_funded: 1
external_id:
  isi:
  - '001459435600001'
  pmid:
  - '40106357'
file:
- access_level: open_access
  checksum: 83501b8a65ee5fdd3f5604fc28eddc22
  content_type: application/pdf
  creator: dernst
  date_created: 2025-04-07T11:42:22Z
  date_updated: 2025-04-07T11:42:22Z
  file_id: '19524'
  file_name: 2025_PNAS_Muroya.pdf
  file_size: 6805668
  relation: main_file
  success: 1
file_date_updated: 2025-04-07T11:42:22Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '12'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/smml1996/algorithm_synthesis
  - description: News on ISTA website
    relation: press_release
    url: https://ista.ac.at/en/news/hardware-optimal-quantum-algorithms/
scopus_import: '1'
status: public
title: Hardware-optimal quantum algorithms
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 122
year: '2025'
...
---
APC_amount: 5949 EUR
OA_place: publisher
OA_type: hybrid
_id: '19626'
abstract:
- lang: eng
  text: Active regulation of gene expression, orchestrated by complex interactions
    of activators and repressors at promoters, controls the fate of organisms. In
    contrast, basal expression at uninduced promoters is considered to be a dynamically
    inert mode of nonfunctional “promoter leakiness,” merely a byproduct of transcriptional
    regulation. Here, we investigate the basal expression mode of the mar operon,
    the main regulator of intrinsic multiple antibiotic resistance in Escherichia
    coli, and link its dynamic properties to the noncanonical, yet highly conserved
    start codon of marR across Enterobacteriaceae. Real-time, single-cell measurements
    across tens of generations reveal that basal expression consists of rare stochastic
    gene expression pulses, which maximize variability in wildtype and, surprisingly,
    transiently accelerate cellular elongation rates. Competition experiments show
    that basal expression confers fitness advantages to wildtype across several transitions
    between exponential and stationary growth by shortening lag times. The dynamically
    rich basal expression of the mar operon has likely been evolutionarily maintained
    for its role in growth homeostasis of Enterobacteria within the gut environment,
    thereby allowing other ancillary gene regulatory roles to evolve, e.g., control
    of costly-to-induce multidrug efflux pumps. Understanding the complex selection
    forces governing genetic systems involved in intrinsic multidrug resistance is
    crucial for effective public health measures.
acknowledged_ssus:
- _id: Bio
acknowledgement: K.J. thanks B. Wu, I. Tomanek, K. Tomasek for detailed discussions
  on the manuscript, all other members from the Guet laboratory for valuable feedback,
  R. Chait, & Imaging and Optics Facility, Institute of Science and Technology Austria
  for helping with microscopy, Dr. Sudha Rao and Dr. Raja Mugasimangalam, Genotypic
  Technology India for allowing time off to address the revisions. K.J. acknowledges
  Institute of Science and Technology fellowship IC1006FELL02, R.H. was supported
  in part by Chan Zuckerberg Initiative and Donor Advised-Fund grant 2020-225401 (https://doi.org/10.37921/120055ratwvi),
  O.O.B. acknowledges Fonds Zur Förderung der Wissenschaftlichen Forschung (FWF) Grant
  ESP253-B, R.R. acknowledges FWF Grant 10.55776/ESP219, C.C.G. acknowledges FWF I5127-B.
article_number: e2413709122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Kirti
  full_name: Jain, Kirti
  id: 330F0278-F248-11E8-B48F-1D18A9856A87
  last_name: Jain
  orcid: 0000-0002-3809-0449
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Olga
  full_name: Bochkareva, Olga
  id: C4558D3C-6102-11E9-A62E-F418E6697425
  last_name: Bochkareva
  orcid: 0000-0003-1006-6639
- first_name: Roderich
  full_name: Römhild, Roderich
  id: 68E56E44-62B0-11EA-B963-444F3DDC885E
  last_name: Römhild
  orcid: 0000-0001-9480-5261
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
- first_name: Calin C
  full_name: Guet, Calin C
  id: 47F8433E-F248-11E8-B48F-1D18A9856A87
  last_name: Guet
  orcid: 0000-0001-6220-2052
citation:
  ama: Jain K, Hauschild R, Bochkareva O, Römhild R, Tkačik G, Guet CC. Pulsatile
    basal gene expression as a fitness determinant in bacteria. <i>Proceedings of
    the National Academy of Sciences</i>. 2025;122(15). doi:<a href="https://doi.org/10.1073/pnas.2413709122">10.1073/pnas.2413709122</a>
  apa: Jain, K., Hauschild, R., Bochkareva, O., Römhild, R., Tkačik, G., &#38; Guet,
    C. C. (2025). Pulsatile basal gene expression as a fitness determinant in bacteria.
    <i>Proceedings of the National Academy of Sciences</i>. National Academy of Sciences.
    <a href="https://doi.org/10.1073/pnas.2413709122">https://doi.org/10.1073/pnas.2413709122</a>
  chicago: Jain, Kirti, Robert Hauschild, Olga Bochkareva, Roderich Römhild, Gašper
    Tkačik, and Calin C Guet. “Pulsatile Basal Gene Expression as a Fitness Determinant
    in Bacteria.” <i>Proceedings of the National Academy of Sciences</i>. National
    Academy of Sciences, 2025. <a href="https://doi.org/10.1073/pnas.2413709122">https://doi.org/10.1073/pnas.2413709122</a>.
  ieee: K. Jain, R. Hauschild, O. Bochkareva, R. Römhild, G. Tkačik, and C. C. Guet,
    “Pulsatile basal gene expression as a fitness determinant in bacteria,” <i>Proceedings
    of the National Academy of Sciences</i>, vol. 122, no. 15. National Academy of
    Sciences, 2025.
  ista: Jain K, Hauschild R, Bochkareva O, Römhild R, Tkačik G, Guet CC. 2025. Pulsatile
    basal gene expression as a fitness determinant in bacteria. Proceedings of the
    National Academy of Sciences. 122(15), e2413709122.
  mla: Jain, Kirti, et al. “Pulsatile Basal Gene Expression as a Fitness Determinant
    in Bacteria.” <i>Proceedings of the National Academy of Sciences</i>, vol. 122,
    no. 15, e2413709122, National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2413709122">10.1073/pnas.2413709122</a>.
  short: K. Jain, R. Hauschild, O. Bochkareva, R. Römhild, G. Tkačik, C.C. Guet, Proceedings
    of the National Academy of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-04-27T22:02:13Z
date_published: 2025-04-15T00:00:00Z
date_updated: 2026-05-20T08:33:08Z
day: '15'
ddc:
- '570'
department:
- _id: CaGu
- _id: Bio
- _id: FyKo
- _id: GaTk
doi: 10.1073/pnas.2413709122
external_id:
  isi:
  - '001471235200001'
  pmid:
  - '40193613'
file:
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  checksum: 115a687f40009660eb4b38b4f6559d41
  content_type: application/pdf
  creator: dernst
  date_created: 2025-06-24T07:27:43Z
  date_updated: 2025-06-24T07:27:43Z
  file_id: '19888'
  file_name: 2025_PNAS_Jain.pdf
  file_size: 2949523
  relation: main_file
  success: 1
file_date_updated: 2025-06-24T07:27:43Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '15'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: c08e9ad1-5a5b-11eb-8a69-9d1cf3b07473
  grant_number: CZI01
  name: Tools for automation and feedback microscopy
- _id: bd6f94d1-d553-11ed-ba76-ae9f07250f74
  grant_number: E219
  name: Non-canonical antibiotic interactions
- _id: 34e076d6-11ca-11ed-8bc3-aec76c41a181
  grant_number: I05127
  name: Evolutionary analysis of gene regulation
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - description: News on ISTA website
    relation: press_release
    url: https://ista.ac.at/en/news/clockwork-just-for-antibiotic-resistance/
  record:
  - id: '19294'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Pulsatile basal gene expression as a fitness determinant in bacteria
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
APC_amount: 2754,32 EUR
OA_place: publisher
OA_type: hybrid
_id: '19627'
abstract:
- lang: eng
  text: Differentially private gradient descent (DP-GD) is a popular algorithm to
    train deep learning models with provable guarantees on the privacy of the training
    data. In the last decade, the problem of understanding its performance cost with
    respect to standard GD has received remarkable attention from the research community,
    which formally derived upper bounds on the excess population risk  RP  in different
    learning settings. However, existing bounds typically degrade with over-parameterization,
    i.e., as the number of parameters  p  gets larger than the number of training
    samples  n  -- a regime which is ubiquitous in current deep-learning practice.
    As a result, the lack of theoretical insights leaves practitioners without clear
    guidance, leading some to reduce the effective number of trainable parameters
    to improve performance, while others use larger models to achieve better results
    through scale. In this work, we show that in the popular random features model
    with quadratic loss, for any sufficiently large  p , privacy can be obtained for
    free, i.e.,  |RP|=o(1) , not only when the privacy parameter  ε  has constant
    order, but also in the strongly private setting  ε=o(1) . This challenges the
    common wisdom that over-parameterization inherently hinders performance in private
    learning.
acknowledgement: This research was funded in whole, or in part, by the Austrian Science
  Fund (FWF) Grant number COE 12. For the purpose of open access, the author has applied
  a CC BY public copyright license to any Author Accepted Manuscript version arising
  from this submission. The authors were also supported by the 2019 Lopez-Loreta prize,
  and Simone Bombari was supported by a Google PhD fellowship. We thank Diyuan Wu,
  Edwige Cyffers, Francesco Pedrotti, Inbar Seroussi, Nikita P. Kalinin, Pietro Pelliconi,
  Roodabeh Safavi, Yizhe Zhu, and Zhichao Wang for helpful discussions.
article_number: e2423072122
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Simone
  full_name: Bombari, Simone
  id: ca726dda-de17-11ea-bc14-f9da834f63aa
  last_name: Bombari
- first_name: Marco
  full_name: Mondelli, Marco
  id: 27EB676C-8706-11E9-9510-7717E6697425
  last_name: Mondelli
  orcid: 0000-0002-3242-7020
citation:
  ama: Bombari S, Mondelli M. Privacy for free in the overparameterized regime. <i>Proceedings
    of the National Academy of Sciences</i>. 2025;122(15). doi:<a href="https://doi.org/10.1073/pnas.2423072122">10.1073/pnas.2423072122</a>
  apa: Bombari, S., &#38; Mondelli, M. (2025). Privacy for free in the overparameterized
    regime. <i>Proceedings of the National Academy of Sciences</i>. National Academy
    of Sciences. <a href="https://doi.org/10.1073/pnas.2423072122">https://doi.org/10.1073/pnas.2423072122</a>
  chicago: Bombari, Simone, and Marco Mondelli. “Privacy for Free in the Overparameterized
    Regime.” <i>Proceedings of the National Academy of Sciences</i>. National Academy
    of Sciences, 2025. <a href="https://doi.org/10.1073/pnas.2423072122">https://doi.org/10.1073/pnas.2423072122</a>.
  ieee: S. Bombari and M. Mondelli, “Privacy for free in the overparameterized regime,”
    <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no. 15. National
    Academy of Sciences, 2025.
  ista: Bombari S, Mondelli M. 2025. Privacy for free in the overparameterized regime.
    Proceedings of the National Academy of Sciences. 122(15), e2423072122.
  mla: Bombari, Simone, and Marco Mondelli. “Privacy for Free in the Overparameterized
    Regime.” <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no.
    15, e2423072122, National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2423072122">10.1073/pnas.2423072122</a>.
  short: S. Bombari, M. Mondelli, Proceedings of the National Academy of Sciences
    122 (2025).
corr_author: '1'
date_created: 2025-04-27T22:02:13Z
date_published: 2025-04-15T00:00:00Z
date_updated: 2026-05-20T08:23:19Z
day: '15'
ddc:
- '000'
department:
- _id: MaMo
doi: 10.1073/pnas.2423072122
external_id:
  arxiv:
  - '2410.14787'
  isi:
  - '001471214000001'
  pmid:
  - '40215275'
file:
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  date_created: 2025-05-05T07:27:54Z
  date_updated: 2025-05-05T07:27:54Z
  file_id: '19648'
  file_name: 2025_PNAS_Bombari.pdf
  file_size: 2328320
  relation: main_file
  success: 1
file_date_updated: 2025-05-05T07:27:54Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '15'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 059876FA-7A3F-11EA-A408-12923DDC885E
  name: Prix Lopez-Loretta 2019 - Marco Mondelli
- _id: 92099302-16d5-11f0-9cad-f9a785f54fbd
  name: 'Trustworthy Deep Learning Theory: Private Over-Parameterized Models and Robust
    LLMs'
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Privacy for free in the overparameterized regime
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19965'
abstract:
- lang: eng
  text: Multiagent learning is challenging when agents face mixed-motivation interactions,
    where conflicts of interest arise as agents independently try to optimize their
    respective outcomes. Recent advancements in evolutionary game theory have identified
    a class of “zero-determinant” strategies, which confer an agent with significant
    unilateral control over outcomes in repeated games. Building on these insights,
    we present a comprehensive generalization of zero-determinant strategies to stochastic
    games, encompassing dynamic environments. We propose an algorithm that allows
    an agent to discover strategies enforcing predetermined linear (or approximately
    linear) payoff relationships. Of particular interest is the relationship in which
    both payoffs are equal, which serves as a proxy for fairness in symmetric games.
    We demonstrate that an agent can discover strategies enforcing such relationships
    through experience alone, without coordinating with an opponent. In finding and
    using such a strategy, an agent (“enforcer”) can incentivize optimal and equitable
    outcomes, circumventing potential exploitation. In particular, from the opponent’s
    viewpoint, the enforcer transforms a mixed-motivation problem into a cooperative
    problem, paving the way for more collaboration and fairness in multiagent systems.
acknowledgement: 'We gratefully acknowledge the support from the European Research
  Council (Starting Grant 850529: E-DIRECT) and the Max Planck Society (C.H.), the
  European Research Council (Consolidator Grant 863818: ForM-SMArt) (K.C.), the Shanghai
  Pujiang Program (No. 23PJ1405500) (Q.S.), the Army Research Office (Grant No. W911NF-18-1-0325)
  (N.E.L.), and the John Templeton Foundation (Grant No. 62281) (J.B.P.).'
article_number: e2319927121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Alex
  full_name: Mcavoy, Alex
  last_name: Mcavoy
- first_name: Udari Madhushani
  full_name: Sehwag, Udari Madhushani
  last_name: Sehwag
- first_name: Christian
  full_name: Hilbe, Christian
  id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87
  last_name: Hilbe
  orcid: 0000-0001-5116-955X
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Wolfram
  full_name: Barfuss, Wolfram
  last_name: Barfuss
- first_name: Qi
  full_name: Su, Qi
  last_name: Su
- first_name: Naomi Ehrich
  full_name: Leonard, Naomi Ehrich
  last_name: Leonard
- first_name: Joshua B.
  full_name: Plotkin, Joshua B.
  last_name: Plotkin
citation:
  ama: Mcavoy A, Sehwag UM, Hilbe C, et al. Unilateral incentive alignment in two-agent
    stochastic games. <i>Proceedings of the National Academy of Sciences</i>. 2025;122(25).
    doi:<a href="https://doi.org/10.1073/pnas.2319927121">10.1073/pnas.2319927121</a>
  apa: Mcavoy, A., Sehwag, U. M., Hilbe, C., Chatterjee, K., Barfuss, W., Su, Q.,
    … Plotkin, J. B. (2025). Unilateral incentive alignment in two-agent stochastic
    games. <i>Proceedings of the National Academy of Sciences</i>. National Academy
    of Sciences. <a href="https://doi.org/10.1073/pnas.2319927121">https://doi.org/10.1073/pnas.2319927121</a>
  chicago: Mcavoy, Alex, Udari Madhushani Sehwag, Christian Hilbe, Krishnendu Chatterjee,
    Wolfram Barfuss, Qi Su, Naomi Ehrich Leonard, and Joshua B. Plotkin. “Unilateral
    Incentive Alignment in Two-Agent Stochastic Games.” <i>Proceedings of the National
    Academy of Sciences</i>. National Academy of Sciences, 2025. <a href="https://doi.org/10.1073/pnas.2319927121">https://doi.org/10.1073/pnas.2319927121</a>.
  ieee: A. Mcavoy <i>et al.</i>, “Unilateral incentive alignment in two-agent stochastic
    games,” <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no.
    25. National Academy of Sciences, 2025.
  ista: Mcavoy A, Sehwag UM, Hilbe C, Chatterjee K, Barfuss W, Su Q, Leonard NE, Plotkin
    JB. 2025. Unilateral incentive alignment in two-agent stochastic games. Proceedings
    of the National Academy of Sciences. 122(25), e2319927121.
  mla: Mcavoy, Alex, et al. “Unilateral Incentive Alignment in Two-Agent Stochastic
    Games.” <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no.
    25, e2319927121, National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2319927121">10.1073/pnas.2319927121</a>.
  short: A. Mcavoy, U.M. Sehwag, C. Hilbe, K. Chatterjee, W. Barfuss, Q. Su, N.E.
    Leonard, J.B. Plotkin, Proceedings of the National Academy of Sciences 122 (2025).
date_created: 2025-07-06T22:01:23Z
date_published: 2025-06-24T00:00:00Z
date_updated: 2025-09-30T13:47:14Z
day: '24'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1073/pnas.2319927121
ec_funded: 1
external_id:
  isi:
  - '001522351900001'
  pmid:
  - '40523172'
file:
- access_level: open_access
  checksum: 3b35befd959a3e37aa9080a64a6afaf3
  content_type: application/pdf
  creator: dernst
  date_created: 2025-07-08T05:52:26Z
  date_updated: 2025-07-08T05:52:26Z
  file_id: '19972'
  file_name: 2025_PNAS_McAvoy.pdf
  file_size: 29525932
  relation: main_file
  success: 1
file_date_updated: 2025-07-08T05:52:26Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '25'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Unilateral incentive alignment in two-agent stochastic games
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 122
year: '2025'
...
---
APC_amount: 5766,07 EUR
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20289'
abstract:
- lang: eng
  text: Cell and tissue movement in development, cancer invasion, and immune response
    relies on chemical or mechanical guidance cues. In many systems, this behavior
    is locally directed by self-generated signaling gradients rather than long-range,
    prepatterned cues. However, how heterogeneous mixtures of cells interact nonreciprocally
    and navigate through self-generated gradients remains largely unexplored. Here,
    we introduce a theoretical framework for the self-organized chemotaxis of heterogeneous
    cell populations. We find that the relative chemotactic sensitivities of different
    cell populations control their long-time coupling and comigration dynamics, with
    boundary conditions such as external cell and attractant reservoirs substantially
    influencing the migration patterns. Our model predicts an optimal parameter regime
    that enables robust and colocalized migration. We test our theoretical predictions
    with in vitro experiments demonstrating the comigration of distinct immune cell
    populations, and quantitatively reproduce observed migration patterns under wild-type
    and perturbed conditions. Interestingly, immune cell comigration occurs close
    to the predicted optimal regime. Finally, we incorporate mechanical interactions
    into our framework, revealing a nontrivial interplay between chemotactic and mechanical
    nonreciprocity in driving collective migration. Together, our findings suggest
    that self-generated chemotaxis is a robust strategy for the navigation of mixed
    cell populations.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
- _id: LifeSc
- _id: NanoFab
acknowledgement: We thank all members of the M.S. and E.H. groups for stimulating
  discussions.We thank the Imaging and Optics facility, the Pre-clinical and Lab Support
  facility of the Institute of Science and Technology Austria for their excellent
  support and provided resources for the experimental research. In particular, we
  thank Jack Merrin from the Nanofabrication facility who generated the microfabricated
  channel used in this study. This work received funding fromt he European Research
  Council under the European Union’s Horizon 2020 research and innovation program
  (grant agreement No. 851288 to E.H.). M.C.U.is funded by a University of Shefﬁeld
  Strategic Research Fellowship in the Physics of Life and Quantitative Biology.
article_number: e2504064122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Mehmet C
  full_name: Ucar, Mehmet C
  id: 50B2A802-6007-11E9-A42B-EB23E6697425
  last_name: Ucar
  orcid: 0000-0003-0506-4217
- first_name: Alsberga
  full_name: Zane, Alsberga
  id: 60f7509a-f652-11ea-9d86-b963d6490d7c
  last_name: Zane
  orcid: 0009-0003-0415-7603
- first_name: Jonna H
  full_name: Alanko, Jonna H
  id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
  last_name: Alanko
  orcid: 0000-0002-7698-3061
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
- first_name: Edouard B
  full_name: Hannezo, Edouard B
  id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
  last_name: Hannezo
  orcid: 0000-0001-6005-1561
citation:
  ama: Ucar MC, Zane A, Alanko JH, Sixt MK, Hannezo EB. Self-generated chemotaxis
    of mixed cell populations. <i>Proceedings of the National Academy of Sciences</i>.
    2025;122(34). doi:<a href="https://doi.org/10.1073/pnas.2504064122">10.1073/pnas.2504064122</a>
  apa: Ucar, M. C., Zane, A., Alanko, J. H., Sixt, M. K., &#38; Hannezo, E. B. (2025).
    Self-generated chemotaxis of mixed cell populations. <i>Proceedings of the National
    Academy of Sciences</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2504064122">https://doi.org/10.1073/pnas.2504064122</a>
  chicago: Ucar, Mehmet C, Alsberga Zane, Jonna H Alanko, Michael K Sixt, and Edouard
    B Hannezo. “Self-Generated Chemotaxis of Mixed Cell Populations.” <i>Proceedings
    of the National Academy of Sciences</i>. National Academy of Sciences, 2025. <a
    href="https://doi.org/10.1073/pnas.2504064122">https://doi.org/10.1073/pnas.2504064122</a>.
  ieee: M. C. Ucar, A. Zane, J. H. Alanko, M. K. Sixt, and E. B. Hannezo, “Self-generated
    chemotaxis of mixed cell populations,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 122, no. 34. National Academy of Sciences, 2025.
  ista: Ucar MC, Zane A, Alanko JH, Sixt MK, Hannezo EB. 2025. Self-generated chemotaxis
    of mixed cell populations. Proceedings of the National Academy of Sciences. 122(34),
    e2504064122.
  mla: Ucar, Mehmet C., et al. “Self-Generated Chemotaxis of Mixed Cell Populations.”
    <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no. 34, e2504064122,
    National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2504064122">10.1073/pnas.2504064122</a>.
  short: M.C. Ucar, A. Zane, J.H. Alanko, M.K. Sixt, E.B. Hannezo, Proceedings of
    the National Academy of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-09-07T22:01:32Z
date_published: 2025-08-26T00:00:00Z
date_updated: 2026-05-20T08:59:54Z
day: '26'
ddc:
- '570'
department:
- _id: EdHa
- _id: MiSi
doi: 10.1073/pnas.2504064122
ec_funded: 1
external_id:
  isi:
  - '001562181600001'
  pmid:
  - '40838890'
file:
- access_level: open_access
  checksum: b36abd92673b6d76376fc9434bad52cc
  content_type: application/pdf
  creator: dernst
  date_created: 2025-09-08T07:23:29Z
  date_updated: 2025-09-08T07:23:29Z
  file_id: '20307'
  file_name: 2025_PNAS_Ucar.pdf
  file_size: 16069140
  relation: main_file
  success: 1
file_date_updated: 2025-09-08T07:23:29Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '34'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 05943252-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '851288'
  name: Design Principles of Branching Morphogenesis
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/mehmetcanucar/Self-generated-chemotaxis
scopus_import: '1'
status: public
title: Self-generated chemotaxis of mixed cell populations
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '18849'
abstract:
- lang: eng
  text: Many biological systems operate near the physical limits to their performance,
    suggesting that aspects of their behavior and underlying mechanisms could be derived
    from optimization principles. However, such principles have often been applied
    only in simplified models. Here, we explore a detailed mechanistic model of the
    gap gene network in the Drosophila embryo, optimizing its 50+ parameters to maximize
    the information that gene expression levels provide about nuclear positions. This
    optimization is conducted under realistic constraints, such as limits on the number
    of available molecules. Remarkably, the optimal networks we derive closely match
    the architecture and spatial gene expression profiles observed in the real organism.
    Our framework quantifies the tradeoffs involved in maximizing functional performance
    and allows for the exploration of alternative network configurations, addressing
    the question of which features are necessary and which are contingent. Our results
    suggest that multiple solutions to the optimization problem might exist across
    closely related organisms, offering insights into the evolution of gene regulatory
    networks.
acknowledgement: We thank Nicholas H. Barton for his comments on the manuscript, Benjamin
  Zoller for helpful discussions, and Aleksandra Walczak and Curtis Callan for early
  collaborations that shaped this work. Special thanks to Eric F. Wieschaus for many
  persistently inspiring conversations. This work was supported in part by the Human
  Frontiers Science Program; the Austrian Science Fund (FWF P28844); by the European
  Research Council grant DynaTrans (101118866); by U.S. NSF, through the Center for
  the Physics of Biological Function (PHY–1734030); by NIH Grants R01GM097275, U01DA047730,
  and U01DK127429; by the John Simon Guggenheim Memorial Foundation; and by the LOEWE
  priority program “Center for Multiscale Modeling in Life Sciences” (CMMS), sponsored
  by the Hessian Ministry for Science and Research, Arts and Culture (HMWK).
article_number: e2402925121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Thomas R
  full_name: Sokolowski, Thomas R
  id: 3E999752-F248-11E8-B48F-1D18A9856A87
  last_name: Sokolowski
  orcid: 0000-0002-1287-3779
- first_name: Thomas
  full_name: Gregor, Thomas
  last_name: Gregor
- first_name: William
  full_name: Bialek, William
  last_name: Bialek
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
citation:
  ama: Sokolowski TR, Gregor T, Bialek W, Tkačik G. Deriving a genetic regulatory
    network from an optimization principle. <i>Proceedings of the National Academy
    of Sciences</i>. 2025;122(1). doi:<a href="https://doi.org/10.1073/pnas.2402925121">10.1073/pnas.2402925121</a>
  apa: Sokolowski, T. R., Gregor, T., Bialek, W., &#38; Tkačik, G. (2025). Deriving
    a genetic regulatory network from an optimization principle. <i>Proceedings of
    the National Academy of Sciences</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2402925121">https://doi.org/10.1073/pnas.2402925121</a>
  chicago: Sokolowski, Thomas R, Thomas Gregor, William Bialek, and Gašper Tkačik.
    “Deriving a Genetic Regulatory Network from an Optimization Principle.” <i>Proceedings
    of the National Academy of Sciences</i>. National Academy of Sciences, 2025. <a
    href="https://doi.org/10.1073/pnas.2402925121">https://doi.org/10.1073/pnas.2402925121</a>.
  ieee: T. R. Sokolowski, T. Gregor, W. Bialek, and G. Tkačik, “Deriving a genetic
    regulatory network from an optimization principle,” <i>Proceedings of the National
    Academy of Sciences</i>, vol. 122, no. 1. National Academy of Sciences, 2025.
  ista: Sokolowski TR, Gregor T, Bialek W, Tkačik G. 2025. Deriving a genetic regulatory
    network from an optimization principle. Proceedings of the National Academy of
    Sciences. 122(1), e2402925121.
  mla: Sokolowski, Thomas R., et al. “Deriving a Genetic Regulatory Network from an
    Optimization Principle.” <i>Proceedings of the National Academy of Sciences</i>,
    vol. 122, no. 1, e2402925121, National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2402925121">10.1073/pnas.2402925121</a>.
  short: T.R. Sokolowski, T. Gregor, W. Bialek, G. Tkačik, Proceedings of the National
    Academy of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-01-19T23:01:50Z
date_published: 2025-01-07T00:00:00Z
date_updated: 2026-02-16T12:26:51Z
day: '07'
ddc:
- '570'
department:
- _id: GaTk
doi: 10.1073/pnas.2402925121
external_id:
  isi:
  - '001392772400001'
  pmid:
  - '39752518'
file:
- access_level: open_access
  checksum: 8dbfc7d495413340225ebfae69b0cf9a
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-20T10:10:04Z
  date_updated: 2025-01-20T10:10:04Z
  file_id: '18862'
  file_name: 2025_PNAS_Sokolowski.pdf
  file_size: 19073585
  relation: main_file
  success: 1
file_date_updated: 2025-01-20T10:10:04Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 254E9036-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P28844-B27
  name: Biophysics of information processing in gene regulation
- _id: 7bfe6a29-9f16-11ee-852c-c0da5e2045d9
  grant_number: '101118866'
  name: 'Transcription in 4D: the dynamic interplay between chromatin architecture
    and gene expression in developing pseudo-embryos'
- _id: 2665AAFE-B435-11E9-9278-68D0E5697425
  grant_number: RGP0034/2018
  name: Can evolution minimize spurious signaling crosstalk to reach optimal performance?
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Deriving a genetic regulatory network from an optimization principle
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
APC_amount: 3261,23 EUR
OA_place: publisher
OA_type: hybrid
_id: '18850'
abstract:
- lang: eng
  text: 'Biophysical constraints limit the specificity with which transcription factors
    (TFs) can target regulatory DNA. While individual nontarget binding events may
    be low affinity, the sheer number of such interactions could present a challenge
    for gene regulation by degrading its precision or possibly leading to an erroneous
    induction state. Chromatin can prevent nontarget binding by rendering DNA physically
    inaccessible to TFs, at the cost of energy-consuming remodeling orchestrated by
    pioneer factors (PFs). Under what conditions and by how much can chromatin reduce
    regulatory errors on a global scale? We use a theoretical approach to compare
    two scenarios for gene regulation: one that relies on TF binding to free DNA alone
    and one that uses a combination of TFs and chromatin-regulating PFs to achieve
    desired gene expression patterns. We find, first, that chromatin effectively silences
    groups of genes that should be simultaneously OFF, thereby allowing more accurate
    graded control of expression for the remaining ON genes. Second, chromatin buffers
    the deleterious consequences of nontarget binding as the number of OFF genes grows,
    permitting a substantial expansion in regulatory complexity. Third, chromatin-based
    regulation productively co-opts nontarget TF binding for ON genes in order to
    establish a “leaky” baseline expression level, which targeted activator or repressor
    binding subsequently up- or down-modulates. Thus, on a global scale, using chromatin
    simultaneously alleviates pressure for high specificity of regulatory interactions
    and enables an increase in genome size with minimal impact on global expression
    error.'
acknowledgement: M.L.P. was supported by the European Molecular Biology Laboratory
  (EMBL) Interdisciplinary Postdoc Programme (EIPOD4 fellowships), cofunded by Marie
  SkÅ‚odowska-Curie Actions (Grant Agreement No. 847543). J.C. and M.L.P. were supported
  by EMBL Core Funding and Theory@EMBL. This work is supported by European Research
  Council Grant DynaTrans (101118866) to G.T. We would like to thank the members of
  the J.C. and G.T. groups, especially Natalia Misunou, Michal Hledík, and Réka Borbély,
  for helpful feedback and discussion. We also thank EMBL IT Services for the use
  of high performance computing resources.
article_number: e2411887121
article_processing_charge: No
article_type: original
author:
- first_name: Mindy Liu
  full_name: Perkins, Mindy Liu
  last_name: Perkins
- first_name: Justin
  full_name: Crocker, Justin
  last_name: Crocker
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
citation:
  ama: Perkins ML, Crocker J, Tkačik G. Chromatin enables precise and scalable gene
    regulation with factors of limited specificity. <i>Proceedings of the National
    Academy of Sciences</i>. 2025;122(1). doi:<a href="https://doi.org/10.1073/pnas.2411887121">10.1073/pnas.2411887121</a>
  apa: Perkins, M. L., Crocker, J., &#38; Tkačik, G. (2025). Chromatin enables precise
    and scalable gene regulation with factors of limited specificity. <i>Proceedings
    of the National Academy of Sciences</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2411887121">https://doi.org/10.1073/pnas.2411887121</a>
  chicago: Perkins, Mindy Liu, Justin Crocker, and Gašper Tkačik. “Chromatin Enables
    Precise and Scalable Gene Regulation with Factors of Limited Specificity.” <i>Proceedings
    of the National Academy of Sciences</i>. National Academy of Sciences, 2025. <a
    href="https://doi.org/10.1073/pnas.2411887121">https://doi.org/10.1073/pnas.2411887121</a>.
  ieee: M. L. Perkins, J. Crocker, and G. Tkačik, “Chromatin enables precise and scalable
    gene regulation with factors of limited specificity,” <i>Proceedings of the National
    Academy of Sciences</i>, vol. 122, no. 1. National Academy of Sciences, 2025.
  ista: Perkins ML, Crocker J, Tkačik G. 2025. Chromatin enables precise and scalable
    gene regulation with factors of limited specificity. Proceedings of the National
    Academy of Sciences. 122(1), e2411887121.
  mla: Perkins, Mindy Liu, et al. “Chromatin Enables Precise and Scalable Gene Regulation
    with Factors of Limited Specificity.” <i>Proceedings of the National Academy of
    Sciences</i>, vol. 122, no. 1, e2411887121, National Academy of Sciences, 2025,
    doi:<a href="https://doi.org/10.1073/pnas.2411887121">10.1073/pnas.2411887121</a>.
  short: M.L. Perkins, J. Crocker, G. Tkačik, Proceedings of the National Academy
    of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-01-19T23:01:51Z
date_published: 2025-01-07T00:00:00Z
date_updated: 2026-05-06T12:43:59Z
day: '07'
ddc:
- '570'
department:
- _id: GaTk
doi: 10.1073/pnas.2411887121
external_id:
  isi:
  - '001392765300001'
  pmid:
  - '39793086'
file:
- access_level: open_access
  checksum: 86a8d25a6e282aeb4128f1d0b86ff911
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-20T09:38:32Z
  date_updated: 2025-01-20T09:38:32Z
  file_id: '18859'
  file_name: 2025_PNAS_Perkins.pdf
  file_size: 30943709
  relation: main_file
  success: 1
file_date_updated: 2025-01-20T09:38:32Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 7bfe6a29-9f16-11ee-852c-c0da5e2045d9
  grant_number: '101118866'
  name: 'Transcription in 4D: the dynamic interplay between chromatin architecture
    and gene expression in developing pseudo-embryos'
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/officerredshirt/network_crosstalk
scopus_import: '1'
status: public
title: Chromatin enables precise and scalable gene regulation with factors of limited
  specificity
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19036'
abstract:
- lang: eng
  text: Neuronal processing of external sensory input is shaped by internally generated
    top–down information. In the neocortex, top–down projections primarily target
    layer 1, which contains NDNF (neuron-derived neurotrophic factor)-expressing interneurons
    and the dendrites of pyramidal cells. Here, we investigate the hypothesis that
    NDNF interneurons shape cortical computations in an unconventional, layer-specific
    way, by exerting presynaptic inhibition on synapses in layer 1 while leaving synapses
    in deeper layers unaffected. We first confirm experimentally that in the auditory
    cortex, synapses from somatostatin-expressing (SOM) onto NDNF neurons are indeed
    modulated by ambient Gamma-aminobutyric acid (GABA). Shifting to a computational
    model, we then show that this mechanism introduces a distinct mutual inhibition
    motif between NDNF interneurons and the synaptic outputs of SOM interneurons.
    This motif can control inhibition in a layer-specific way and introduces competition
    between NDNF and SOM interneurons for dendritic inhibition onto pyramidal cells
    on different timescales. NDNF interneurons can thereby control cortical information
    flow by redistributing dendritic inhibition from fast to slow timescales and by
    gating different sources of dendritic inhibition.
acknowledgement: "We thank all members of the Letzkus lab, the Sprekeler lab, and
  the Vogels lab for discussions, U. Thirimanna for technical assistance, and K. Deisseroth
  for generously sharing reagents. This work was supported by the German Research
  Foundation (LE 3804/3-1, LE 3804/4-1, LE 3804/7-1, CRC-TRR 384/1 2024, - 514483642,
  and 460088091) and the Wellcome Trust Senior Research Fellowship 214316/Z/18/Z.\r\nElectrophysiological
  recordings, source code for simulations, and data analysis have been deposited in
  GitHub (https://github.com/LNaumann/NDNF_control_inhibition_Naumann25) (62)."
article_number: e2408966122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Laura B
  full_name: Naumann, Laura B
  id: 81a3b706-8972-11ed-ae7b-8eff728700ca
  last_name: Naumann
- first_name: Loreen
  full_name: Hertäg, Loreen
  last_name: Hertäg
- first_name: Jennifer
  full_name: Müller, Jennifer
  last_name: Müller
- first_name: Johannes J.
  full_name: Letzkus, Johannes J.
  last_name: Letzkus
- first_name: Henning
  full_name: Sprekeler, Henning
  last_name: Sprekeler
citation:
  ama: Naumann LB, Hertäg L, Müller J, Letzkus JJ, Sprekeler H. Layer-specific control
    of inhibition by NDNF interneurons. <i>Proceedings of the National Academy of
    Sciences</i>. 2025;122(4). doi:<a href="https://doi.org/10.1073/pnas.2408966122">10.1073/pnas.2408966122</a>
  apa: Naumann, L. B., Hertäg, L., Müller, J., Letzkus, J. J., &#38; Sprekeler, H.
    (2025). Layer-specific control of inhibition by NDNF interneurons. <i>Proceedings
    of the National Academy of Sciences</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2408966122">https://doi.org/10.1073/pnas.2408966122</a>
  chicago: Naumann, Laura B, Loreen Hertäg, Jennifer Müller, Johannes J. Letzkus,
    and Henning Sprekeler. “Layer-Specific Control of Inhibition by NDNF Interneurons.”
    <i>Proceedings of the National Academy of Sciences</i>. National Academy of Sciences,
    2025. <a href="https://doi.org/10.1073/pnas.2408966122">https://doi.org/10.1073/pnas.2408966122</a>.
  ieee: L. B. Naumann, L. Hertäg, J. Müller, J. J. Letzkus, and H. Sprekeler, “Layer-specific
    control of inhibition by NDNF interneurons,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 122, no. 4. National Academy of Sciences, 2025.
  ista: Naumann LB, Hertäg L, Müller J, Letzkus JJ, Sprekeler H. 2025. Layer-specific
    control of inhibition by NDNF interneurons. Proceedings of the National Academy
    of Sciences. 122(4), e2408966122.
  mla: Naumann, Laura B., et al. “Layer-Specific Control of Inhibition by NDNF Interneurons.”
    <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no. 4, e2408966122,
    National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2408966122">10.1073/pnas.2408966122</a>.
  short: L.B. Naumann, L. Hertäg, J. Müller, J.J. Letzkus, H. Sprekeler, Proceedings
    of the National Academy of Sciences 122 (2025).
date_created: 2025-02-17T09:20:19Z
date_published: 2025-01-22T00:00:00Z
date_updated: 2026-02-16T12:28:02Z
day: '22'
ddc:
- '570'
department:
- _id: TiVo
doi: 10.1073/pnas.2408966122
external_id:
  isi:
  - '001422380500004'
  pmid:
  - '39841147'
file:
- access_level: open_access
  checksum: 636d5130724e3236ebf4fc658b3945fe
  content_type: application/pdf
  creator: dernst
  date_created: 2025-02-17T14:46:18Z
  date_updated: 2025-02-17T14:46:18Z
  file_id: '19046'
  file_name: 2025_PNAS_Naumann.pdf
  file_size: 13726531
  relation: main_file
  success: 1
file_date_updated: 2025-02-17T14:46:18Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '4'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/LNaumann/NDNF_control_inhibition_Naumann25
scopus_import: '1'
status: public
title: Layer-specific control of inhibition by NDNF interneurons
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20635'
abstract:
- lang: eng
  text: Plants have evolved sophisticated mechanisms to adapt to environmental changes,
    with root gravitropism playing a pivotal role in nutrient and water acquisition.
    Our study reveals that SnRK2 kinases (SnRK2.2 and SnRK2.3) are critical regulators
    of root gravitropism through their direct phosphorylation of the auxin transporter
    PIN2 at S259. We demonstrate that SnRK2s-mediated phosphorylation modulates both
    the polar localization and transport activity of PIN2. Importantly, SnRK2s function
    antagonistically to the AGCVIII kinase PID, which phosphorylates PIN2 at a distinct
    site (S258), establishing a regulatory balance essential for adaptive root growth.
    Structural modeling and phosphorylation assays further suggest that SnRK2s-mediated
    phosphorylation at S259 sterically hinders access of PID to S258, providing a
    mechanistic basis for their antagonistic relationship. These findings uncover
    a novel regulatory mechanism, by which plants fine-tune root developmental programs
    to adapt to environmental stimuli, highlighting the evolutionary significance
    of multilayered kinase-mediated regulation in plant adaptation.
acknowledgement: This research was funded by Biological Breeding-National Science
  and Technology Major Project (2023ZD0407201), China Postdoctoral Science Foundation
  (2024M763575), China Agricultural University Fund (2025RC042), Chinese Universities
  Scientific Fund (2024RC031), and Austrian Science Fund (FWF; I 6123-B).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: F
  full_name: Sheng, F
  last_name: Sheng
- first_name: Y
  full_name: Gao, Y
  last_name: Gao
- first_name: Y
  full_name: Wang, Y
  last_name: Wang
- first_name: Y
  full_name: Li, Y
  last_name: Li
- first_name: JA
  full_name: Zhang, JA
  last_name: Zhang
- first_name: Z
  full_name: Zhang, Z
  last_name: Zhang
- first_name: X
  full_name: Qin, X
  last_name: Qin
- first_name: S
  full_name: Zhang, S
  last_name: Zhang
- first_name: W
  full_name: Song, W
  last_name: Song
- first_name: J
  full_name: Li, J
  last_name: Li
- first_name: Y
  full_name: Guo, Y
  last_name: Guo
- first_name: Jiří
  full_name: Friml, Jiří
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
- first_name: Z
  full_name: Gong, Z
  last_name: Gong
- first_name: Q
  full_name: Zhang, Q
  last_name: Zhang
- first_name: J
  full_name: Zhang, J
  last_name: Zhang
citation:
  ama: Sheng F, Gao Y, Wang Y, et al. Antagonistic SnRK2 and PID kinases’ action on
    auxin transport-mediated root gravitropism. <i>Proceedings of the National Academy
    of Sciences</i>. 2025;122(39):e2512274122. doi:<a href="https://doi.org/10.1073/pnas.2512274122">10.1073/pnas.2512274122</a>
  apa: Sheng, F., Gao, Y., Wang, Y., Li, Y., Zhang, J., Zhang, Z., … Zhang, J. (2025).
    Antagonistic SnRK2 and PID kinases’ action on auxin transport-mediated root gravitropism.
    <i>Proceedings of the National Academy of Sciences</i>. National Academy of Sciences.
    <a href="https://doi.org/10.1073/pnas.2512274122">https://doi.org/10.1073/pnas.2512274122</a>
  chicago: Sheng, F, Y Gao, Y Wang, Y Li, JA Zhang, Z Zhang, X Qin, et al. “Antagonistic
    SnRK2 and PID Kinases’ Action on Auxin Transport-Mediated Root Gravitropism.”
    <i>Proceedings of the National Academy of Sciences</i>. National Academy of Sciences,
    2025. <a href="https://doi.org/10.1073/pnas.2512274122">https://doi.org/10.1073/pnas.2512274122</a>.
  ieee: F. Sheng <i>et al.</i>, “Antagonistic SnRK2 and PID kinases’ action on auxin
    transport-mediated root gravitropism,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 122, no. 39. National Academy of Sciences, p. e2512274122,
    2025.
  ista: Sheng F, Gao Y, Wang Y, Li Y, Zhang J, Zhang Z, Qin X, Zhang S, Song W, Li
    J, Guo Y, Friml J, Gong Z, Zhang Q, Zhang J. 2025. Antagonistic SnRK2 and PID
    kinases’ action on auxin transport-mediated root gravitropism. Proceedings of
    the National Academy of Sciences. 122(39), e2512274122.
  mla: Sheng, F., et al. “Antagonistic SnRK2 and PID Kinases’ Action on Auxin Transport-Mediated
    Root Gravitropism.” <i>Proceedings of the National Academy of Sciences</i>, vol.
    122, no. 39, National Academy of Sciences, 2025, p. e2512274122, doi:<a href="https://doi.org/10.1073/pnas.2512274122">10.1073/pnas.2512274122</a>.
  short: F. Sheng, Y. Gao, Y. Wang, Y. Li, J. Zhang, Z. Zhang, X. Qin, S. Zhang, W.
    Song, J. Li, Y. Guo, J. Friml, Z. Gong, Q. Zhang, J. Zhang, Proceedings of the
    National Academy of Sciences 122 (2025) e2512274122.
date_created: 2025-11-12T10:03:20Z
date_published: 2025-09-23T00:00:00Z
date_updated: 2026-02-16T12:32:51Z
day: '23'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1073/pnas.2512274122
external_id:
  isi:
  - '001589177800001'
  pmid:
  - '40986351'
file:
- access_level: open_access
  checksum: 38b723a909bf321d7ee537c9d064aa25
  content_type: application/pdf
  creator: dernst
  date_created: 2025-11-24T13:48:09Z
  date_updated: 2025-11-24T13:48:09Z
  file_id: '20681'
  file_name: 2025_PNAS_Sheng.pdf
  file_size: 2667764
  relation: main_file
  success: 1
file_date_updated: 2025-11-24T13:48:09Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '39'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: e2512274122
pmid: 1
project:
- _id: bd76d395-d553-11ed-ba76-f678c14f9033
  grant_number: I06123
  name: Peptide receptors for auxin canalization in Arabidopsis
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Antagonistic SnRK2 and PID kinases' action on auxin transport-mediated root
  gravitropism
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
APC_amount: 5651,35 EUR
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20795'
abstract:
- lang: eng
  text: The tropical climate variability is characterized by various oscillations
    across a range of timescales. Oscillations that imprint the tropical mean state
    are generally attributed to slow processes, such as the seasonal cycle or interannual
    variability. Here, we identify a pronounced tropics-wide intraseasonal oscillation
    (TWISO) in satellite observations and reanalyses. This oscillation, with a period
    of 30 to 60 d, is evident across multiple variables and involves interactions
    between convection, radiation, surface fluxes, and large-scale circulation. It
    is primarily manifested as convective perturbations in the tropical Indo-Pacific
    warm pool accompanied by oscillations in the large-scale tropical overturning
    circulation. Here, we examine the relationship between TWISO, the Madden–Julian
    Oscillation (MJO), and the instability of radiative-convective equilibrium. Certain
    phases of TWISO coincide with specific phases of the MJO, suggesting a potential
    connection between the two. However, although the MJO can amplify the oscillation
    amplitude of TWISO, it is not essential for TWISO to occur. Finally, due to its
    broad manifestation across the tropics, TWISO potentially exerts widespread influence
    on tropical weather and climate at regional scales.
acknowledgement: 'J.B. acknowledges funding from the European Union’s Horizon 2020
  research and innovation programme under the Marie Skłodowska-Curie grant (grant
  agreement No. 101034413). S.B. acknowledges funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation program (Project
  Mesoscale organization of tropical convection, grant agreement No 101098063). D.T.
  acknowledges funding from the Japan Society for the Promotion of Science (JSPS)
  (Project JSPS Grants-in-Aid for Scientiﬁc Research, grant No. JP24K22893). C.M.
  gratefully acknowledges funding from the ERC under the European Union’s Horizon
  2020 research and innovation program (Project organisation of CLoUdS, and implications
  for Tropical cyclones and for the Energetics of the tropics, in current and in a
  waRming climate, grant agreement No. 805041). We thank Martin Singh, Steven Sherwood,
  Bjorn Stevens, and Lokahith Agasthya for helpful discussions. JSPS Core-to-Core
  Program, “International Core-to-Core Project on Global Storm Resolving Analysis”
  (Grant Number: JPJSCCA20220001)'
article_number: e2511549122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Jiawei
  full_name: Bao, Jiawei
  id: bb9a7399-fefd-11ed-be3c-ae648fd1d160
  last_name: Bao
- first_name: Sandrine
  full_name: Bony, Sandrine
  last_name: Bony
- first_name: Daisuke
  full_name: Takasuka, Daisuke
  last_name: Takasuka
- first_name: Caroline J
  full_name: Muller, Caroline J
  id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
  last_name: Muller
  orcid: 0000-0001-5836-5350
citation:
  ama: Bao J, Bony S, Takasuka D, Muller CJ. Tropics-wide intraseasonal oscillations.
    <i>Proceedings of the National Academy of Sciences</i>. 2025;122(48). doi:<a href="https://doi.org/10.1073/pnas.2511549122">10.1073/pnas.2511549122</a>
  apa: Bao, J., Bony, S., Takasuka, D., &#38; Muller, C. J. (2025). Tropics-wide intraseasonal
    oscillations. <i>Proceedings of the National Academy of Sciences</i>. National
    Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2511549122">https://doi.org/10.1073/pnas.2511549122</a>
  chicago: Bao, Jiawei, Sandrine Bony, Daisuke Takasuka, and Caroline J Muller. “Tropics-Wide
    Intraseasonal Oscillations.” <i>Proceedings of the National Academy of Sciences</i>.
    National Academy of Sciences, 2025. <a href="https://doi.org/10.1073/pnas.2511549122">https://doi.org/10.1073/pnas.2511549122</a>.
  ieee: J. Bao, S. Bony, D. Takasuka, and C. J. Muller, “Tropics-wide intraseasonal
    oscillations,” <i>Proceedings of the National Academy of Sciences</i>, vol. 122,
    no. 48. National Academy of Sciences, 2025.
  ista: Bao J, Bony S, Takasuka D, Muller CJ. 2025. Tropics-wide intraseasonal oscillations.
    Proceedings of the National Academy of Sciences. 122(48), e2511549122.
  mla: Bao, Jiawei, et al. “Tropics-Wide Intraseasonal Oscillations.” <i>Proceedings
    of the National Academy of Sciences</i>, vol. 122, no. 48, e2511549122, National
    Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2511549122">10.1073/pnas.2511549122</a>.
  short: J. Bao, S. Bony, D. Takasuka, C.J. Muller, Proceedings of the National Academy
    of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-12-11T10:41:13Z
date_published: 2025-12-02T00:00:00Z
date_updated: 2026-05-20T08:11:56Z
day: '02'
ddc:
- '550'
department:
- _id: CaMu
doi: 10.1073/pnas.2511549122
ec_funded: 1
external_id:
  pmid:
  - '41284872'
file:
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  date_created: 2025-12-15T09:17:33Z
  date_updated: 2025-12-15T09:17:33Z
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file_date_updated: 2025-12-15T09:17:33Z
has_accepted_license: '1'
intvolume: '       122'
issue: '48'
language:
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month: '12'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
- _id: 629205d8-2b32-11ec-9570-e1356ff73576
  call_identifier: H2020
  grant_number: '805041'
  name: Organization of CLoUdS, and implications of Tropical  cyclones and for the
    Energetics of the tropics, in current and waRming climate
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - description: News on ISTA website
    relation: press_release
    url: https://ista.ac.at/en/news/hidden-in-plain-sight/
scopus_import: '1'
status: public
title: Tropics-wide intraseasonal oscillations
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 122
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19809'
abstract:
- lang: eng
  text: In many physical situations in which many-body assemblies exist at temperature
    T, a characteristic quantum-mechanical time scale of approximately h/kbT can be
    identified in both theory and experiment, leading to speculation that it may be
    the shortest meaningful time in such circumstances. This behavior can be investigated
    by probing the scattering rate of electrons in a broad class of materials often
    referred to as “strongly correlated metals”. It is clear that in some cases only
    electron–electron scattering can be its cause, while in others it arises from
    high-temperature scattering of electrons from quantized lattice vibrations, i.e.,
    phonons. In metallic oxides, which are among the most studied materials, analysis
    of electrical transport does not satisfactorily identify the relevant scattering
    mechanism at “high” temperatures near room temperature. We therefore employ a
    contactless optical method to measure thermal diffusivity in two Ru-based layered
    perovskites, Sr3Ru2O7 and Sr2RuO4, and use the measurements to extract the dimensionless
    Lorenz ratio. By comparing our results to the literature data on both conventional
    and unconventional metals, we show how the analysis of high-temperature thermal
    transport can both give important insight into dominant scattering mechanisms
    and be offered as a stringent test of theories attempting to explain anomalous
    scattering.
article_processing_charge: No
article_type: original
author:
- first_name: Fei
  full_name: Sun, Fei
  last_name: Sun
- first_name: Simli
  full_name: Mishra, Simli
  last_name: Mishra
- first_name: Ulrike
  full_name: Stockert, Ulrike
  last_name: Stockert
- first_name: Ramzy
  full_name: Daou, Ramzy
  last_name: Daou
- first_name: Naoki
  full_name: Kikugawa, Naoki
  last_name: Kikugawa
- first_name: Robin S.
  full_name: Perry, Robin S.
  last_name: Perry
- first_name: Elena
  full_name: Hassinger, Elena
  last_name: Hassinger
- first_name: Sean A.
  full_name: Hartnoll, Sean A.
  last_name: Hartnoll
- first_name: Andrew P.
  full_name: Mackenzie, Andrew P.
  last_name: Mackenzie
- first_name: Veronika
  full_name: Sunko, Veronika
  id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
  last_name: Sunko
  orcid: 0000-0003-2724-3523
citation:
  ama: Sun F, Mishra S, Stockert U, et al. The Lorenz ratio as a guide to scattering
    contributions to transport in strongly correlated metals. <i>Proceedings of the
    National Academy of Sciences</i>. 2024;121(35). doi:<a href="https://doi.org/10.1073/pnas.2318159121">10.1073/pnas.2318159121</a>
  apa: Sun, F., Mishra, S., Stockert, U., Daou, R., Kikugawa, N., Perry, R. S., …
    Sunko, V. (2024). The Lorenz ratio as a guide to scattering contributions to transport
    in strongly correlated metals. <i>Proceedings of the National Academy of Sciences</i>.
    National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2318159121">https://doi.org/10.1073/pnas.2318159121</a>
  chicago: Sun, Fei, Simli Mishra, Ulrike Stockert, Ramzy Daou, Naoki Kikugawa, Robin
    S. Perry, Elena Hassinger, Sean A. Hartnoll, Andrew P. Mackenzie, and Veronika
    Sunko. “The Lorenz Ratio as a Guide to Scattering Contributions to Transport in
    Strongly Correlated Metals.” <i>Proceedings of the National Academy of Sciences</i>.
    National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2318159121">https://doi.org/10.1073/pnas.2318159121</a>.
  ieee: F. Sun <i>et al.</i>, “The Lorenz ratio as a guide to scattering contributions
    to transport in strongly correlated metals,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 121, no. 35. National Academy of Sciences, 2024.
  ista: Sun F, Mishra S, Stockert U, Daou R, Kikugawa N, Perry RS, Hassinger E, Hartnoll
    SA, Mackenzie AP, Sunko V. 2024. The Lorenz ratio as a guide to scattering contributions
    to transport in strongly correlated metals. Proceedings of the National Academy
    of Sciences. 121(35).
  mla: Sun, Fei, et al. “The Lorenz Ratio as a Guide to Scattering Contributions to
    Transport in Strongly Correlated Metals.” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 121, no. 35, National Academy of Sciences, 2024, doi:<a
    href="https://doi.org/10.1073/pnas.2318159121">10.1073/pnas.2318159121</a>.
  short: F. Sun, S. Mishra, U. Stockert, R. Daou, N. Kikugawa, R.S. Perry, E. Hassinger,
    S.A. Hartnoll, A.P. Mackenzie, V. Sunko, Proceedings of the National Academy of
    Sciences 121 (2024).
date_created: 2025-06-10T09:12:41Z
date_published: 2024-08-27T00:00:00Z
date_updated: 2025-06-10T11:50:48Z
day: '27'
doi: 10.1073/pnas.2318159121
extern: '1'
external_id:
  pmid:
  - '39172781'
has_accepted_license: '1'
intvolume: '       121'
issue: '35'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1073/pnas.2318159121
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Lorenz ratio as a guide to scattering contributions to transport in strongly
  correlated metals
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
APC_amount: 3062,93 EUR
OA_place: publisher
OA_type: hybrid
_id: '18525'
abstract:
- lang: eng
  text: As their statistical power grows, genome-wide association studies (GWAS) have
    identified an increasing number of loci underlying quantitative traits of interest.
    These loci are scattered throughout the genome and are individually responsible
    only for small fractions of the total heritable trait variance. The recently proposed
    omnigenic model provides a conceptual framework to explain these observations
    by postulating that numerous distant loci contribute to each complex trait via
    effect propagation through intracellular regulatory networks. We formalize this
    conceptual framework by proposing the “quantitative omnigenic model” (QOM), a
    statistical model that combines prior knowledge of the regulatory network topology
    with genomic data. By applying our model to gene expression traits in yeast, we
    demonstrate that QOM achieves similar gene expression prediction performance to
    traditional GWAS with hundreds of times less parameters, while simultaneously
    extracting candidate causal and quantitative chains of effect propagation through
    the regulatory network for every individual gene. We estimate the fraction of
    heritable trait variance in cis- and in trans-, break the latter down by effect
    propagation order, assess the trans- variance not attributable to transcriptional
    regulation, and show that QOM correctly accounts for the low-dimensional structure
    of gene expression covariance. We furthermore demonstrate the relevance of QOM
    for systems biology, by employing it as a statistical test for the quality of
    regulatory network reconstructions, and linking it to the propagation of nontranscriptional
    (including environmental) effects.
acknowledgement: N.R.acknowledges the support of the Austrian Academy of Sciences
  through the Doctoral Fellowship Programme (DOC) of the Austrian Academy of Sciences
  26917. M.H. and G.T. were supported in part by the Human Frontiers Science Program
  Grant RGP0034/2018. We thank Nicholas H. Barton, Fyodor Kondrashov, and Matthew
  R. Robinson for fruitful discussions.
article_number: e2402340121
article_processing_charge: Yes
article_type: original
author:
- first_name: Natalia
  full_name: Ruzickova, Natalia
  id: D2761128-D73D-11E9-A1BF-BA0DE6697425
  last_name: Ruzickova
- first_name: Michal
  full_name: Hledik, Michal
  id: 4171253A-F248-11E8-B48F-1D18A9856A87
  last_name: Hledik
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
citation:
  ama: Ruzickova N, Hledik M, Tkačik G. Quantitative omnigenic model discovers interpretable
    genome-wide associations. <i>Proceedings of the National Academy of Sciences of
    the United States of America</i>. 2024;121(44). doi:<a href="https://doi.org/10.1073/pnas.2402340121">10.1073/pnas.2402340121</a>
  apa: Ruzickova, N., Hledik, M., &#38; Tkačik, G. (2024). Quantitative omnigenic
    model discovers interpretable genome-wide associations. <i>Proceedings of the
    National Academy of Sciences of the United States of America</i>. National Academy
    of Sciences. <a href="https://doi.org/10.1073/pnas.2402340121">https://doi.org/10.1073/pnas.2402340121</a>
  chicago: Ruzickova, Natalia, Michal Hledik, and Gašper Tkačik. “Quantitative Omnigenic
    Model Discovers Interpretable Genome-Wide Associations.” <i>Proceedings of the
    National Academy of Sciences of the United States of America</i>. National Academy
    of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2402340121">https://doi.org/10.1073/pnas.2402340121</a>.
  ieee: N. Ruzickova, M. Hledik, and G. Tkačik, “Quantitative omnigenic model discovers
    interpretable genome-wide associations,” <i>Proceedings of the National Academy
    of Sciences of the United States of America</i>, vol. 121, no. 44. National Academy
    of Sciences, 2024.
  ista: Ruzickova N, Hledik M, Tkačik G. 2024. Quantitative omnigenic model discovers
    interpretable genome-wide associations. Proceedings of the National Academy of
    Sciences of the United States of America. 121(44), e2402340121.
  mla: Ruzickova, Natalia, et al. “Quantitative Omnigenic Model Discovers Interpretable
    Genome-Wide Associations.” <i>Proceedings of the National Academy of Sciences
    of the United States of America</i>, vol. 121, no. 44, e2402340121, National Academy
    of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2402340121">10.1073/pnas.2402340121</a>.
  short: N. Ruzickova, M. Hledik, G. Tkačik, Proceedings of the National Academy of
    Sciences of the United States of America 121 (2024).
corr_author: '1'
date_created: 2024-11-10T23:01:59Z
date_published: 2024-10-29T00:00:00Z
date_updated: 2026-04-07T12:02:39Z
day: '29'
ddc:
- '570'
department:
- _id: GaTk
- _id: NiBa
doi: 10.1073/pnas.2402340121
external_id:
  isi:
  - '001349462600001'
  pmid:
  - '39441639'
file:
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  creator: dernst
  date_created: 2024-11-11T09:31:00Z
  date_updated: 2024-11-11T09:31:00Z
  file_id: '18536'
  file_name: 2024_PNAS_Ruzickova.pdf
  file_size: 25529709
  relation: main_file
  success: 1
file_date_updated: 2024-11-11T09:31:00Z
has_accepted_license: '1'
intvolume: '       121'
isi: 1
issue: '44'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 7bec9174-9f16-11ee-852c-ded9fe5f810e
  name: Collective behaviour of cells in pancreatic Islets of Langerhans
- _id: 2665AAFE-B435-11E9-9278-68D0E5697425
  grant_number: RGP0034/2018
  name: Can evolution minimize spurious signaling crosstalk to reach optimal performance?
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
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    status: public
scopus_import: '1'
status: public
title: Quantitative omnigenic model discovers interpretable genome-wide associations
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 121
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '18526'
abstract:
- lang: eng
  text: Multivesicular endosomes (MVEs) sequester membrane proteins destined for degradation
    within intralumenal vesicles (ILVs), a process mediated by the membrane-remodeling
    action of Endosomal Sorting Complex Required for Transport (ESCRT) proteins. In
    Arabidopsis, endosomal membrane constriction and scission are uncoupled, resulting
    in the formation of extensive concatenated ILV networks and enhancing cargo sequestration
    efficiency. Here, we used a combination of electron tomography, computer simulations,
    and mathematical modeling to address the questions of when concatenated ILV networks
    evolved in plants and what drives their formation. Through morphometric analyses
    of tomographic reconstructions of endosomes across yeast, algae, and various land
    plants, we have found that ILV concatenation is widespread within plant species,
    but only prevalent in seed plants, especially in flowering plants. Multiple budding
    sites that require the formation of pores in the limiting membrane were only identified
    in hornworts and seed plants, suggesting that this mechanism has evolved independently
    in both plant lineages. To identify the conditions under which these multiple
    budding sites can arise, we used particle-based molecular dynamics simulations
    and found that changes in ESCRT filament properties, such as filament curvature
    and membrane binding energy, can generate the membrane shapes observed in multiple
    budding sites. To understand the relationship between membrane budding activity
    and ILV network topology, we performed computational simulations and identified
    a set of membrane remodeling parameters that can recapitulate our tomographic
    datasets.
acknowledgement: We would like to thank Janice Pennington for her support with electron
  tomography data collection, Dr. Ingrid Jordon-Thaden, director of the Botany Garden
  and Greenhouse of University of Wisconsin Madison, for her invaluable assistance
  collecting plant materials, Dr. Marie Trest for providing Chara specimens, and Dr.
  Nicholas Keuler for his advice on statistical analyses. We thank Charlie Hamilton
  for exploring the initial computational model. This work was supported by grant
  NSF MCB 2114603 and NIH 1S10OD026769-01 to M.S.O. F.F acknowledges support as a
  NOMIS Fellow from the NOMIS Foundation. A.Š. acknowledges ERC Starting Grant “NEPA”
  802960.
article_number: e2409407121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Ethan
  full_name: Weiner, Ethan
  last_name: Weiner
- first_name: Elizabeth
  full_name: Berryman, Elizabeth
  last_name: Berryman
- first_name: Felix F
  full_name: Frey, Felix F
  id: a0270b37-8f1a-11ec-95c7-8e710c59a4f3
  last_name: Frey
  orcid: 0000-0001-8501-6017
- first_name: Ariadna González
  full_name: Solís, Ariadna González
  last_name: Solís
- first_name: André
  full_name: Leier, André
  last_name: Leier
- first_name: Tatiana Marquez
  full_name: Lago, Tatiana Marquez
  last_name: Lago
- first_name: Anđela
  full_name: Šarić, Anđela
  id: bf63d406-f056-11eb-b41d-f263a6566d8b
  last_name: Šarić
  orcid: 0000-0002-7854-2139
- first_name: Marisa S.
  full_name: Otegui, Marisa S.
  last_name: Otegui
citation:
  ama: Weiner E, Berryman E, Frey FF, et al. Endosomal membrane budding patterns in
    plants. <i>Proceedings of the National Academy of Sciences of the United States
    of America</i>. 2024;121(44). doi:<a href="https://doi.org/10.1073/pnas.2409407121">10.1073/pnas.2409407121</a>
  apa: Weiner, E., Berryman, E., Frey, F. F., Solís, A. G., Leier, A., Lago, T. M.,
    … Otegui, M. S. (2024). Endosomal membrane budding patterns in plants. <i>Proceedings
    of the National Academy of Sciences of the United States of America</i>. National
    Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2409407121">https://doi.org/10.1073/pnas.2409407121</a>
  chicago: Weiner, Ethan, Elizabeth Berryman, Felix F Frey, Ariadna González Solís,
    André Leier, Tatiana Marquez Lago, Anđela Šarić, and Marisa S. Otegui. “Endosomal
    Membrane Budding Patterns in Plants.” <i>Proceedings of the National Academy of
    Sciences of the United States of America</i>. National Academy of Sciences, 2024.
    <a href="https://doi.org/10.1073/pnas.2409407121">https://doi.org/10.1073/pnas.2409407121</a>.
  ieee: E. Weiner <i>et al.</i>, “Endosomal membrane budding patterns in plants,”
    <i>Proceedings of the National Academy of Sciences of the United States of America</i>,
    vol. 121, no. 44. National Academy of Sciences, 2024.
  ista: Weiner E, Berryman E, Frey FF, Solís AG, Leier A, Lago TM, Šarić A, Otegui
    MS. 2024. Endosomal membrane budding patterns in plants. Proceedings of the National
    Academy of Sciences of the United States of America. 121(44), e2409407121.
  mla: Weiner, Ethan, et al. “Endosomal Membrane Budding Patterns in Plants.” <i>Proceedings
    of the National Academy of Sciences of the United States of America</i>, vol.
    121, no. 44, e2409407121, National Academy of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2409407121">10.1073/pnas.2409407121</a>.
  short: E. Weiner, E. Berryman, F.F. Frey, A.G. Solís, A. Leier, T.M. Lago, A. Šarić,
    M.S. Otegui, Proceedings of the National Academy of Sciences of the United States
    of America 121 (2024).
date_created: 2024-11-10T23:01:59Z
date_published: 2024-10-29T00:00:00Z
date_updated: 2025-09-08T14:38:35Z
day: '29'
ddc:
- '570'
department:
- _id: AnSa
doi: 10.1073/pnas.2409407121
ec_funded: 1
external_id:
  isi:
  - '001349500800007'
  pmid:
  - '39441629'
file:
- access_level: open_access
  checksum: 21c82d2ab58ff99b2bd0489797be42e5
  content_type: application/pdf
  creator: dernst
  date_created: 2024-11-11T09:35:15Z
  date_updated: 2024-11-11T09:35:15Z
  file_id: '18538'
  file_name: 2024_PNAS_Weiner.pdf
  file_size: 5268074
  relation: main_file
  success: 1
file_date_updated: 2024-11-11T09:35:15Z
has_accepted_license: '1'
intvolume: '       121'
isi: 1
issue: '44'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: eba2549b-77a9-11ec-83b8-a81e493eae4e
  call_identifier: H2020
  grant_number: '802960'
  name: 'Non-Equilibrium Protein Assembly: from Building Blocks to Biological Machines'
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Endosomal membrane budding patterns in plants
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 121
year: '2024'
...
---
APC_amount: 3143,76 EUR
OA_place: publisher
OA_type: hybrid
_id: '18703'
abstract:
- lang: eng
  text: 'Spatial games provide a simple and elegant mathematical model to study the
    evolution of cooperation in networks. In spatial games, individuals reside in
    vertices, adopt simple strategies, and interact with neighbors to receive a payoff.
    Depending on their own and neighbors’ payoffs, individuals can change their strategy.
    The payoff is determined by the Prisoners’ Dilemma, a classical matrix game, where
    players cooperate or defect. While cooperation is the desired behavior, defection
    provides a higher payoff for a selfish individual. There are many theoretical
    and empirical studies related to the role of the network in the evolution of cooperation.
    However, the fundamental question of whether there exist networks that for low
    initial cooperation rate ensure a high chance of fixation, i.e., cooperation spreads
    across the whole population, has remained elusive for spatial games with strong
    selection. In this work, we answer this fundamental question in the affirmative
    by presenting network structures that ensure high fixation probability for cooperators
    in the strong selection regime. Besides, our structures have many desirable properties:
    (a) they ensure the spread of cooperation even for a low initial density of cooperation
    and high temptation of defection, (b) they have constant degrees, and (c) the
    number of steps, until cooperation spreads, is at most quadratic in the size of
    the network.'
acknowledgement: J.S. and K.C. were supported by the European Research Council CoG
  863818 (ForM-SMArt) and Austrian Science Fund 10.55776/COE12.
article_number: e2405605121
article_processing_charge: Yes
article_type: original
author:
- first_name: Jakub
  full_name: Svoboda, Jakub
  id: 130759D2-D7DD-11E9-87D2-DE0DE6697425
  last_name: Svoboda
  orcid: 0000-0002-1419-3267
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: Svoboda J, Chatterjee K. Density amplifiers of cooperation for spatial games.
    <i>Proceedings of the National Academy of Sciences of the United States of America</i>.
    2024;121(50). doi:<a href="https://doi.org/10.1073/pnas.2405605121">10.1073/pnas.2405605121</a>
  apa: Svoboda, J., &#38; Chatterjee, K. (2024). Density amplifiers of cooperation
    for spatial games. <i>Proceedings of the National Academy of Sciences of the United
    States of America</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2405605121">https://doi.org/10.1073/pnas.2405605121</a>
  chicago: Svoboda, Jakub, and Krishnendu Chatterjee. “Density Amplifiers of Cooperation
    for Spatial Games.” <i>Proceedings of the National Academy of Sciences of the
    United States of America</i>. National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2405605121">https://doi.org/10.1073/pnas.2405605121</a>.
  ieee: J. Svoboda and K. Chatterjee, “Density amplifiers of cooperation for spatial
    games,” <i>Proceedings of the National Academy of Sciences of the United States
    of America</i>, vol. 121, no. 50. National Academy of Sciences, 2024.
  ista: Svoboda J, Chatterjee K. 2024. Density amplifiers of cooperation for spatial
    games. Proceedings of the National Academy of Sciences of the United States of
    America. 121(50), e2405605121.
  mla: Svoboda, Jakub, and Krishnendu Chatterjee. “Density Amplifiers of Cooperation
    for Spatial Games.” <i>Proceedings of the National Academy of Sciences of the
    United States of America</i>, vol. 121, no. 50, e2405605121, National Academy
    of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2405605121">10.1073/pnas.2405605121</a>.
  short: J. Svoboda, K. Chatterjee, Proceedings of the National Academy of Sciences
    of the United States of America 121 (2024).
corr_author: '1'
date_created: 2024-12-22T23:01:47Z
date_published: 2024-12-10T00:00:00Z
date_updated: 2026-04-07T11:49:11Z
day: '10'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1073/pnas.2405605121
ec_funded: 1
external_id:
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  - '001379596100014'
  pmid:
  - '39642209'
file:
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  file_size: 2491151
  relation: main_file
  success: 1
file_date_updated: 2025-01-02T12:14:15Z
has_accepted_license: '1'
intvolume: '       121'
isi: 1
issue: '50'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
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    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Density amplifiers of cooperation for spatial games
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 121
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
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abstract:
- lang: eng
  text: The synthesis of proteins as encoded in the genome depends critically on translational
    fidelity. Nevertheless, errors inevitably occur, and those that result in reading
    frame shifts are particularly consequential because the resulting polypeptides
    are typically nonfunctional. Despite the generally maladaptive impact of such
    errors, the proper decoding of certain mRNAs, including many viral mRNAs, depends
    on a process known as programmed ribosomal frameshifting. The fact that these
    programmed events, commonly involving a shift to the –1 frame, occur at specific
    evolutionarily optimized “slippery” sites has facilitated mechanistic investigation.
    By contrast, less is known about the scope and nature of error (i.e., nonprogrammed)
    frameshifting. Here, we examine error frameshifting by monitoring spontaneous
    frameshift events that suppress the effects of single base pair deletions affecting
    two unrelated test proteins. To map the precise sites of frameshifting, we developed
    a targeted mass spectrometry–based method called “translational tiling proteomics”
    for interrogating the full set of possible –1 slippage events that could produce
    the observed frameshift suppression. Surprisingly, such events occur at many sites
    along the transcripts, involving up to one half of the available codons. Only
    a subset of these resembled canonical “slippery” sites, implicating alternative
    mechanisms potentially involving noncognate mispairing events. Additionally, the
    aggregate frequency of these events (ranging from 1 to 10% in our test cases)
    was higher than we might have anticipated. Our findings point to an unexpected
    degree of mechanistic diversity among ribosomal frameshifting events and suggest
    that frameshifted products may contribute more significantly to the proteome than
    generally assumed.
acknowledgement: We thank S. L. Dove for valuable discussion and comments on the manuscript
  and R. Hellmiss for artwork. This work was supported by NIH grants GM136247 to A.H.,
  AG011085 to J.W.H., and GM132129 to J.A.P.
article_number: e2317453121
article_processing_charge: No
article_type: original
author:
- first_name: Benjamin L
  full_name: Springstein, Benjamin L
  id: b4eb62ef-ac72-11ed-9503-ed3b4d66c083
  last_name: Springstein
  orcid: 0000-0002-3461-5391
- first_name: Joao A.
  full_name: Paulo, Joao A.
  last_name: Paulo
- first_name: Hankum
  full_name: Park, Hankum
  last_name: Park
- first_name: Kemardo
  full_name: Henry, Kemardo
  last_name: Henry
- first_name: Eleanor
  full_name: Fleming, Eleanor
  last_name: Fleming
- first_name: Zoë
  full_name: Feder, Zoë
  last_name: Feder
- first_name: J. Wade
  full_name: Harper, J. Wade
  last_name: Harper
- first_name: Ann
  full_name: Hochschild, Ann
  last_name: Hochschild
citation:
  ama: Springstein BL, Paulo JA, Park H, et al. Systematic analysis of nonprogrammed
    frameshift suppression in E.coli via translational tiling proteomics. <i>Proceedings
    of the National Academy of Sciences of the United States of America</i>. 2024;121(6).
    doi:<a href="https://doi.org/10.1073/pnas.2317453121">10.1073/pnas.2317453121</a>
  apa: Springstein, B. L., Paulo, J. A., Park, H., Henry, K., Fleming, E., Feder,
    Z., … Hochschild, A. (2024). Systematic analysis of nonprogrammed frameshift suppression
    in E.coli via translational tiling proteomics. <i>Proceedings of the National
    Academy of Sciences of the United States of America</i>. National Academy of Sciences.
    <a href="https://doi.org/10.1073/pnas.2317453121">https://doi.org/10.1073/pnas.2317453121</a>
  chicago: Springstein, Benjamin L, Joao A. Paulo, Hankum Park, Kemardo Henry, Eleanor
    Fleming, Zoë Feder, J. Wade Harper, and Ann Hochschild. “Systematic Analysis of
    Nonprogrammed Frameshift Suppression in E.Coli via Translational Tiling Proteomics.”
    <i>Proceedings of the National Academy of Sciences of the United States of America</i>.
    National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2317453121">https://doi.org/10.1073/pnas.2317453121</a>.
  ieee: B. L. Springstein <i>et al.</i>, “Systematic analysis of nonprogrammed frameshift
    suppression in E.coli via translational tiling proteomics,” <i>Proceedings of
    the National Academy of Sciences of the United States of America</i>, vol. 121,
    no. 6. National Academy of Sciences, 2024.
  ista: Springstein BL, Paulo JA, Park H, Henry K, Fleming E, Feder Z, Harper JW,
    Hochschild A. 2024. Systematic analysis of nonprogrammed frameshift suppression
    in E.coli via translational tiling proteomics. Proceedings of the National Academy
    of Sciences of the United States of America. 121(6), e2317453121.
  mla: Springstein, Benjamin L., et al. “Systematic Analysis of Nonprogrammed Frameshift
    Suppression in E.Coli via Translational Tiling Proteomics.” <i>Proceedings of
    the National Academy of Sciences of the United States of America</i>, vol. 121,
    no. 6, e2317453121, National Academy of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2317453121">10.1073/pnas.2317453121</a>.
  short: B.L. Springstein, J.A. Paulo, H. Park, K. Henry, E. Fleming, Z. Feder, J.W.
    Harper, A. Hochschild, Proceedings of the National Academy of Sciences of the
    United States of America 121 (2024).
date_created: 2025-01-29T08:39:27Z
date_published: 2024-02-06T00:00:00Z
date_updated: 2025-05-14T11:02:52Z
day: '06'
ddc:
- '570'
department:
- _id: MaLo
doi: 10.1073/pnas.2317453121
external_id:
  pmid:
  - '38289956'
file:
- access_level: open_access
  checksum: 5bd62c7cb4287e3706a1d45d6ef61fd1
  content_type: application/pdf
  creator: dernst
  date_created: 2025-01-29T08:43:16Z
  date_updated: 2025-01-29T08:43:16Z
  file_id: '18939'
  file_name: 2024_PNAS_Springstein.pdf
  file_size: 720902
  relation: main_file
  success: 1
file_date_updated: 2025-01-29T08:43:16Z
has_accepted_license: '1'
intvolume: '       121'
issue: '6'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Systematic analysis of nonprogrammed frameshift suppression in E.coli via translational
  tiling proteomics
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
APC_amount: 3040,36 EUR
OA_place: publisher
OA_type: hybrid
_id: '14478'
abstract:
- lang: eng
  text: Entire chromosomes are typically only transmitted vertically from one generation
    to the next. The horizontal transfer of such chromosomes has long been considered
    improbable, yet gained recent support in several pathogenic fungi where it may
    affect the fitness or host specificity. To date, it is unknown how these transfers
    occur, how common they are and whether they can occur between different species.
    In this study, we show multiple independent instances of horizontal transfers
    of the same accessory chromosome between two distinct strains of the asexual entomopathogenic
    fungus<jats:italic>Metarhizium robertsii</jats:italic>during experimental co-infection
    of its insect host, the Argentine ant. Notably, only the one chromosome – but
    no other – was transferred from the donor to the recipient strain. The recipient
    strain, now harboring the accessory chromosome, exhibited a competitive advantage
    under certain host conditions. By phylogenetic analysis we further demonstrate
    that the same accessory chromosome was horizontally transferred in a natural environment
    between<jats:italic>M. robertsii</jats:italic>and another congeneric insect pathogen,<jats:italic>M.
    guizhouense</jats:italic>. Hence horizontal chromosome transfer is not limited
    to the observed frequent events within species during experimental infections
    but also occurs naturally across species. The transferred accessory chromosome
    contains genes that might be involved in its preferential horizontal transfer,
    encoding putative histones and histone-modifying enzymes, but also putative virulence
    factors that may support its establishment. Our study reveals that both intra-
    and interspecies horizontal transfer of entire chromosomes is more frequent than
    previously assumed, likely representing a not uncommon mechanism for gene exchange.</jats:p><jats:sec><jats:title>Significance
    Statement</jats:title><jats:p>The enormous success of bacterial pathogens has
    been attributed to their ability to exchange genetic material between one another.
    Similarly, in eukaryotes, horizontal transfer of genetic material allowed the
    spread of virulence factors across species. The horizontal transfer of whole chromosomes
    could be an important pathway for such exchange of genetic material, but little
    is known about the origin of transferable chromosomes and how frequently they
    are exchanged. Here, we show that the transfer of accessory chromosomes - chromosomes
    that are non-essential but may provide fitness benefits - is common during fungal
    co-infections and is even possible between distant pathogenic species, highlighting
    the importance of horizontal gene transfer via chromosome transfer also for the
    evolution and function of eukaryotic pathogens.
acknowledgement: We thank Bernhardt Steinwender, Jorgen Eilenberg, and Nicolai V.
  Meyling for the fungal strains. We further thank Chengshu Wang for providing the
  short sequencing reads for M. guizhouense ARESF977 he used for his published genome
  assembly, and Kristian Ullrich for help in the bioinformatics analysis for methylation
  pattern in Nanopore reads, and the VBC and the Max Planck Society for the use of
  their sequencing centers. We thank Barbara Milutinović and Hinrich Schulenburg for
  discussion, and Tal Dagan and Jens Rolff for comments on a previous version of the
  manuscript. Fig. 1A was created with BioRender.com. This study received funding
  by the European Research Council under the European Union’s Horizon 2020 Research
  and Innovation Programme (No. 771402; EPIDEMICSonCHIP) to S.C. and by the German
  Research Foundation (DFG grant HA9263/1-1) to M.H.
article_number: e2316284121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Michael
  full_name: Habig, Michael
  last_name: Habig
- first_name: Anna V
  full_name: Grasse, Anna V
  id: 406F989C-F248-11E8-B48F-1D18A9856A87
  last_name: Grasse
- first_name: Judith
  full_name: Müller, Judith
  last_name: Müller
- first_name: Eva H.
  full_name: Stukenbrock, Eva H.
  last_name: Stukenbrock
- first_name: Hanna
  full_name: Leitner, Hanna
  id: 8fc5c6f6-5903-11ec-abad-c83f046253e7
  last_name: Leitner
- first_name: Sylvia
  full_name: Cremer, Sylvia
  id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
  last_name: Cremer
  orcid: 0000-0002-2193-3868
citation:
  ama: Habig M, Grasse AV, Müller J, Stukenbrock EH, Leitner H, Cremer S. Frequent
    horizontal chromosome transfer between asexual fungal insect pathogens. <i>Proceedings
    of the National Academy of Sciences of the United States of America</i>. 2024;121(11).
    doi:<a href="https://doi.org/10.1073/pnas.2316284121">10.1073/pnas.2316284121</a>
  apa: Habig, M., Grasse, A. V., Müller, J., Stukenbrock, E. H., Leitner, H., &#38;
    Cremer, S. (2024). Frequent horizontal chromosome transfer between asexual fungal
    insect pathogens. <i>Proceedings of the National Academy of Sciences of the United
    States of America</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2316284121">https://doi.org/10.1073/pnas.2316284121</a>
  chicago: Habig, Michael, Anna V Grasse, Judith Müller, Eva H. Stukenbrock, Hanna
    Leitner, and Sylvia Cremer. “Frequent Horizontal Chromosome Transfer between Asexual
    Fungal Insect Pathogens.” <i>Proceedings of the National Academy of Sciences of
    the United States of America</i>. National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2316284121">https://doi.org/10.1073/pnas.2316284121</a>.
  ieee: M. Habig, A. V. Grasse, J. Müller, E. H. Stukenbrock, H. Leitner, and S. Cremer,
    “Frequent horizontal chromosome transfer between asexual fungal insect pathogens,”
    <i>Proceedings of the National Academy of Sciences of the United States of America</i>,
    vol. 121, no. 11. National Academy of Sciences, 2024.
  ista: Habig M, Grasse AV, Müller J, Stukenbrock EH, Leitner H, Cremer S. 2024. Frequent
    horizontal chromosome transfer between asexual fungal insect pathogens. Proceedings
    of the National Academy of Sciences of the United States of America. 121(11),
    e2316284121.
  mla: Habig, Michael, et al. “Frequent Horizontal Chromosome Transfer between Asexual
    Fungal Insect Pathogens.” <i>Proceedings of the National Academy of Sciences of
    the United States of America</i>, vol. 121, no. 11, e2316284121, National Academy
    of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2316284121">10.1073/pnas.2316284121</a>.
  short: M. Habig, A.V. Grasse, J. Müller, E.H. Stukenbrock, H. Leitner, S. Cremer,
    Proceedings of the National Academy of Sciences of the United States of America
    121 (2024).
corr_author: '1'
date_created: 2023-10-31T13:30:00Z
date_published: 2024-03-12T00:00:00Z
date_updated: 2025-08-05T13:30:51Z
day: '12'
ddc:
- '570'
department:
- _id: SyCr
doi: 10.1073/pnas.2316284121
ec_funded: 1
external_id:
  isi:
  - '001207630200005'
  pmid:
  - '38442176'
file:
- access_level: open_access
  checksum: f5e871db617b682edc71fcd08670dc81
  content_type: application/pdf
  creator: dernst
  date_created: 2024-03-19T09:02:57Z
  date_updated: 2024-03-19T09:02:57Z
  file_id: '15124'
  file_name: 2024_PNAS_Habig.pdf
  file_size: 5750361
  relation: main_file
  success: 1
file_date_updated: 2024-03-19T09:02:57Z
has_accepted_license: '1'
intvolume: '       121'
isi: 1
issue: '11'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2649B4DE-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '771402'
  name: Epidemics in ant societies on a chip
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frequent horizontal chromosome transfer between asexual fungal insect pathogens
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
APC_amount: 3041,76 EUR
OA_place: publisher
OA_type: hybrid
_id: '15083'
abstract:
- lang: eng
  text: 'Direct reciprocity is a powerful mechanism for cooperation in social dilemmas.
    The very logic of reciprocity, however, seems to require that individuals are
    symmetric, and that everyone has the same means to influence each others’ payoffs.
    Yet in many applications, individuals are asymmetric. Herein, we study the effect
    of asymmetry in linear public good games. Individuals may differ in their endowments
    (their ability to contribute to a public good) and in their productivities (how
    effective their contributions are). Given the individuals’ productivities, we
    ask which allocation of endowments is optimal for cooperation. To this end, we
    consider two notions of optimality. The first notion focuses on the resilience
    of cooperation. The respective endowment distribution ensures that full cooperation
    is feasible even under the most adverse conditions. The second notion focuses
    on efficiency. The corresponding endowment distribution maximizes group welfare.
    Using analytical methods, we fully characterize these two endowment distributions.
    This analysis reveals that both optimality notions favor some endowment inequality:
    More productive players ought to get higher endowments. Yet the two notions disagree
    on how unequal endowments are supposed to be. A focus on resilience results in
    less inequality. With additional simulations, we show that the optimal endowment
    allocation needs to account for both the resilience and the efficiency of cooperation.'
acknowledgement: 'This work was supported by the European Research Council CoG 863818
  (ForM-SMArt) (to K.C.) and the European Research Council Starting Grant 850529:
  E-DIRECT (to C.H.), the European Union’s Horizon 2020 research and innovation program
  under the Marie Skłodowska-Curie Grant Agreement #754411 and the French Agence Nationale
  de la Recherche (under the Investissement d’Avenir Programme, ANR-17-EURE-0010)
  (to M.K.).'
article_number: e2315558121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Valentin
  full_name: Hübner, Valentin
  id: 2c8aa207-dc7d-11ea-9b2f-f22972ecd910
  last_name: Hübner
  orcid: 0009-0001-5009-4987
- first_name: Manuel
  full_name: Staab, Manuel
  last_name: Staab
- first_name: Christian
  full_name: Hilbe, Christian
  id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87
  last_name: Hilbe
  orcid: 0000-0001-5116-955X
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Maria
  full_name: Kleshnina, Maria
  last_name: Kleshnina
citation:
  ama: Hübner V, Staab M, Hilbe C, Chatterjee K, Kleshnina M. Efficiency and resilience
    of cooperation in asymmetric social dilemmas. <i>Proceedings of the National Academy
    of Sciences of the United States of America</i>. 2024;121(10). doi:<a href="https://doi.org/10.1073/pnas.2315558121">10.1073/pnas.2315558121</a>
  apa: Hübner, V., Staab, M., Hilbe, C., Chatterjee, K., &#38; Kleshnina, M. (2024).
    Efficiency and resilience of cooperation in asymmetric social dilemmas. <i>Proceedings
    of the National Academy of Sciences of the United States of America</i>. National
    Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2315558121">https://doi.org/10.1073/pnas.2315558121</a>
  chicago: Hübner, Valentin, Manuel Staab, Christian Hilbe, Krishnendu Chatterjee,
    and Maria Kleshnina. “Efficiency and Resilience of Cooperation in Asymmetric Social
    Dilemmas.” <i>Proceedings of the National Academy of Sciences of the United States
    of America</i>. National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2315558121">https://doi.org/10.1073/pnas.2315558121</a>.
  ieee: V. Hübner, M. Staab, C. Hilbe, K. Chatterjee, and M. Kleshnina, “Efficiency
    and resilience of cooperation in asymmetric social dilemmas,” <i>Proceedings of
    the National Academy of Sciences of the United States of America</i>, vol. 121,
    no. 10. National Academy of Sciences, 2024.
  ista: Hübner V, Staab M, Hilbe C, Chatterjee K, Kleshnina M. 2024. Efficiency and
    resilience of cooperation in asymmetric social dilemmas. Proceedings of the National
    Academy of Sciences of the United States of America. 121(10), e2315558121.
  mla: Hübner, Valentin, et al. “Efficiency and Resilience of Cooperation in Asymmetric
    Social Dilemmas.” <i>Proceedings of the National Academy of Sciences of the United
    States of America</i>, vol. 121, no. 10, e2315558121, National Academy of Sciences,
    2024, doi:<a href="https://doi.org/10.1073/pnas.2315558121">10.1073/pnas.2315558121</a>.
  short: V. Hübner, M. Staab, C. Hilbe, K. Chatterjee, M. Kleshnina, Proceedings of
    the National Academy of Sciences of the United States of America 121 (2024).
corr_author: '1'
date_created: 2024-03-05T09:18:49Z
date_published: 2024-03-05T00:00:00Z
date_updated: 2026-04-07T12:30:56Z
day: '05'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1073/pnas.2315558121
ec_funded: 1
external_id:
  isi:
  - '001207786500004'
  pmid:
  - '38408249'
file:
- access_level: open_access
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month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 0599E47C-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '863818'
  name: 'Formal Methods for Stochastic Models: Algorithms and Applications'
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  name: ISTplus - Postdoctoral Fellowships
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
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  issn:
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publication_status: published
publisher: National Academy of Sciences
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    url: https://ista.ac.at/en/news/what-math-tells-us-about-social-dilemmas/
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status: public
title: Efficiency and resilience of cooperation in asymmetric social dilemmas
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volume: 121
year: '2024'
...
---
_id: '15116'
abstract:
- lang: eng
  text: Water is known to play an important role in collagen self-assembly, but it
    is still largely unclear how water–collagen interactions influence the assembly
    process and determine the fibril network properties. Here, we use the H2O/D2O
    isotope effect on the hydrogen-bond strength in water to investigate the role
    of hydration in collagen self-assembly. We dissolve collagen in H2O and D2O and
    compare the growth kinetics and the structure of the collagen assemblies formed
    in these water isotopomers. Surprisingly, collagen assembly occurs ten times faster
    in D2O than in H2O, and collagen in D2O self-assembles into much thinner fibrils,
    that form a more inhomogeneous and softer network, with a fourfold reduction in
    elastic modulus when compared to H2O. Combining spectroscopic measurements with
    atomistic simulations, we show that collagen in D2O is less hydrated than in H2O.
    This partial dehydration lowers the enthalpic penalty for water removal and reorganization
    at the collagen–water interface, increasing the self-assembly rate and the number
    of nucleation centers, leading to thinner fibrils and a softer network. Coarse-grained
    simulations show that the acceleration in the initial nucleation rate can be reproduced
    by the enhancement of electrostatic interactions. These results show that water
    acts as a mediator between collagen monomers, by modulating their interactions
    so as to optimize the assembly process and, thus, the final network properties.
    We believe that isotopically modulating the hydration of proteins can be a valuable
    method to investigate the role of water in protein structural dynamics and protein
    self-assembly.
acknowledgement: We thank Dr. Steven Roeters (Aarhus University), Dr. Federica Burla,
  and Prof. Dr. Mischa Bonn (Institute for Polymer Research, Mainz, Germany) for the
  useful discussions. We thank Dr. Wim Roeterdink and Michiel Hilberts for technical
  support. G.H.K. acknowledges financial support by the “BaSyC Building a Synthetic
  Cell” Gravitation grant (024.003.019) of The Netherlands Ministry of Education,
  Culture and Science (OCW) and The Netherlands Organization for Scientific Research
  and from NWO grant OCENW.GROOT.2019.022. This work has received support from the
  National Research Foundation of Korea (NRF), funded by the Ministry of Science and
  ICT, under Grant No. 2022K1A3A1A04062969. This publication is part of the project
  (with Project Number VI.Veni.212.240) of the research programme NWO Talent Programme
  Veni 2021, which is financed by the Dutch Research Council (NWO). I.M.I. acknowledges
  support from the Sectorplan Bèta & Techniek of the Dutch Government and the Dementia
  Research - Synapsis Foundation Switzerland. A.Š. and K.K. acknowledge support from
  Royal Society and European Research Council Starting Grant. G. Giubertoni kindly
  thanks to the Care4Bones community and the Collagen Café community for reminding
  that we do not own the knowledge we create, but it is, rather, a collective resource
  intended for the advancement of human progress.
article_number: e2313162121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Giulia
  full_name: Giubertoni, Giulia
  last_name: Giubertoni
- first_name: Liru
  full_name: Feng, Liru
  last_name: Feng
- first_name: Kevin
  full_name: Klein, Kevin
  last_name: Klein
- first_name: Guido
  full_name: Giannetti, Guido
  last_name: Giannetti
- first_name: Luco
  full_name: Rutten, Luco
  last_name: Rutten
- first_name: Yeji
  full_name: Choi, Yeji
  last_name: Choi
- first_name: Anouk
  full_name: Van Der Net, Anouk
  last_name: Van Der Net
- first_name: Gerard
  full_name: Castro-Linares, Gerard
  last_name: Castro-Linares
- first_name: Federico
  full_name: Caporaletti, Federico
  last_name: Caporaletti
- first_name: Dimitra
  full_name: Micha, Dimitra
  last_name: Micha
- first_name: Johannes
  full_name: Hunger, Johannes
  last_name: Hunger
- first_name: Antoine
  full_name: Deblais, Antoine
  last_name: Deblais
- first_name: Daniel
  full_name: Bonn, Daniel
  last_name: Bonn
- first_name: Nico
  full_name: Sommerdijk, Nico
  last_name: Sommerdijk
- first_name: Anđela
  full_name: Šarić, Anđela
  id: bf63d406-f056-11eb-b41d-f263a6566d8b
  last_name: Šarić
  orcid: 0000-0002-7854-2139
- first_name: Ioana M.
  full_name: Ilie, Ioana M.
  last_name: Ilie
- first_name: Gijsje H.
  full_name: Koenderink, Gijsje H.
  last_name: Koenderink
- first_name: Sander
  full_name: Woutersen, Sander
  last_name: Woutersen
citation:
  ama: Giubertoni G, Feng L, Klein K, et al. Elucidating the role of water in collagen
    self-assembly by isotopically modulating collagen hydration. <i>Proceedings of
    the National Academy of Sciences of the United States of America</i>. 2024;121(11).
    doi:<a href="https://doi.org/10.1073/pnas.2313162121">10.1073/pnas.2313162121</a>
  apa: Giubertoni, G., Feng, L., Klein, K., Giannetti, G., Rutten, L., Choi, Y., …
    Woutersen, S. (2024). Elucidating the role of water in collagen self-assembly
    by isotopically modulating collagen hydration. <i>Proceedings of the National
    Academy of Sciences of the United States of America</i>. National Academy of Sciences.
    <a href="https://doi.org/10.1073/pnas.2313162121">https://doi.org/10.1073/pnas.2313162121</a>
  chicago: Giubertoni, Giulia, Liru Feng, Kevin Klein, Guido Giannetti, Luco Rutten,
    Yeji Choi, Anouk Van Der Net, et al. “Elucidating the Role of Water in Collagen
    Self-Assembly by Isotopically Modulating Collagen Hydration.” <i>Proceedings of
    the National Academy of Sciences of the United States of America</i>. National
    Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2313162121">https://doi.org/10.1073/pnas.2313162121</a>.
  ieee: G. Giubertoni <i>et al.</i>, “Elucidating the role of water in collagen self-assembly
    by isotopically modulating collagen hydration,” <i>Proceedings of the National
    Academy of Sciences of the United States of America</i>, vol. 121, no. 11. National
    Academy of Sciences, 2024.
  ista: Giubertoni G, Feng L, Klein K, Giannetti G, Rutten L, Choi Y, Van Der Net
    A, Castro-Linares G, Caporaletti F, Micha D, Hunger J, Deblais A, Bonn D, Sommerdijk
    N, Šarić A, Ilie IM, Koenderink GH, Woutersen S. 2024. Elucidating the role of
    water in collagen self-assembly by isotopically modulating collagen hydration.
    Proceedings of the National Academy of Sciences of the United States of America.
    121(11), e2313162121.
  mla: Giubertoni, Giulia, et al. “Elucidating the Role of Water in Collagen Self-Assembly
    by Isotopically Modulating Collagen Hydration.” <i>Proceedings of the National
    Academy of Sciences of the United States of America</i>, vol. 121, no. 11, e2313162121,
    National Academy of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2313162121">10.1073/pnas.2313162121</a>.
  short: G. Giubertoni, L. Feng, K. Klein, G. Giannetti, L. Rutten, Y. Choi, A. Van
    Der Net, G. Castro-Linares, F. Caporaletti, D. Micha, J. Hunger, A. Deblais, D.
    Bonn, N. Sommerdijk, A. Šarić, I.M. Ilie, G.H. Koenderink, S. Woutersen, Proceedings
    of the National Academy of Sciences of the United States of America 121 (2024).
date_created: 2024-03-17T23:00:57Z
date_published: 2024-03-12T00:00:00Z
date_updated: 2025-09-04T13:03:56Z
day: '12'
ddc:
- '550'
department:
- _id: AnSa
doi: 10.1073/pnas.2313162121
external_id:
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  - '001206387400001'
  pmid:
  - '38451946'
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  date_created: 2024-03-19T10:22:42Z
  date_updated: 2024-03-19T10:22:42Z
  file_id: '15125'
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language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
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  issn:
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quality_controlled: '1'
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scopus_import: '1'
status: public
title: Elucidating the role of water in collagen self-assembly by isotopically modulating
  collagen hydration
tmp:
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  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 121
year: '2024'
...
---
APC_amount: 2570,79 EUR
OA_place: publisher
OA_type: hybrid
_id: '17123'
abstract:
- lang: eng
  text: A key feature of many developmental systems is their ability to self-organize
    spatial patterns of functionally distinct cell fates. To ensure proper biological
    function, such patterns must be established reproducibly, by controlling and even
    harnessing intrinsic and extrinsic fluctuations. While the relevant molecular
    processes are increasingly well understood, we lack a principled framework to
    quantify the performance of such stochastic self-organizing systems. To that end,
    we introduce an information-theoretic measure for self-organized fate specification
    during embryonic development. We show that the proposed measure assesses the total
    information content of fate patterns and decomposes it into interpretable contributions
    corresponding to the positional and correlational information. By optimizing the
    proposed measure, our framework provides a normative theory for developmental
    circuits, which we demonstrate on lateral inhibition, cell type proportioning,
    and reaction–diffusion models of self-organization. This paves a way toward a
    classification of developmental systems based on a common information-theoretic
    language, thereby organizing the zoo of implicated chemical and mechanical signaling
    processes.
acknowledgement: We thank Wiktor Młynarski, Juraj Majek, Michal Hledík, Fridtjof Brauns,
  Nikolas Claussen, Benjamin Zoller, Erwin Frey, Thomas Gregor, and Edouard Hannezo
  for inspiring discussions. D.B.B. was supported by the NOMIS foundation as a NOMIS
  Fellow and by an European Molecular Biology Organization (EMBO) Postdoctoral Fellowship
  (ALTF 343-2022). This research was performed in part at the Aspen Center for Physics,
  which is supported by NSF Grant No. PHY-1607611, and Kavli Institute for Theoretical
  Physics (KITP) Santa Barbara, supported by NSF Grant No. PHY-1748958 and the Gordon
  and Betty Moore Foundation Grant No. 2919.02.
article_number: e2322326121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: David
  full_name: Brückner, David
  id: e1e86031-6537-11eb-953a-f7ab92be508d
  last_name: Brückner
  orcid: 0000-0001-7205-2975
- first_name: Gašper
  full_name: Tkačik, Gašper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkačik
  orcid: 0000-0002-6699-1455
citation:
  ama: Brückner D, Tkačik G. Information content and optimization of self-organized
    developmental systems. <i>Proceedings of the National Academy of Sciences of the
    United States of America</i>. 2024;121(23). doi:<a href="https://doi.org/10.1073/pnas.2322326121">10.1073/pnas.2322326121</a>
  apa: Brückner, D., &#38; Tkačik, G. (2024). Information content and optimization
    of self-organized developmental systems. <i>Proceedings of the National Academy
    of Sciences of the United States of America</i>. National Academy of Sciences.
    <a href="https://doi.org/10.1073/pnas.2322326121">https://doi.org/10.1073/pnas.2322326121</a>
  chicago: Brückner, David, and Gašper Tkačik. “Information Content and Optimization
    of Self-Organized Developmental Systems.” <i>Proceedings of the National Academy
    of Sciences of the United States of America</i>. National Academy of Sciences,
    2024. <a href="https://doi.org/10.1073/pnas.2322326121">https://doi.org/10.1073/pnas.2322326121</a>.
  ieee: D. Brückner and G. Tkačik, “Information content and optimization of self-organized
    developmental systems,” <i>Proceedings of the National Academy of Sciences of
    the United States of America</i>, vol. 121, no. 23. National Academy of Sciences,
    2024.
  ista: Brückner D, Tkačik G. 2024. Information content and optimization of self-organized
    developmental systems. Proceedings of the National Academy of Sciences of the
    United States of America. 121(23), e2322326121.
  mla: Brückner, David, and Gašper Tkačik. “Information Content and Optimization of
    Self-Organized Developmental Systems.” <i>Proceedings of the National Academy
    of Sciences of the United States of America</i>, vol. 121, no. 23, e2322326121,
    National Academy of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2322326121">10.1073/pnas.2322326121</a>.
  short: D. Brückner, G. Tkačik, Proceedings of the National Academy of Sciences of
    the United States of America 121 (2024).
corr_author: '1'
date_created: 2024-06-09T22:01:02Z
date_published: 2024-06-04T00:00:00Z
date_updated: 2025-09-08T07:51:01Z
day: '04'
ddc:
- '570'
department:
- _id: EdHa
- _id: GaTk
doi: 10.1073/pnas.2322326121
external_id:
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  - '001244835000006'
  pmid:
  - '38819997'
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intvolume: '       121'
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month: '06'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 34e2a5b5-11ca-11ed-8bc3-b2265616ef0b
  grant_number: ALTF 343-2022
  name: A mechano-chemical theory for stem cell fate decisions in organoid development
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
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    url: https://github.com/dbrueckner/SelforgInformation
  - description: News on the ISTA website
    relation: press_release
    url: https://ista.ac.at/en/news/the-embryo-assembles-itself/
scopus_import: '1'
status: public
title: Information content and optimization of self-organized developmental systems
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type: journal_article
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volume: 121
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...
