---
_id: '11373'
abstract:
- lang: eng
  text: The actin-homologue FtsA is essential for E. coli cell division, as it links
    FtsZ filaments in the Z-ring to transmembrane proteins. FtsA is thought to initiate
    cell constriction by switching from an inactive polymeric to an active monomeric
    conformation, which recruits downstream proteins and stabilizes the Z-ring. However,
    direct biochemical evidence for this mechanism is missing. Here, we use reconstitution
    experiments and quantitative fluorescence microscopy to study divisome activation
    in vitro. By comparing wild-type FtsA with FtsA R286W, we find that this hyperactive
    mutant outperforms FtsA WT in replicating FtsZ treadmilling dynamics, FtsZ filament
    stabilization and recruitment of FtsN. We could attribute these differences to
    a faster exchange and denser packing of FtsA R286W below FtsZ filaments. Using
    FRET microscopy, we also find that FtsN binding promotes FtsA self-interaction.
    We propose that in the active divisome FtsA and FtsN exist as a dynamic copolymer
    that follows treadmilling filaments of FtsZ.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
acknowledgement: We acknowledge members of the Loose laboratory at IST Austria for
  helpful discussions—in particular L. Lindorfer for his assistance with cloning and
  purifications. We thank J. Löwe and T. Nierhaus (MRC-LMB Cambridge, UK) for sharing
  unpublished work and helpful discussions, as well as D. Vavylonis and D. Rutkowski
  (Lehigh University, Bethlehem, PA, USA) and S. Martin (University of Lausanne, Switzerland)
  for sharing their code for FRAP analysis. We are also thankful for the support by
  the Scientific Service Units (SSU) of IST Austria through resources provided by
  the Imaging and Optics Facility (IOF) and the Lab Support Facility (LSF). This work
  was supported by the European Research Council through grant ERC 2015-StG-679239
  and by the Austrian Science Fund (FWF) StandAlone P34607 to M.L. and HFSP LT 000824/2016-L4
  to N.B. For the purpose of open access, we have applied a CC BY public copyright
  licence to any Author Accepted Manuscript version arising from this submission.
article_number: '2635'
article_processing_charge: No
article_type: original
author:
- first_name: Philipp
  full_name: Radler, Philipp
  id: 40136C2A-F248-11E8-B48F-1D18A9856A87
  last_name: Radler
  orcid: '0000-0001-9198-2182 '
- first_name: Natalia S.
  full_name: Baranova, Natalia S.
  id: 38661662-F248-11E8-B48F-1D18A9856A87
  last_name: Baranova
  orcid: 0000-0002-3086-9124
- first_name: Paulo R
  full_name: Dos Santos Caldas, Paulo R
  id: 38FCDB4C-F248-11E8-B48F-1D18A9856A87
  last_name: Dos Santos Caldas
  orcid: 0000-0001-6730-4461
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Maria D
  full_name: Lopez Pelegrin, Maria D
  id: 319AA9CE-F248-11E8-B48F-1D18A9856A87
  last_name: Lopez Pelegrin
- first_name: David
  full_name: Michalik, David
  id: B9577E20-AA38-11E9-AC9A-0930E6697425
  last_name: Michalik
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
citation:
  ama: Radler P, Baranova NS, Dos Santos Caldas PR, et al. In vitro reconstitution
    of Escherichia coli divisome activation. <i>Nature Communications</i>. 2022;13.
    doi:<a href="https://doi.org/10.1038/s41467-022-30301-y">10.1038/s41467-022-30301-y</a>
  apa: Radler, P., Baranova, N. S., Dos Santos Caldas, P. R., Sommer, C. M., Lopez
    Pelegrin, M. D., Michalik, D., &#38; Loose, M. (2022). In vitro reconstitution
    of Escherichia coli divisome activation. <i>Nature Communications</i>. Springer
    Nature. <a href="https://doi.org/10.1038/s41467-022-30301-y">https://doi.org/10.1038/s41467-022-30301-y</a>
  chicago: Radler, Philipp, Natalia S. Baranova, Paulo R Dos Santos Caldas, Christoph
    M Sommer, Maria D Lopez Pelegrin, David Michalik, and Martin Loose. “In Vitro
    Reconstitution of Escherichia Coli Divisome Activation.” <i>Nature Communications</i>.
    Springer Nature, 2022. <a href="https://doi.org/10.1038/s41467-022-30301-y">https://doi.org/10.1038/s41467-022-30301-y</a>.
  ieee: P. Radler <i>et al.</i>, “In vitro reconstitution of Escherichia coli divisome
    activation,” <i>Nature Communications</i>, vol. 13. Springer Nature, 2022.
  ista: Radler P, Baranova NS, Dos Santos Caldas PR, Sommer CM, Lopez Pelegrin MD,
    Michalik D, Loose M. 2022. In vitro reconstitution of Escherichia coli divisome
    activation. Nature Communications. 13, 2635.
  mla: Radler, Philipp, et al. “In Vitro Reconstitution of Escherichia Coli Divisome
    Activation.” <i>Nature Communications</i>, vol. 13, 2635, Springer Nature, 2022,
    doi:<a href="https://doi.org/10.1038/s41467-022-30301-y">10.1038/s41467-022-30301-y</a>.
  short: P. Radler, N.S. Baranova, P.R. Dos Santos Caldas, C.M. Sommer, M.D. Lopez
    Pelegrin, D. Michalik, M. Loose, Nature Communications 13 (2022).
corr_author: '1'
date_created: 2022-05-13T09:06:28Z
date_published: 2022-05-12T00:00:00Z
date_updated: 2026-04-29T22:30:27Z
day: '12'
ddc:
- '570'
department:
- _id: MaLo
doi: 10.1038/s41467-022-30301-y
ec_funded: 1
external_id:
  isi:
  - '000795171100037'
file:
- access_level: open_access
  checksum: 5af863ee1b95a0710f6ee864d68dc7a6
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  creator: dernst
  date_created: 2022-05-13T09:10:51Z
  date_updated: 2022-05-13T09:10:51Z
  file_id: '11374'
  file_name: 2022_NatureCommunications_Radler.pdf
  file_size: 6945191
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  success: 1
file_date_updated: 2022-05-13T09:10:51Z
has_accepted_license: '1'
intvolume: '        13'
isi: 1
keyword:
- General Physics and Astronomy
- General Biochemistry
- Genetics and Molecular Biology
- General Chemistry
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: 2595697A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '679239'
  name: Self-Organization of the Bacterial Cell
- _id: fc38323b-9c52-11eb-aca3-ff8afb4a011d
  grant_number: P34607
  name: In vitro reconstitution of bacterial cell division
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
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    url: https://doi.org/10.1038/s41467-022-34485-1
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scopus_import: '1'
status: public
title: In vitro reconstitution of Escherichia coli divisome activation
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 13
year: '2022'
...
---
_id: '9414'
abstract:
- lang: eng
  text: Microtubule plus-end depolymerization rate is a potentially important target
    of physiological regulation, but it has been challenging to measure, so its role
    in spatial organization is poorly understood. Here we apply a method for tracking
    plus ends based on time difference imaging to measure depolymerization rates in
    large interphase asters growing in Xenopus egg extract. We observed strong spatial
    regulation of depolymerization rates, which were higher in the aster interior
    compared with the periphery, and much less regulation of polymerization or catastrophe
    rates. We interpret these data in terms of a limiting component model, where aster
    growth results in lower levels of soluble tubulin and microtubule-associated proteins
    (MAPs) in the interior cytosol compared with that at the periphery. The steady-state
    polymer fraction of tubulin was ∼30%, so tubulin is not strongly depleted in the
    aster interior. We propose that the limiting component for microtubule assembly
    is a MAP that inhibits depolymerization, and that egg asters are tuned to low
    microtubule density.
acknowledgement: The authors thank the members of Mitchison, Brugués, and Jay Gatlin
  groups (University of Wyoming) for discussions. We thank Heino Andreas (MPI-CBG)
  for frog maintenance. We thank Nikon for microscopy support at Marine Biological
  Laboratory (MBL). K.I. was supported by fellowships from the Honjo International
  Scholarship Foundation and Center of Systems Biology Dresden. F.D. was supported
  by the DIGGS-BB fellowship provided by the German Research Foundation (DFG). P.C.
  is supported by a Boehringer Ingelheim Fonds PhD fellowship. J.F.P. was supported
  by a fellowship from the Fannie and John Hertz Foundation. M.L.’s research is supported
  by European Research Council (ERC) Grant no. ERC-2015-StG-679239. J.B.’s research
  is supported by the Human Frontiers Science Program (CDA00074/2014). T.J.M.’s research
  is supported by National Institutes of Health Grant no. R35GM131753.
article_processing_charge: No
article_type: original
author:
- first_name: Keisuke
  full_name: Ishihara, Keisuke
  last_name: Ishihara
- first_name: Franziska
  full_name: Decker, Franziska
  last_name: Decker
- first_name: Paulo R
  full_name: Dos Santos Caldas, Paulo R
  id: 38FCDB4C-F248-11E8-B48F-1D18A9856A87
  last_name: Dos Santos Caldas
  orcid: 0000-0001-6730-4461
- first_name: James F.
  full_name: Pelletier, James F.
  last_name: Pelletier
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
- first_name: Jan
  full_name: Brugués, Jan
  last_name: Brugués
- first_name: Timothy J.
  full_name: Mitchison, Timothy J.
  last_name: Mitchison
citation:
  ama: Ishihara K, Decker F, Dos Santos Caldas PR, et al. Spatial variation of microtubule
    depolymerization in large asters. <i>Molecular Biology of the Cell</i>. 2021;32(9):869-879.
    doi:<a href="https://doi.org/10.1091/MBC.E20-11-0723">10.1091/MBC.E20-11-0723</a>
  apa: Ishihara, K., Decker, F., Dos Santos Caldas, P. R., Pelletier, J. F., Loose,
    M., Brugués, J., &#38; Mitchison, T. J. (2021). Spatial variation of microtubule
    depolymerization in large asters. <i>Molecular Biology of the Cell</i>. American
    Society for Cell Biology. <a href="https://doi.org/10.1091/MBC.E20-11-0723">https://doi.org/10.1091/MBC.E20-11-0723</a>
  chicago: Ishihara, Keisuke, Franziska Decker, Paulo R Dos Santos Caldas, James F.
    Pelletier, Martin Loose, Jan Brugués, and Timothy J. Mitchison. “Spatial Variation
    of Microtubule Depolymerization in Large Asters.” <i>Molecular Biology of the
    Cell</i>. American Society for Cell Biology, 2021. <a href="https://doi.org/10.1091/MBC.E20-11-0723">https://doi.org/10.1091/MBC.E20-11-0723</a>.
  ieee: K. Ishihara <i>et al.</i>, “Spatial variation of microtubule depolymerization
    in large asters,” <i>Molecular Biology of the Cell</i>, vol. 32, no. 9. American
    Society for Cell Biology, pp. 869–879, 2021.
  ista: Ishihara K, Decker F, Dos Santos Caldas PR, Pelletier JF, Loose M, Brugués
    J, Mitchison TJ. 2021. Spatial variation of microtubule depolymerization in large
    asters. Molecular Biology of the Cell. 32(9), 869–879.
  mla: Ishihara, Keisuke, et al. “Spatial Variation of Microtubule Depolymerization
    in Large Asters.” <i>Molecular Biology of the Cell</i>, vol. 32, no. 9, American
    Society for Cell Biology, 2021, pp. 869–79, doi:<a href="https://doi.org/10.1091/MBC.E20-11-0723">10.1091/MBC.E20-11-0723</a>.
  short: K. Ishihara, F. Decker, P.R. Dos Santos Caldas, J.F. Pelletier, M. Loose,
    J. Brugués, T.J. Mitchison, Molecular Biology of the Cell 32 (2021) 869–879.
date_created: 2021-05-23T22:01:45Z
date_published: 2021-04-19T00:00:00Z
date_updated: 2025-04-14T07:21:30Z
day: '19'
department:
- _id: MaLo
doi: 10.1091/MBC.E20-11-0723
ec_funded: 1
external_id:
  isi:
  - '000641574700005'
  pmid:
  - '33439671'
intvolume: '        32'
isi: 1
issue: '9'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/3.0/
main_file_link:
- open_access: '1'
  url: https://www.molbiolcell.org/doi/10.1091/mbc.E20-11-0723
month: '04'
oa: 1
oa_version: Published Version
page: 869-879
pmid: 1
project:
- _id: 2595697A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '679239'
  name: Self-Organization of the Bacterial Cell
- _id: 260D98C8-B435-11E9-9278-68D0E5697425
  name: Reconstitution of Bacterial Cell Division Using Purified Components
publication: Molecular Biology of the Cell
publication_identifier:
  eissn:
  - 1939-4586
  issn:
  - 1059-1524
publication_status: published
publisher: American Society for Cell Biology
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spatial variation of microtubule depolymerization in large asters
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/3.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA
    3.0)
  short: CC BY-NC-SA (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2021'
...
---
OA_place: publisher
_id: '8358'
abstract:
- lang: eng
  text: "During bacterial cell division, the tubulin-homolog FtsZ forms a ring-like
    structure at the center of the cell. This so-called Z-ring acts as a scaffold
    recruiting several division-related proteins to mid-cell and plays a key role
    in distributing proteins at the division site, a feature driven by the treadmilling
    motion of FtsZ filaments around the septum. What regulates the architecture, dynamics
    and stability of the Z-ring is still poorly understood, but FtsZ-associated proteins
    (Zaps) are known to play an important role. \r\nAdvances in fluorescence microscopy
    and in vitro reconstitution experiments have helped to shed light into some of
    the dynamic properties of these complex systems, but methods that allow to collect
    and analyze large quantitative data sets of the underlying polymer dynamics are
    still missing.\r\nHere, using an in vitro reconstitution approach, we studied
    how different Zaps affect FtsZ filament dynamics and organization into large-scale
    patterns, giving special emphasis to the role of the well-conserved protein ZapA.
    For this purpose, we use high-resolution fluorescence microscopy combined with
    novel image analysis workfows to study pattern organization and polymerization
    dynamics of active filaments. We quantified the influence of Zaps on FtsZ on three
    diferent spatial scales: the large-scale organization of the membrane-bound filament
    network, the underlying\r\npolymerization dynamics and the behavior of single
    molecules.\r\nWe found that ZapA cooperatively increases the spatial order of
    the filament network, binds only transiently to FtsZ filaments and has no effect
    on filament length and treadmilling velocity. Our data provides a model for how
    FtsZ-associated proteins can increase the precision and stability of the bacterial
    cell division machinery in a\r\nswitch-like manner, without compromising filament
    dynamics. Furthermore, we believe that our automated quantitative methods can
    be used to analyze a large variety of dynamic cytoskeletal systems, using standard
    time-lapse\r\nmovies of homogeneously labeled proteins obtained from experiments
    in vitro or even inside the living cell.\r\n"
acknowledged_ssus:
- _id: Bio
acknowledgement: I should also express my gratitude to the bioimaging facility at
  IST Austria, for their assistance with the TIRF setup over the years, and especially
  to Christoph Sommer, who gave me a lot of input when I was starting to dive into
  programming.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Paulo R
  full_name: Dos Santos Caldas, Paulo R
  id: 38FCDB4C-F248-11E8-B48F-1D18A9856A87
  last_name: Dos Santos Caldas
  orcid: 0000-0001-6730-4461
citation:
  ama: Dos Santos Caldas PR. Organization and dynamics of treadmilling filaments in
    cytoskeletal networks of FtsZ and its crosslinkers. 2020. doi:<a href="https://doi.org/10.15479/AT:ISTA:8358">10.15479/AT:ISTA:8358</a>
  apa: Dos Santos Caldas, P. R. (2020). <i>Organization and dynamics of treadmilling
    filaments in cytoskeletal networks of FtsZ and its crosslinkers</i>. Institute
    of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:8358">https://doi.org/10.15479/AT:ISTA:8358</a>
  chicago: Dos Santos Caldas, Paulo R. “Organization and Dynamics of Treadmilling
    Filaments in Cytoskeletal Networks of FtsZ and Its Crosslinkers.” Institute of
    Science and Technology Austria, 2020. <a href="https://doi.org/10.15479/AT:ISTA:8358">https://doi.org/10.15479/AT:ISTA:8358</a>.
  ieee: P. R. Dos Santos Caldas, “Organization and dynamics of treadmilling filaments
    in cytoskeletal networks of FtsZ and its crosslinkers,” Institute of Science and
    Technology Austria, 2020.
  ista: Dos Santos Caldas PR. 2020. Organization and dynamics of treadmilling filaments
    in cytoskeletal networks of FtsZ and its crosslinkers. Institute of Science and
    Technology Austria.
  mla: Dos Santos Caldas, Paulo R. <i>Organization and Dynamics of Treadmilling Filaments
    in Cytoskeletal Networks of FtsZ and Its Crosslinkers</i>. Institute of Science
    and Technology Austria, 2020, doi:<a href="https://doi.org/10.15479/AT:ISTA:8358">10.15479/AT:ISTA:8358</a>.
  short: P.R. Dos Santos Caldas, Organization and Dynamics of Treadmilling Filaments
    in Cytoskeletal Networks of FtsZ and Its Crosslinkers, Institute of Science and
    Technology Austria, 2020.
corr_author: '1'
date_created: 2020-09-10T09:26:49Z
date_published: 2020-09-10T00:00:00Z
date_updated: 2026-04-08T07:26:30Z
day: '10'
ddc:
- '572'
degree_awarded: PhD
department:
- _id: MaLo
doi: 10.15479/AT:ISTA:8358
file:
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  checksum: 882f93fe9c351962120e2669b84bf088
  content_type: application/pdf
  creator: pcaldas
  date_created: 2020-09-10T12:11:29Z
  date_updated: 2020-09-10T12:11:29Z
  file_id: '8364'
  file_name: phd_thesis_pcaldas.pdf
  file_size: 141602462
  relation: main_file
  success: 1
- access_level: closed
  checksum: 70cc9e399c4e41e6e6ac445ae55e8558
  content_type: application/x-zip-compressed
  creator: pcaldas
  date_created: 2020-09-10T12:18:17Z
  date_updated: 2020-09-11T07:48:10Z
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file_date_updated: 2020-09-11T07:48:10Z
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language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '135'
publication_identifier:
  isbn:
  - 978-3-99078-009-1
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '7197'
    relation: part_of_dissertation
    status: public
  - id: '7572'
    relation: dissertation_contains
    status: public
status: public
supervisor:
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
title: Organization and dynamics of treadmilling filaments in cytoskeletal networks
  of FtsZ and its crosslinkers
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: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2020'
...
---
_id: '7572'
abstract:
- lang: eng
  text: The polymerization–depolymerization dynamics of cytoskeletal proteins play
    essential roles in the self-organization of cytoskeletal structures, in eukaryotic
    as well as prokaryotic cells. While advances in fluorescence microscopy and in
    vitro reconstitution experiments have helped to study the dynamic properties of
    these complex systems, methods that allow to collect and analyze large quantitative
    datasets of the underlying polymer dynamics are still missing. Here, we present
    a novel image analysis workflow to study polymerization dynamics of active filaments
    in a nonbiased, highly automated manner. Using treadmilling filaments of the bacterial
    tubulin FtsZ as an example, we demonstrate that our method is able to specifically
    detect, track and analyze growth and shrinkage of polymers, even in dense networks
    of filaments. We believe that this automated method can facilitate the analysis
    of a large variety of dynamic cytoskeletal systems, using standard time-lapse
    movies obtained from experiments in vitro as well as in the living cell. Moreover,
    we provide scripts implementing this method as supplementary material.
alternative_title:
- Methods in Cell Biology
article_processing_charge: No
author:
- first_name: Paulo R
  full_name: Dos Santos Caldas, Paulo R
  id: 38FCDB4C-F248-11E8-B48F-1D18A9856A87
  last_name: Dos Santos Caldas
  orcid: 0000-0001-6730-4461
- first_name: Philipp
  full_name: Radler, Philipp
  id: 40136C2A-F248-11E8-B48F-1D18A9856A87
  last_name: Radler
  orcid: '0000-0001-9198-2182 '
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
citation:
  ama: 'Dos Santos Caldas PR, Radler P, Sommer CM, Loose M. Computational analysis
    of filament polymerization dynamics in cytoskeletal networks. In: Tran P, ed.
    <i>Methods in Cell Biology</i>. Vol 158. Elsevier; 2020:145-161. doi:<a href="https://doi.org/10.1016/bs.mcb.2020.01.006">10.1016/bs.mcb.2020.01.006</a>'
  apa: Dos Santos Caldas, P. R., Radler, P., Sommer, C. M., &#38; Loose, M. (2020).
    Computational analysis of filament polymerization dynamics in cytoskeletal networks.
    In P. Tran (Ed.), <i>Methods in Cell Biology</i> (Vol. 158, pp. 145–161). Elsevier.
    <a href="https://doi.org/10.1016/bs.mcb.2020.01.006">https://doi.org/10.1016/bs.mcb.2020.01.006</a>
  chicago: Dos Santos Caldas, Paulo R, Philipp Radler, Christoph M Sommer, and Martin
    Loose. “Computational Analysis of Filament Polymerization Dynamics in Cytoskeletal
    Networks.” In <i>Methods in Cell Biology</i>, edited by Phong  Tran, 158:145–61.
    Elsevier, 2020. <a href="https://doi.org/10.1016/bs.mcb.2020.01.006">https://doi.org/10.1016/bs.mcb.2020.01.006</a>.
  ieee: P. R. Dos Santos Caldas, P. Radler, C. M. Sommer, and M. Loose, “Computational
    analysis of filament polymerization dynamics in cytoskeletal networks,” in <i>Methods
    in Cell Biology</i>, vol. 158, P. Tran, Ed. Elsevier, 2020, pp. 145–161.
  ista: 'Dos Santos Caldas PR, Radler P, Sommer CM, Loose M. 2020.Computational analysis
    of filament polymerization dynamics in cytoskeletal networks. In: Methods in Cell
    Biology. Methods in Cell Biology, vol. 158, 145–161.'
  mla: Dos Santos Caldas, Paulo R., et al. “Computational Analysis of Filament Polymerization
    Dynamics in Cytoskeletal Networks.” <i>Methods in Cell Biology</i>, edited by
    Phong  Tran, vol. 158, Elsevier, 2020, pp. 145–61, doi:<a href="https://doi.org/10.1016/bs.mcb.2020.01.006">10.1016/bs.mcb.2020.01.006</a>.
  short: P.R. Dos Santos Caldas, P. Radler, C.M. Sommer, M. Loose, in:, P. Tran (Ed.),
    Methods in Cell Biology, Elsevier, 2020, pp. 145–161.
date_created: 2020-03-08T23:00:47Z
date_published: 2020-02-27T00:00:00Z
date_updated: 2026-04-08T07:26:30Z
day: '27'
department:
- _id: MaLo
doi: 10.1016/bs.mcb.2020.01.006
ec_funded: 1
editor:
- first_name: 'Phong '
  full_name: 'Tran, Phong '
  last_name: Tran
external_id:
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intvolume: '       158'
isi: 1
language:
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main_file_link:
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  url: https://doi.org/10.1101/839571
month: '02'
oa: 1
oa_version: Preprint
page: 145-161
project:
- _id: 2595697A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '679239'
  name: Self-Organization of the Bacterial Cell
- _id: 260D98C8-B435-11E9-9278-68D0E5697425
  name: Reconstitution of Bacterial Cell Division Using Purified Components
publication: Methods in Cell Biology
publication_identifier:
  issn:
  - 0091-679X
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  record:
  - id: '8358'
    relation: part_of_dissertation
    status: public
scopus_import: '1'
status: public
title: Computational analysis of filament polymerization dynamics in cytoskeletal
  networks
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 158
year: '2020'
...
---
_id: '7197'
abstract:
- lang: eng
  text: During bacterial cell division, the tubulin-homolog FtsZ forms a ring-like
    structure at the center of the cell. This Z-ring not only organizes the division
    machinery, but treadmilling of FtsZ filaments was also found to play a key role
    in distributing proteins at the division site. What regulates the architecture,
    dynamics and stability of the Z-ring is currently unknown, but FtsZ-associated
    proteins are known to play an important role. Here, using an in vitro reconstitution
    approach, we studied how the well-conserved protein ZapA affects FtsZ treadmilling
    and filament organization into large-scale patterns. Using high-resolution fluorescence
    microscopy and quantitative image analysis, we found that ZapA cooperatively increases
    the spatial order of the filament network, but binds only transiently to FtsZ
    filaments and has no effect on filament length and treadmilling velocity. Together,
    our data provides a model for how FtsZ-associated proteins can increase the precision
    and stability of the bacterial cell division machinery in a switch-like manner.
acknowledged_ssus:
- _id: LifeSc
- _id: Bio
article_number: '5744'
article_processing_charge: No
article_type: original
author:
- first_name: Paulo R
  full_name: Dos Santos Caldas, Paulo R
  id: 38FCDB4C-F248-11E8-B48F-1D18A9856A87
  last_name: Dos Santos Caldas
  orcid: 0000-0001-6730-4461
- first_name: Maria D
  full_name: Lopez Pelegrin, Maria D
  id: 319AA9CE-F248-11E8-B48F-1D18A9856A87
  last_name: Lopez Pelegrin
- first_name: Daniel J. G.
  full_name: Pearce, Daniel J. G.
  last_name: Pearce
- first_name: Nazmi B
  full_name: Budanur, Nazmi B
  id: 3EA1010E-F248-11E8-B48F-1D18A9856A87
  last_name: Budanur
  orcid: 0000-0003-0423-5010
- first_name: Jan
  full_name: Brugués, Jan
  last_name: Brugués
- first_name: Martin
  full_name: Loose, Martin
  id: 462D4284-F248-11E8-B48F-1D18A9856A87
  last_name: Loose
  orcid: 0000-0001-7309-9724
citation:
  ama: Dos Santos Caldas PR, Lopez Pelegrin MD, Pearce DJG, Budanur NB, Brugués J,
    Loose M. Cooperative ordering of treadmilling filaments in cytoskeletal networks
    of FtsZ and its crosslinker ZapA. <i>Nature Communications</i>. 2019;10. doi:<a
    href="https://doi.org/10.1038/s41467-019-13702-4">10.1038/s41467-019-13702-4</a>
  apa: Dos Santos Caldas, P. R., Lopez Pelegrin, M. D., Pearce, D. J. G., Budanur,
    N. B., Brugués, J., &#38; Loose, M. (2019). Cooperative ordering of treadmilling
    filaments in cytoskeletal networks of FtsZ and its crosslinker ZapA. <i>Nature
    Communications</i>. Springer Nature. <a href="https://doi.org/10.1038/s41467-019-13702-4">https://doi.org/10.1038/s41467-019-13702-4</a>
  chicago: Dos Santos Caldas, Paulo R, Maria D Lopez Pelegrin, Daniel J. G. Pearce,
    Nazmi B Budanur, Jan Brugués, and Martin Loose. “Cooperative Ordering of Treadmilling
    Filaments in Cytoskeletal Networks of FtsZ and Its Crosslinker ZapA.” <i>Nature
    Communications</i>. Springer Nature, 2019. <a href="https://doi.org/10.1038/s41467-019-13702-4">https://doi.org/10.1038/s41467-019-13702-4</a>.
  ieee: P. R. Dos Santos Caldas, M. D. Lopez Pelegrin, D. J. G. Pearce, N. B. Budanur,
    J. Brugués, and M. Loose, “Cooperative ordering of treadmilling filaments in cytoskeletal
    networks of FtsZ and its crosslinker ZapA,” <i>Nature Communications</i>, vol.
    10. Springer Nature, 2019.
  ista: Dos Santos Caldas PR, Lopez Pelegrin MD, Pearce DJG, Budanur NB, Brugués J,
    Loose M. 2019. Cooperative ordering of treadmilling filaments in cytoskeletal
    networks of FtsZ and its crosslinker ZapA. Nature Communications. 10, 5744.
  mla: Dos Santos Caldas, Paulo R., et al. “Cooperative Ordering of Treadmilling Filaments
    in Cytoskeletal Networks of FtsZ and Its Crosslinker ZapA.” <i>Nature Communications</i>,
    vol. 10, 5744, Springer Nature, 2019, doi:<a href="https://doi.org/10.1038/s41467-019-13702-4">10.1038/s41467-019-13702-4</a>.
  short: P.R. Dos Santos Caldas, M.D. Lopez Pelegrin, D.J.G. Pearce, N.B. Budanur,
    J. Brugués, M. Loose, Nature Communications 10 (2019).
corr_author: '1'
date_created: 2019-12-20T12:22:57Z
date_published: 2019-12-17T00:00:00Z
date_updated: 2026-04-08T07:26:30Z
day: '17'
ddc:
- '570'
department:
- _id: MaLo
- _id: BjHo
doi: 10.1038/s41467-019-13702-4
ec_funded: 1
external_id:
  isi:
  - '000503009300001'
file:
- access_level: open_access
  checksum: a1b44b427ba341383197790d0e8789fa
  content_type: application/pdf
  creator: dernst
  date_created: 2019-12-23T07:34:56Z
  date_updated: 2020-07-14T12:47:53Z
  file_id: '7208'
  file_name: 2019_NatureComm_Caldas.pdf
  file_size: 8488733
  relation: main_file
file_date_updated: 2020-07-14T12:47:53Z
has_accepted_license: '1'
intvolume: '        10'
isi: 1
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 2595697A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '679239'
  name: Self-Organization of the Bacterial Cell
- _id: 260D98C8-B435-11E9-9278-68D0E5697425
  name: Reconstitution of Bacterial Cell Division Using Purified Components
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '8358'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Cooperative ordering of treadmilling filaments in cytoskeletal networks of
  FtsZ and its crosslinker ZapA
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 10
year: '2019'
...
