---
_id: '15146'
abstract:
- lang: eng
  text: The extracellular matrix (ECM) serves as a scaffold for cells and plays an
    essential role in regulating numerous cellular processes, including cell migration
    and proliferation. Due to limitations in specimen preparation for conventional
    room-temperature electron microscopy, we lack structural knowledge on how ECM
    components are secreted, remodeled, and interact with surrounding cells. We have
    developed a 3D-ECM platform compatible with sample thinning by cryo-focused ion
    beam milling, the lift-out extraction procedure, and cryo-electron tomography.
    Our workflow implements cell-derived matrices (CDMs) grown on EM grids, resulting
    in a versatile tool closely mimicking ECM environments. This allows us to visualize
    ECM for the first time in its hydrated, native context. Our data reveal an intricate
    network of extracellular fibers, their positioning relative to matrix-secreting
    cells, and previously unresolved structural entities. Our workflow and results
    add to the structural atlas of the ECM, providing novel insights into its secretion
    and assembly.
acknowledged_ssus:
- _id: LifeSc
- _id: ScienComp
- _id: EM-Fac
- _id: M-Shop
acknowledgement: "Open Access funding provided by IST Austria. We thank Armel Nicolas
  and his team at the ISTA proteomics facility, Alois Schloegl, Stefano Elefante,
  and colleagues at the ISTA Scientific Computing facility, Tommaso Constanzo and
  Ludek Lovicar at the Electron Microsocpy Facility (EMF), and Thomas Menner at the
  Miba Machine shop for their support. We also thank Wanda Kukulski (University of
  Bern) as well as Darío Porley, Andreas Thader, and other members of the Schur group
  for helpful discussions. Matt Swulius and Jessica Heebner provided great support
  in using Dragonfly. We thank Dorotea Fracciolla (Art & Science) for support in figure
  illustration.\r\n\r\nThis research was supported by the Scientific Service Units
  of ISTA through resources provided by Scientific Computing, the Lab Support Facility,
  and the Electron Microscopy Facility. We acknowledge funding support from the following
  sources: Austrian Science Fund (FWF) grant P33367 (to F.K.M. Schur), the Federation
  of European Biochemical Societies (to F.K.M. Schur), Niederösterreich (NÖ) Fonds
  (to B. Zens), FWF grant E435 (to J.M. Hansen), European Research Council under the
  European Union’s Horizon 2020 research (grant agreement No. 724373) (to M. Sixt),
  and Jenny and Antti Wihuri Foundation (to J. Alanko). This publication has been
  made possible in part by CZI grant DAF2021-234754 and grant DOI https://doi.org/10.37921/812628ebpcwg
  from the Chan Zuckerberg Initiative DAF, an advised fund of Silicon Valley Community
  Foundation (to F.K.M. Schur)."
article_number: e202309125
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Bettina
  full_name: Zens, Bettina
  id: 45FD126C-F248-11E8-B48F-1D18A9856A87
  last_name: Zens
  orcid: 0000-0002-9561-1239
- first_name: Florian
  full_name: Fäßler, Florian
  id: 404F5528-F248-11E8-B48F-1D18A9856A87
  last_name: Fäßler
  orcid: 0000-0001-7149-769X
- first_name: Jesse
  full_name: Hansen, Jesse
  id: 1063c618-6f9b-11ec-9123-f912fccded63
  last_name: Hansen
  orcid: 0000-0001-7967-2085
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Julia
  full_name: Datler, Julia
  id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
  last_name: Datler
  orcid: 0000-0002-3616-8580
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
  orcid: 0000-0003-3904-947X
- first_name: Vanessa
  full_name: Zheden, Vanessa
  id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
  last_name: Zheden
  orcid: 0000-0002-9438-4783
- 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: Florian KM
  full_name: Schur, Florian KM
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
citation:
  ama: Zens B, Fäßler F, Hansen J, et al. Lift-out cryo-FIBSEM and cryo-ET reveal
    the ultrastructural landscape of extracellular matrix. <i>Journal of Cell Biology</i>.
    2024;223(6). doi:<a href="https://doi.org/10.1083/jcb.202309125">10.1083/jcb.202309125</a>
  apa: Zens, B., Fäßler, F., Hansen, J., Hauschild, R., Datler, J., Hodirnau, V.-V.,
    … Schur, F. K. (2024). Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural
    landscape of extracellular matrix. <i>Journal of Cell Biology</i>. Rockefeller
    University Press. <a href="https://doi.org/10.1083/jcb.202309125">https://doi.org/10.1083/jcb.202309125</a>
  chicago: Zens, Bettina, Florian Fäßler, Jesse Hansen, Robert Hauschild, Julia Datler,
    Victor-Valentin Hodirnau, Vanessa Zheden, Jonna H Alanko, Michael K Sixt, and
    Florian KM Schur. “Lift-out Cryo-FIBSEM and Cryo-ET Reveal the Ultrastructural
    Landscape of Extracellular Matrix.” <i>Journal of Cell Biology</i>. Rockefeller
    University Press, 2024. <a href="https://doi.org/10.1083/jcb.202309125">https://doi.org/10.1083/jcb.202309125</a>.
  ieee: B. Zens <i>et al.</i>, “Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural
    landscape of extracellular matrix,” <i>Journal of Cell Biology</i>, vol. 223,
    no. 6. Rockefeller University Press, 2024.
  ista: Zens B, Fäßler F, Hansen J, Hauschild R, Datler J, Hodirnau V-V, Zheden V,
    Alanko JH, Sixt MK, Schur FK. 2024. Lift-out cryo-FIBSEM and cryo-ET reveal the
    ultrastructural landscape of extracellular matrix. Journal of Cell Biology. 223(6),
    e202309125.
  mla: Zens, Bettina, et al. “Lift-out Cryo-FIBSEM and Cryo-ET Reveal the Ultrastructural
    Landscape of Extracellular Matrix.” <i>Journal of Cell Biology</i>, vol. 223,
    no. 6, e202309125, Rockefeller University Press, 2024, doi:<a href="https://doi.org/10.1083/jcb.202309125">10.1083/jcb.202309125</a>.
  short: B. Zens, F. Fäßler, J. Hansen, R. Hauschild, J. Datler, V.-V. Hodirnau, V.
    Zheden, J.H. Alanko, M.K. Sixt, F.K. Schur, Journal of Cell Biology 223 (2024).
corr_author: '1'
date_created: 2024-03-21T06:45:51Z
date_published: 2024-03-20T00:00:00Z
date_updated: 2025-09-04T13:17:16Z
day: '20'
ddc:
- '570'
department:
- _id: FlSc
- _id: MiSi
- _id: Bio
- _id: EM-Fac
doi: 10.1083/jcb.202309125
ec_funded: 1
external_id:
  isi:
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file:
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intvolume: '       223'
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issue: '6'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 9B954C5C-BA93-11EA-9121-9846C619BF3A
  grant_number: P33367
  name: Structure and isoform diversity of the Arp2/3 complex
- _id: 7bd318a1-9f16-11ee-852c-cc9217763180
  grant_number: E435
  name: In Situ Actin Structures via Hybrid Cryo-electron Microscopy
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '724373'
  name: Cellular Navigation Along Spatial Gradients
- _id: 059B463C-7A3F-11EA-A408-12923DDC885E
  name: "NÃ\x96-Fonds Preis fÃ¼r die Jungforscherin des Jahres am IST Austria"
- _id: 2615199A-B435-11E9-9278-68D0E5697425
  grant_number: '21317'
  name: Spatiotemporal regulation of chemokine-induced signalling in leukocyte chemotaxis
- _id: 62909c6f-2b32-11ec-9570-e1476aab5308
  grant_number: CZI01
  name: CryoMinflux-guided in-situ visual proteomics and structure determination
publication: Journal of Cell Biology
publication_identifier:
  eissn:
  - 1540-8140
  issn:
  - 0021-9525
publication_status: published
publisher: Rockefeller University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural landscape of extracellular
  matrix
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 223
year: '2024'
...
---
OA_place: publisher
_id: '18766'
abstract:
- lang: eng
  text: Poxviruses are large pleomorphic double-stranded DNA viruses that include
    well known members such as variola virus, the causative agent of smallpox, Mpox
    virus, as well as Vaccinia virus (VACV), which serves as a vaccination strain
    for formerly mentioned viruses. VACV is a valuable model for studying large pleomorphic
    DNA viruses in general and poxviruses specifically, as many features, such as
    core morphology and structural proteins, are well conserved within this family.
    Despite decades of research, our understanding of the structural components and
    proteins that comprise the poxvirus core in mature virions remains limited. Although
    major core proteins were identified via indirect experimental evidence, the core's
    complexity, with its large size, structure and number of involved proteins, has
    hindered efforts to achieve high-resolution insights and to define the roles of
    the individual proteins. The specific protein composition of the core's individual
    layers, including the palisade layer and the inner core wall, has remained unclear.
    In this study, we have merged multiple approaches, including single particle cryo
    electron microscopy of purified virus cores, cryo-electron tomography and subtomogram
    averaging of mature virions and molecular modeling to elucidate the structural
    determinants of the VACV core. Due to the lack of experimentally derived structures,
    either in situ or reconstituted in vitro, we used Alphafold to predict models
    of the putative major core protein candidates, A10, 23k, A3, A4, and L4. Our results
    show that the VACV core is composed of several layers with varying local symmetries,
    forming more intricate interactions than observed previously. This allowed us
    to identify several molecular building blocks forming the viral core lattice.
    In particular, we identified trimers of protein A10 as a major core structure
    that forms the palisade layer of the viral core. Additionally, we revealed that
    six petals of a flower shaped core pore within the core wall are composed of A10
    trimers. Furthermore, we obtained a cryo-EM density for the inner core wall that
    could potentially accommodate an A3 dimer. Integrating descriptions of protein
    interactions from previous studies enabled us to provide a detailed structural
    model of the poxvirus core wall, and our findings indicate that the interactions
    within A10 trimers are likely consistent across orthopox- and parapoxviruses.
    This combined application of cryo-SPA and cryo-ET can help overcome obstacles
    in studying complex virus structures in the future, including their key assembly
    proteins, interactions, and the formation into a core lattice. Our work provides
    important fundamental new insights into poxvirus core architecture, also considering
    the recent re-emergence of poxviruses.
acknowledged_ssus:
- _id: EM-Fac
- _id: LifeSc
- _id: ScienComp
acknowledgement: "This work was funded by the Austrian Science Fund (FWF) grant P31445
  and ISTA. I\r\nwould like to express my gratitude to the Scientific Service Units,
  particularly the Lab\r\nSupport Facility, the Scientific Computing Facility and
  the Electron Microscopy Facility\r\nfor their tremendous support. I want to especially
  thank Alois for assisting me with the\r\ninstallation of countless new software
  and for troubleshooting cluster issues. A special\r\nthanks goes to Valentin for
  his outstanding support in cryo-EM data acquisition and\r\nhis ongoing help in improving
  the process to ensure that I obtained the best possible\r\ndata from my sample."
alternative_title:
- ISTA thesis
article_processing_charge: No
author:
- first_name: Julia
  full_name: Datler, Julia
  id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
  last_name: Datler
  orcid: 0000-0002-3616-8580
citation:
  ama: Datler J. Elucidating the structural determinants of the poxvirus core using
    multi-modal cryo-EM. 2024. doi:<a href="https://doi.org/10.15479/at:ista:18766">10.15479/at:ista:18766</a>
  apa: Datler, J. (2024). <i>Elucidating the structural determinants of the poxvirus
    core using multi-modal cryo-EM</i>. Institute of Science and Technology Austria.
    <a href="https://doi.org/10.15479/at:ista:18766">https://doi.org/10.15479/at:ista:18766</a>
  chicago: Datler, Julia. “Elucidating the Structural Determinants of the Poxvirus
    Core Using Multi-Modal Cryo-EM.” Institute of Science and Technology Austria,
    2024. <a href="https://doi.org/10.15479/at:ista:18766">https://doi.org/10.15479/at:ista:18766</a>.
  ieee: J. Datler, “Elucidating the structural determinants of the poxvirus core using
    multi-modal cryo-EM,” Institute of Science and Technology Austria, 2024.
  ista: Datler J. 2024. Elucidating the structural determinants of the poxvirus core
    using multi-modal cryo-EM. Institute of Science and Technology Austria.
  mla: Datler, Julia. <i>Elucidating the Structural Determinants of the Poxvirus Core
    Using Multi-Modal Cryo-EM</i>. Institute of Science and Technology Austria, 2024,
    doi:<a href="https://doi.org/10.15479/at:ista:18766">10.15479/at:ista:18766</a>.
  short: J. Datler, Elucidating the Structural Determinants of the Poxvirus Core Using
    Multi-Modal Cryo-EM, Institute of Science and Technology Austria, 2024.
corr_author: '1'
date_created: 2025-01-07T10:23:12Z
date_published: 2024-12-30T00:00:00Z
date_updated: 2026-04-07T12:59:44Z
day: '30'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: FlSc
doi: 10.15479/at:ista:18766
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  date_created: 2025-01-07T12:15:11Z
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file_date_updated: 2025-01-07T12:15:14Z
has_accepted_license: '1'
keyword:
- cryo-EM
- cryo-ET
- cryo-SPA
- Structural Virology
- Poxvirus
- Vaccinia Virus
- Structural Biology
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '12'
oa: 1
oa_version: Published Version
page: '106'
project:
- _id: 26736D6A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P31445
  name: Structural conservation and diversity in retroviral capsid
publication_identifier:
  isbn:
  - 978-3-99078-049-7
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '12334'
    relation: part_of_dissertation
    status: public
  - id: '14979'
    relation: part_of_dissertation
    status: public
status: public
supervisor:
- first_name: Florian KM
  full_name: Schur, Florian KM
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
title: Elucidating the structural determinants of the poxvirus core using multi-modal
  cryo-EM
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: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2024'
...
---
APC_amount: 11700 EUR
OA_place: publisher
OA_type: hybrid
_id: '14979'
abstract:
- lang: eng
  text: Poxviruses are among the largest double-stranded DNA viruses, with members
    such as variola virus, monkeypox virus and the vaccination strain vaccinia virus
    (VACV). Knowledge about the structural proteins that form the viral core has remained
    sparse. While major core proteins have been annotated via indirect experimental
    evidence, their structures have remained elusive and they could not be assigned
    to individual core features. Hence, which proteins constitute which layers of
    the core, such as the palisade layer and the inner core wall, has remained enigmatic.
    Here we show, using a multi-modal cryo-electron microscopy (cryo-EM) approach
    in combination with AlphaFold molecular modeling, that trimers formed by the cleavage
    product of VACV protein A10 are the key component of the palisade layer. This
    allows us to place previously obtained descriptions of protein interactions within
    the core wall into perspective and to provide a detailed model of poxvirus core
    architecture. Importantly, we show that interactions within A10 trimers are likely
    generalizable over members of orthopox- and parapoxviruses.
acknowledged_ssus:
- _id: ScienComp
- _id: LifeSc
- _id: EM-Fac
acknowledgement: "We thank A. Bergthaler (Research Center for Molecular Medicine of
  the Austrian Academy of Sciences) for providing VACV WR. We thank A. Nicholas and
  his team at the ISTA proteomics facility, and S. Elefante at the ISTA Scientific
  Computing facility for their support. We also thank F. Fäßler, D. Porley, T. Muthspiel
  and other members of the Schur group for support and helpful discussions. We also
  thank D. Castaño-Díez for support with Dynamo. We thank D. Farrell for his help
  optimizing the Rosetta protocol to refine the atomic model into the cryo-EM map
  with symmetry.\r\n\r\nF.K.M.S. acknowledges support from ISTA and EMBO. F.K.M.S.
  also received support from the Austrian Science Fund (FWF) grant P31445. This publication
  has been made possible in part by CZI grant DAF2021-234754 and grant https://doi.org/10.37921/812628ebpcwg
  from the Chan Zuckerberg Initiative DAF, an advised fund of Silicon Valley Community
  Foundation (funder https://doi.org/10.13039/100014989) awarded to F.K.M.S.\r\n\r\nThis
  research was also supported by the Scientific Service Units (SSUs) of ISTA through
  resources provided by Scientific Computing (SciComp), the Life Science Facility
  (LSF), and the Electron Microscopy Facility (EMF). We also acknowledge the use of
  COSMIC45 and Colabfold46."
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Julia
  full_name: Datler, Julia
  id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
  last_name: Datler
  orcid: 0000-0002-3616-8580
- first_name: Jesse
  full_name: Hansen, Jesse
  id: 1063c618-6f9b-11ec-9123-f912fccded63
  last_name: Hansen
  orcid: 0000-0001-7967-2085
- first_name: Andreas
  full_name: Thader, Andreas
  id: 3A18A7B8-F248-11E8-B48F-1D18A9856A87
  last_name: Thader
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: Lukas W
  full_name: Bauer, Lukas W
  id: 0c894dcf-897b-11ed-a09c-8186353224b0
  last_name: Bauer
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
  orcid: 0000-0003-3904-947X
- first_name: Florian KM
  full_name: Schur, Florian KM
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
citation:
  ama: Datler J, Hansen J, Thader A, et al. Multi-modal cryo-EM reveals trimers of
    protein A10 to form the palisade layer in poxvirus cores. <i>Nature Structural
    &#38; Molecular Biology</i>. 2024;31:1114-1123. doi:<a href="https://doi.org/10.1038/s41594-023-01201-6">10.1038/s41594-023-01201-6</a>
  apa: Datler, J., Hansen, J., Thader, A., Schlögl, A., Bauer, L. W., Hodirnau, V.-V.,
    &#38; Schur, F. K. (2024). Multi-modal cryo-EM reveals trimers of protein A10
    to form the palisade layer in poxvirus cores. <i>Nature Structural &#38; Molecular
    Biology</i>. Springer Nature. <a href="https://doi.org/10.1038/s41594-023-01201-6">https://doi.org/10.1038/s41594-023-01201-6</a>
  chicago: Datler, Julia, Jesse Hansen, Andreas Thader, Alois Schlögl, Lukas W Bauer,
    Victor-Valentin Hodirnau, and Florian KM Schur. “Multi-Modal Cryo-EM Reveals Trimers
    of Protein A10 to Form the Palisade Layer in Poxvirus Cores.” <i>Nature Structural
    &#38; Molecular Biology</i>. Springer Nature, 2024. <a href="https://doi.org/10.1038/s41594-023-01201-6">https://doi.org/10.1038/s41594-023-01201-6</a>.
  ieee: J. Datler <i>et al.</i>, “Multi-modal cryo-EM reveals trimers of protein A10
    to form the palisade layer in poxvirus cores,” <i>Nature Structural &#38; Molecular
    Biology</i>, vol. 31. Springer Nature, pp. 1114–1123, 2024.
  ista: Datler J, Hansen J, Thader A, Schlögl A, Bauer LW, Hodirnau V-V, Schur FK.
    2024. Multi-modal cryo-EM reveals trimers of protein A10 to form the palisade
    layer in poxvirus cores. Nature Structural &#38; Molecular Biology. 31, 1114–1123.
  mla: Datler, Julia, et al. “Multi-Modal Cryo-EM Reveals Trimers of Protein A10 to
    Form the Palisade Layer in Poxvirus Cores.” <i>Nature Structural &#38; Molecular
    Biology</i>, vol. 31, Springer Nature, 2024, pp. 1114–23, doi:<a href="https://doi.org/10.1038/s41594-023-01201-6">10.1038/s41594-023-01201-6</a>.
  short: J. Datler, J. Hansen, A. Thader, A. Schlögl, L.W. Bauer, V.-V. Hodirnau,
    F.K. Schur, Nature Structural &#38; Molecular Biology 31 (2024) 1114–1123.
corr_author: '1'
date_created: 2024-02-12T09:59:45Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2026-04-07T12:59:44Z
day: '01'
ddc:
- '570'
department:
- _id: FlSc
- _id: ScienComp
- _id: EM-Fac
doi: 10.1038/s41594-023-01201-6
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intvolume: '        31'
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keyword:
- Molecular Biology
- Structural Biology
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 1114-1123
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- _id: 26736D6A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P31445
  name: Structural conservation and diversity in retroviral capsid
publication: Nature Structural & Molecular Biology
publication_identifier:
  eissn:
  - 1545-9985
  issn:
  - 1545-9993
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
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    relation: press_release
    url: https://ista.ac.at/en/news/down-to-the-core-of-poxviruses/
  record:
  - id: '18766'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Multi-modal cryo-EM reveals trimers of protein A10 to form the palisade layer
  in poxvirus cores
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 31
year: '2024'
...
---
_id: '12334'
abstract:
- lang: eng
  text: Regulation of the Arp2/3 complex is required for productive nucleation of
    branched actin networks. An emerging aspect of regulation is the incorporation
    of subunit isoforms into the Arp2/3 complex. Specifically, both ArpC5 subunit
    isoforms, ArpC5 and ArpC5L, have been reported to fine-tune nucleation activity
    and branch junction stability. We have combined reverse genetics and cellular
    structural biology to describe how ArpC5 and ArpC5L differentially affect cell
    migration. Both define the structural stability of ArpC1 in branch junctions and,
    in turn, by determining protrusion characteristics, affect protein dynamics and
    actin network ultrastructure. ArpC5 isoforms also affect the positioning of members
    of the Ena/Vasodilator-stimulated phosphoprotein (VASP) family of actin filament
    elongators, which mediate ArpC5 isoform–specific effects on the actin assembly
    level. Our results suggest that ArpC5 and Ena/VASP proteins are part of a signaling
    pathway enhancing cell migration.</jats:p>
acknowledged_ssus:
- _id: ScienComp
- _id: LifeSc
- _id: Bio
- _id: EM-Fac
acknowledgement: "We would like to thank K. von Peinen and B. Denker (Helmholtz Centre
  for Infection Research, Braunschweig, Germany) for experimental and technical assistance,
  respectively.\r\nThis research was supported by the Scientific Service Units (SSUs)
  of ISTA through resources provided by Scientific Computing (SciComp), the Life Science
  Facility (LSF), the Imaging and Optics facility (IOF), and the Electron Microscopy
  Facility (EMF). We acknowledge support from ISTA and from the Austrian Science Fund
  (FWF) (P33367) to F.K.M.S., from the Research Training Group GRK2223 and the Helmholtz
  Society to K.R,. and from the Deutsche Forschungsgemeinschaft (DFG) to J.F. and
  K.R."
article_number: add6495
article_processing_charge: No
article_type: original
author:
- first_name: Florian
  full_name: Fäßler, Florian
  id: 404F5528-F248-11E8-B48F-1D18A9856A87
  last_name: Fäßler
  orcid: 0000-0001-7149-769X
- first_name: Manjunath
  full_name: Javoor, Manjunath
  id: 305ab18b-dc7d-11ea-9b2f-b58195228ea2
  last_name: Javoor
  orcid: 0000-0003-2311-2112
- first_name: Julia
  full_name: Datler, Julia
  id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
  last_name: Datler
  orcid: 0000-0002-3616-8580
- first_name: Hermann
  full_name: Döring, Hermann
  last_name: Döring
- first_name: Florian
  full_name: Hofer, Florian
  id: b9d234ba-9e33-11ed-95b6-cd561df280e6
  last_name: Hofer
- first_name: Georgi A
  full_name: Dimchev, Georgi A
  id: 38C393BE-F248-11E8-B48F-1D18A9856A87
  last_name: Dimchev
  orcid: 0000-0001-8370-6161
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
  orcid: 0000-0003-3904-947X
- first_name: Jan
  full_name: Faix, Jan
  last_name: Faix
- first_name: Klemens
  full_name: Rottner, Klemens
  last_name: Rottner
- first_name: Florian KM
  full_name: Schur, Florian KM
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
citation:
  ama: Fäßler F, Javoor M, Datler J, et al. ArpC5 isoforms regulate Arp2/3 complex–dependent
    protrusion through differential Ena/VASP positioning. <i>Science Advances</i>.
    2023;9(3). doi:<a href="https://doi.org/10.1126/sciadv.add6495">10.1126/sciadv.add6495</a>
  apa: Fäßler, F., Javoor, M., Datler, J., Döring, H., Hofer, F., Dimchev, G. A.,
    … Schur, F. K. (2023). ArpC5 isoforms regulate Arp2/3 complex–dependent protrusion
    through differential Ena/VASP positioning. <i>Science Advances</i>. American Association
    for the Advancement of Science. <a href="https://doi.org/10.1126/sciadv.add6495">https://doi.org/10.1126/sciadv.add6495</a>
  chicago: Fäßler, Florian, Manjunath Javoor, Julia Datler, Hermann Döring, Florian
    Hofer, Georgi A Dimchev, Victor-Valentin Hodirnau, Jan Faix, Klemens Rottner,
    and Florian KM Schur. “ArpC5 Isoforms Regulate Arp2/3 Complex–Dependent Protrusion
    through Differential Ena/VASP Positioning.” <i>Science Advances</i>. American
    Association for the Advancement of Science, 2023. <a href="https://doi.org/10.1126/sciadv.add6495">https://doi.org/10.1126/sciadv.add6495</a>.
  ieee: F. Fäßler <i>et al.</i>, “ArpC5 isoforms regulate Arp2/3 complex–dependent
    protrusion through differential Ena/VASP positioning,” <i>Science Advances</i>,
    vol. 9, no. 3. American Association for the Advancement of Science, 2023.
  ista: Fäßler F, Javoor M, Datler J, Döring H, Hofer F, Dimchev GA, Hodirnau V-V,
    Faix J, Rottner K, Schur FK. 2023. ArpC5 isoforms regulate Arp2/3 complex–dependent
    protrusion through differential Ena/VASP positioning. Science Advances. 9(3),
    add6495.
  mla: Fäßler, Florian, et al. “ArpC5 Isoforms Regulate Arp2/3 Complex–Dependent Protrusion
    through Differential Ena/VASP Positioning.” <i>Science Advances</i>, vol. 9, no.
    3, add6495, American Association for the Advancement of Science, 2023, doi:<a
    href="https://doi.org/10.1126/sciadv.add6495">10.1126/sciadv.add6495</a>.
  short: F. Fäßler, M. Javoor, J. Datler, H. Döring, F. Hofer, G.A. Dimchev, V.-V.
    Hodirnau, J. Faix, K. Rottner, F.K. Schur, Science Advances 9 (2023).
corr_author: '1'
date_created: 2023-01-23T07:26:42Z
date_published: 2023-01-20T00:00:00Z
date_updated: 2026-04-07T12:59:44Z
day: '20'
ddc:
- '570'
department:
- _id: FlSc
- _id: EM-Fac
doi: 10.1126/sciadv.add6495
external_id:
  isi:
  - '000964550100015'
  pmid:
  - '36662867'
file:
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  checksum: ce81a6d0b84170e5e8c62f6acfa15d9e
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  date_created: 2023-01-23T07:45:54Z
  date_updated: 2023-01-23T07:45:54Z
  file_id: '12335'
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  success: 1
file_date_updated: 2023-01-23T07:45:54Z
has_accepted_license: '1'
intvolume: '         9'
isi: 1
issue: '3'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 9B954C5C-BA93-11EA-9121-9846C619BF3A
  grant_number: P33367
  name: Structure and isoform diversity of the Arp2/3 complex
publication: Science Advances
publication_identifier:
  issn:
  - 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
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  - id: '14562'
    relation: research_data
    status: public
  - id: '18766'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: ArpC5 isoforms regulate Arp2/3 complex–dependent protrusion through differential
  Ena/VASP positioning
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: 9
year: '2023'
...
