Evidence map›Paper›PMID 34166616›Full record

ArticleCell2021

PspA adopts an ESCRT-III-like fold and remodels bacterial membranes.

Benedikt Junglas, Stefan T Huber, Thomas Heidler, Lukas Schlösser, Daniel Mann, Raoul Hennig, Mairi Clarke, Nadja Hellmann, Dirk Schneider, Carsten Sachse

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
0.4field-weighted citation impact, top 39% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

52 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. VIA1 is a conserved regulator of thylakoid membrane integrity that acts through VIPP1.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Membrane interaction of cyanobacterial and chloroplast ESCRT-III proteins.The Plant journal : for cell and molecular biology · 2026
    Review
  6. Capsule and PspA Cooperatively Confer Resistance ofInternational journal of molecular sciences · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. The bacterial ESCRT-III PspA rods thin lipid tubules and increase membrane curvature through helix α0 interactions.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Review
  16. Article
  17. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 1 country.

Benedikt JunglasErnst-Ruska Centre for Microscopy and Spectroscopy with Electrons, ER-C-3/Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany; JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany; Department of Chemistry, Biochemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany.
Stefan T HuberEuropean Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Meyerhofstraße 1, 69117 Heidelberg, Germany.
Thomas HeidlerErnst-Ruska Centre for Microscopy and Spectroscopy with Electrons, ER-C-3/Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany; JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany.
Lukas SchlösserDepartment of Chemistry, Biochemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany.
Daniel MannErnst-Ruska Centre for Microscopy and Spectroscopy with Electrons, ER-C-3/Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany; JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany.
Raoul HennigDepartment of Chemistry, Biochemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany.
Mairi ClarkeEuropean Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Meyerhofstraße 1, 69117 Heidelberg, Germany.
Nadja HellmannDepartment of Chemistry, Biochemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany.
Dirk SchneiderDepartment of Chemistry, Biochemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany; Institute of Molecular Physiology, Johannes Gutenberg University Mainz, 55128 Mainz, Germany. Electronic address: dirk.schneider@uni-mainz.de.
Carsten SachseErnst-Ruska Centre for Microscopy and Spectroscopy with Electrons, ER-C-3/Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany; JuStruct: Jülich Center for Structural Biology, Forschungszentrum Jülich, 52425 Jülich, Germany; Department of Biology, Heinrich Heine University, Universitätsstr. 1, 40225 Düsseldorf, Germany. Electronic address: c.sachse@fz-juelich.de.
Forschungszentrum Jülich · DEJohannes Gutenberg University Mainz · DEErnst Ruska Centre · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PspA is the main effector of the phage shock protein (Psp) system and preserves the bacterial inner membrane integrity and function. Here, we present the 3.6 Å resolution cryoelectron microscopy (cryo-EM) structure of PspA assembled in helical rods. PspA monomers adopt a canonical ESCRT-III fold in an extended open conformation. PspA rods are capable of enclosing lipids and generating positive membrane curvature. Using cryo-EM, we visualized how PspA remodels membrane vesicles into μm-sized structures and how it mediates the formation of internalized vesicular structures. Hotspots of these activities are zones derived from PspA assemblies, serving as lipid transfer platforms and linking previously separated lipid structures. These membrane fusion and fission activities are in line with the described functional properties of bacterial PspA/IM30/LiaH proteins. Our structural and functional analyses reveal that bacterial PspA belongs to the evolutionary ancestry of ESCRT-III proteins involved in membrane remodeling.

Indexed as

Amino Acid SequenceBacterial ProteinsCell MembraneCryoelectron MicroscopyEndocytosisEndosomal Sorting Complexes Required for TransportEscherichia coliHeat-Shock ProteinsLipid BilayersModels, MolecularProtein DomainsProtein Structure, SecondarySequence Homology, Amino AcidUnilamellar LiposomesBacterial ProteinsEndosomal Sorting Complexes Required for TransportHeat-Shock ProteinsLipid Bilayersphage shock protein, BacteriaUnilamellar Liposomescryo-EMcryo-ETESCRT-IIIhelical reconstructionIM30membrane fissionmembrane fusionmembrane remodelingmembrane tubulationPspAVipp1

Identifiers

PMID34166616
OpenAlexW3087961564

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.