Evidence map›Paper›PMID 21947079›Full record

ArticleNature cell biology2011

BAP31 and BiP are essential for dislocation of SV40 from the endoplasmic reticulum to the cytosol.

Roger Geiger, Daniel Andritschke, Sarah Friebe, Fabian Herzog, Stefania Luisoni, Thomas Heger, Ari Helenius

Abstract read
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In one paragraph

Article in Nature cell biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 106 papers.

0numbers the graph read from it
0cells of the map it votes in
106citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

106 citing papers in PubMed, 157 citations in OpenAlex.

  1. Article
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  4. Viral interference of nucleocytoplasmic transport.The Journal of biological chemistry · 2025
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  19. Viruses Hijack ERAD to Regulate Their Replication and Propagation.International journal of molecular sciences · 2022
    Review
  20. Article

46 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Roger GeigerInstitute of Biochemistry, ETH Zurich, Schafmattstrasse 18, CH-8093 Zurich, Switzerland.
Daniel Andritschke
Sarah Friebe
Fabian Herzog
Stefania Luisoni
Thomas Heger
Ari Helenius
University of Zurich · CHETH Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

How non-enveloped viruses overcome host cell membranes is poorly understood. Here, we show that after endocytosis and transport to the endoplasmic reticulum (ER), but before crossing the ER membrane to the cytosol, incoming simian virus 40 particles are structurally remodelled leading to exposure of the amino-terminal sequence of the minor viral protein VP2. These hydrophobic sequences anchor the virus to membranes. A negatively charged residue, Glu 17, in the α-helical, membrane-embedded peptide is essential for infection, most likely by introducing an 'irregularity' recognized by the ER-associated degradation (ERAD) system for membrane proteins. Using a siRNA-mediated screen, the lumenal chaperone BiP and the ER-membrane protein BAP31 (both involved in ERAD) were identified as being essential for infection. They co-localized with the virus in discrete foci and promoted its ER-to-cytosol dislocation. Virus-like particles devoid of VP2 failed to cross the membrane. The results demonstrated that ERAD-factors assist virus transport across the ER membrane.

Indexed as

Virus AttachmentCapsid ProteinsCytosolEndoplasmic ReticulumEndoplasmic Reticulum-Associated DegradationEndoplasmic Reticulum Chaperone BiPGlutamic AcidHeat-Shock ProteinsHeLa CellsHumansHydrophobic and Hydrophilic InteractionsIntracellular MembranesLiposomesMembrane ProteinsProtein Structure, SecondaryProtein Structure, TertiaryBCAP31 protein, humanCapsid ProteinsEndoplasmic Reticulum Chaperone BiPGlutamic AcidHeat-Shock ProteinsLiposomesMembrane ProteinsRecombinant Fusion ProteinsVP1 protein, polyomavirusVp2 protein, simian virus 40

Identifiers

PMID21947079
OpenAlexW2042885556

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.