Evidence map›Paper›PMID 17881435›Full record

ArticleJournal of virology2007

A chaperone-activated nonenveloped virus perforates the physiologically relevant endoplasmic reticulum membrane.

Emily K Rainey-Barger, Brian Magnuson, Billy Tsai

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2007. 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
2.6field-weighted citation impact, top 10% 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, 82 citations in OpenAlex.

  1. Review
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  7. Nuclear Cytoskeleton in Virus Infection.International journal of molecular sciences · 2022
    Review
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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

3 authors at 1 institution in 1 country.

Emily K Rainey-BargerDepartment of Cell and Developmental Biology, University of Michigan Medical School, 109 Zina Pitcher Place, Rm. 3043, Ann Arbor, MI 48109, USA.
Brian Magnuson
Billy Tsai
University of Michigan–Ann Arbor · US

Funding

Transport of polyomavirus across the ER membraneR01AI064296 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TSAI, BILLY · 2006 to 2021
$5.5M
NIAID NIH HHS R01 AI064296NIAID NIH HHS R01-AI064296
6 · The paper itself

Abstract

The nonenveloped polyomavirus (Py) traffics from the plasma membrane to the endoplasmic reticulum (ER), where it penetrates the ER membrane, allowing the viral genome to reach the nucleus to cause infection. The mechanism of membrane penetration for Py, and for other nonenveloped viruses, remains poorly characterized. We showed previously that the ER chaperone ERp29 alters the conformation of Py coat protein VP1, enabling the virus to interact with membranes. Here, we developed a membrane perforation assay and showed that the ERp29-activated Py perforates the physiologically relevant ER membrane, an event that likely initiates viral penetration. Biochemical analysis revealed that the internal protein VP2 is exposed in the activated viral particle. Accordingly, we demonstrate that VP2 binds to, integrates into, and perforates the ER membrane; the other internal protein, VP3, binds to and integrates into the ER membrane but is not sufficient for perforation. Our data thus link the activity of a cellular factor on a nonenveloped virus to the membrane perforation event and identify a viral component that mediates this process.

Indexed as

Virus InternalizationCapsid ProteinsCell LineEndoplasmic ReticulumHeat-Shock ProteinsHumansIntracellular MembranesPolyomavirusCapsid ProteinsERP29 protein, humanHeat-Shock ProteinsVP2 protein, Polyomavirus

Identifiers

PMID17881435
PMCPMC2169125
OpenAlexW2132191241

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.