Evidence map›Paper›PMID 21159867›Full record

ArticleJournal of virology2011

A PDI family network acts distinctly and coordinately with ERp29 to facilitate polyomavirus infection.

Christopher P Walczak, Billy Tsai

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

67 citing papers in PubMed, 97 citations in OpenAlex.

  1. Article
  2. Viral interference of nucleocytoplasmic transport.The Journal of biological chemistry · 2025
    Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Viruses Hijack ERAD to Regulate Their Replication and Propagation.International journal of molecular sciences · 2022
    Review
  13. Article
  14. Review
  15. Review
  16. Vascular thiol isomerases in thrombosis: The yin and yang.Journal of thrombosis and haemostasis : JTH · 2020
    Review
  17. Review
  18. Review
  19. Review
  20. Article

7 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

2 authors at 1 institution in 1 country.

Christopher P WalczakDepartment of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
Billy Tsai
University of Michigan–Ann Arbor · US

Funding

CELLULAR AND MOLECULAR BIOLOGY AT MICHIGANT32GM007315 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PUTHENVEEDU, MANOJKUMAR A · 1985 to 2021
$12.8M
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 AI064296NIGMS NIH HHS T32 GM007315
6 · The paper itself

Abstract

Endoplasmic reticulum (ER)-to-cytosol membrane transport is a decisive infection step for the murine polyomavirus (Py). We previously determined that ERp29, a protein disulfide isomerase (PDI) member, extrudes the Py VP1 C-terminal arm to initiate ER membrane penetration. This reaction requires disruption of Py's disulfide bonds. Here, we found that the PDI family members ERp57, PDI, and ERp72 facilitate virus infection. However, while all three proteins disrupt Py's disulfide bonds in vitro, only ERp57 and PDI operate in concert with ERp29 to unfold the VP1 C-terminal arm. An alkylated Py cannot stimulate infection, implying a pivotal role of viral free cysteines during infection. Consistent with this, we found that although PDI and ERp72 reduce Py, ERp57 principally isomerizes the virus in vitro, a reaction that requires viral free cysteines. Our mutagenesis study subsequently identified VP1 C11 and C15 as important for infection, suggesting a role for these residues during isomerization. C11 and C15 also act together to stabilize interpentamer interactions for a subset of the virus pentamers, likely because some of these residues form interpentamer disulfide bonds. This study reveals how a PDI family functions coordinately and distinctly to promote Py infection and pinpoints a role of viral cysteines in this process.

Indexed as

AnimalsEndoplasmic ReticulumHeat-Shock ProteinsMembrane GlycoproteinsMiceNIH 3T3 CellsPolyomavirusPolyomavirus InfectionsProtein Disulfide-Isomerasesendoplasmic reticulum glycoprotein p72ERP29 protein, humanHeat-Shock ProteinsMembrane GlycoproteinsPDIA3 protein, humanProtein Disulfide-Isomerases

Identifiers

PMID21159867
PMCPMC3067762
OpenAlexW2123697811

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.