Evidence map›Paper›PMID 22876181›Full record

ArticlePLoS pathogens2012

CPAF: a Chlamydial protease in search of an authentic substrate.

Allan L Chen, Kirsten A Johnson, Jennifer K Lee, Christine Sütterlin, Ming Tan

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
12.3field-weighted citation impact, top 1% 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

68 citing papers in PubMed, 116 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Tail-specific protease is an essentialInfection and immunity · 2024
    Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Molecular pathogenesis ofFrontiers in cellular and infection microbiology · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Bioprospecting by Phage Display of Mimetic Peptides ofInfection and drug resistance · 2022
    Article
  18. Article
  19. Review
  20. A Novel Cleavage Pattern of Complement C5 Induced byFrontiers in cellular and infection microbiology · 2021
    Article

8 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

5 authors at 1 institution in 1 country.

Allan L ChenDepartment of Microbiology and Molecular Genetics, University of California at Irvine, Irvine, California, USA.
Kirsten A Johnson
Jennifer K Lee
Christine Sütterlin
Ming Tan
University of California, Irvine · US

Funding

CARCINOGENESIST32CA009054 · NCI · UNIVERSITY OF CALIFORNIA-IRVINE · PI EDINGER, AIMEE L, FRUMAN, DAVID ALEXANDER · 1985 to 2025
$8.6M
Mechanism of Chlamydia-induced centrosome amplificationR21AI083851 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI SUETTERLIN, CHRISTINE, TAN, MING · 2009 to 2010
$404k
NCI NIH HHS T32 CA009054NCI NIH HHS T32CA009054NIAID NIH HHS AI083851NIAID NIH HHS R21 AI083851
6 · The paper itself

Abstract

Bacteria in the genus Chlamydia are major human pathogens that cause an intracellular infection. A chlamydial protease, CPAF, has been proposed as an important virulence factor that cleaves or degrades at least 16 host proteins, thereby altering multiple cellular processes. We examined 11 published CPAF substrates and found that there was no detectable proteolysis when CPAF activity was inhibited during cell processing. We show that the reported proteolysis of these putative CPAF substrates was due to enzymatic activity in cell lysates rather than in intact cells. Nevertheless, Chlamydia-infected cells displayed Chlamydia-host interactions, such as Golgi reorganization, apoptosis resistance, and host cytoskeletal remodeling, that have been attributed to CPAF-dependent proteolysis of host proteins. Our findings suggest that other mechanisms may be responsible for these Chlamydia-host interactions, and raise concerns about all published CPAF substrates and the proposed roles of CPAF in chlamydial pathogenesis.

Indexed as

Host-Pathogen InteractionsApoptosisBacterial ProteinsChlamydia InfectionsChlamydia trachomatisEndopeptidasesGolgi ApparatusHeLa CellsHumansProteolysisSubstrate SpecificityBacterial ProteinsCPA factorEndopeptidases

Identifiers

PMID22876181
PMCPMC3410858
OpenAlexW2086787888

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.