Evidence map›Paper›PMID 26075961›Full record

ArticleMolecular microbiology2015

Transcriptional regulation of the Chlamydia heat shock stress response in an intracellular infection.

Brett R Hanson, Ming Tan

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. A conservedMicrobiology (Reading, England) · 2025
    Article
  6. Article
  7. Requirement of GrgA forbioRxiv : the preprint server for biology · 2023
    Article
  8. Article
  9. Article
  10. Robust Heat Shock Response inFrontiers in microbiology · 2021
    Article
  11. Article
  12. The Repressor Function of theJournal of bacteriology · 2020
    Article
  13. Protein aggregation in bacteria.FEMS microbiology reviews · 2020
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
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.

Brett R HansonDepartment of Microbiology and Molecular Genetics, University of California, Irvine, CA, USA.
Ming TanDepartment of Microbiology and Molecular Genetics, University of California, Irvine, CA, USA.
University of California, Irvine · US

Funding

The Regulation of gene expression in ChlamydiaR01AI044198 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI TAN, MING · 1999 to 2021
$7.1M
Mechanisms of temporal gene regulation in ChlamydiaR56AI044198 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI TAN, MING · 2010 to 2010
$383k
Regulation of late genes and the transcriptional repressor protein EUO in ChlamydF32AI108097 · NIAID · UNIVERSITY OF CALIFORNIA-IRVINE · PI HANSON, BRETT · 2014 to 2015
$106k
NIAID NIH HHS AI44198NIAID NIH HHS F32 AI108097NIAID NIH HHS F32-AI108097NIAID NIH HHS R01 AI044198NIAID NIH HHS R56 AI044198
6 · The paper itself

Abstract

Bacteria encode heat shock proteins that aid in survival during stressful growth conditions. In addition, the major heat shock proteins of the intracellular bacterium Chlamydia trachomatis have been associated with immune pathology and disease. We developed a ChIP-qPCR method to study the regulation of chlamydial heat shock gene regulation during an intracellular infection. This approach allowed us to show that chlamydial heat shock genes are regulated by the transcription factor HrcA within an infected cell, providing validation for previous in vitro findings. Induction of chlamydial heat shock gene expression by elevated temperature was due to loss of HrcA binding to heat shock promoters, supporting a mechanism of derepression. This heat shock response was rapid, whereas recovery of HrcA binding and return to non-stress transcript levels occurred more slowly. We also found that control of heat shock gene expression was differentially regulated over the course of the intracellular Chlamydia infection. There was evidence of HrcA-mediated regulation of heat shock genes throughout the chlamydial developmental cycle, but the level of repression was lower at early times. This is the first study of Chlamydia-infected cells showing the effect of an environmental signal on transcription factor-DNA binding and target gene expression in the bacterium.

Indexed as

Gene Expression Regulation, BacterialHeat-Shock ResponseAnimalsBacterial ProteinsChlamydia InfectionsChlamydia trachomatisFibroblastsMiceTranscription FactorsBacterial ProteinsTranscription Factors

Identifiers

PMID26075961
PMCPMC4813507
OpenAlexW2127607770

What OpenQuestion holds

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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.