Evidence map›Paper›PMID 19013278›Full record

ArticleCell2008

Bleach activates a redox-regulated chaperone by oxidative protein unfolding.

J Winter, M Ilbert, P C F Graf, D Ozcelik, U Jakob

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 174 papers.

0numbers the graph read from it
0cells of the map it votes in
174citing papers in PubMed
7.6field-weighted citation impact, top 2% 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

174 citing papers in PubMed, 395 citations in OpenAlex.

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  5. ZnbioRxiv : the preprint server for biology · 2026
    Article
  6. Factors governing the response ofFrontiers in cellular and infection microbiology · 2026
    Review
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114 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.

J WinterDepartment of Molecular, University of Michigan, Ann Arbor, MI 48109, USA.
M Ilbert
P C F Graf
D Ozcelik
U Jakob
University of Michigan–Ann Arbor · US

Funding

Functional Analysis of the Intrinsically Disordered Chaperone Hsp33R01GM065318 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI JAKOB, URSULA H. · 2003 to 2015
$3.9M
NIGMS NIH HHS GM065318NIGMS NIH HHS R01 GM065318
6 · The paper itself

Abstract

Hypochlorous acid (HOCl), the active ingredient in household bleach, is an effective antimicrobial produced by the mammalian host defense to kill invading microorganisms. Despite the widespread use of HOCl, surprisingly little is known about its mode of action. In this study, we demonstrate that low molar ratios of HOCl to protein cause oxidative protein unfolding in vitro and target thermolabile proteins for irreversible aggregation in vivo. As a defense mechanism, bacteria use the redox-regulated chaperone Hsp33, which responds to bleach treatment with the reversible oxidative unfolding of its C-terminal redox switch domain. HOCl-mediated unfolding turns inactive Hsp33 into a highly active chaperone holdase, which protects essential Escherichia coli proteins against HOCl-induced aggregation and increases bacterial HOCl resistance. Our results substantially improve our molecular understanding about HOCl's functional mechanism. They suggest that the antimicrobial effects of bleach are largely based on HOCl's ability to cause aggregation of essential bacterial proteins.

Indexed as

Oxidation-ReductionDisulfidesEscherichia coliEscherichia coli ProteinsHeat-Shock ProteinsHypochlorous AcidModels, BiologicalMolecular ChaperonesMolecular ConformationOxygenProtein DenaturationProtein Structure, TertiaryReactive Oxygen SpeciesSubstrate SpecificitySulfhydryl CompoundsTemperatureDisulfidesEscherichia coli ProteinsHeat-Shock ProteinsHSP33 protein, E coliHypochlorous AcidMolecular ChaperonesOxygenReactive Oxygen SpeciesSulfhydryl Compounds

Identifiers

PMID19013278
PMCPMC2606091
OpenAlexW2133827033

What OpenQuestion holds

Textmetadata
LicenceTDM
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.