ArticleNature chemical biology2018
In vivo chloride concentrations surge to proteotoxic levels during acid stress.
Article in Nature chemical biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
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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.
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.
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Who cites it
13 citing papers in PubMed, 21 citations in OpenAlex.
- Activation of the Spx redox sensor counters cysteine-driven Fe(II) depletion under disulfide stress.bioRxiv : the preprint server for biology · 2025Article
- In vitro release kinetics of bioactive compounds (gallic acid, ellagic acid, and eugenol) from chitosan polymer and the bioactivity of herb-loaded chitosan-CuO nanocomposites.Scientific reports · 2025Article
- Escherichia coli type I toxin TisB exclusively controls proton depolarization following antibiotic induced DNA damage.Scientific reports · 2025Article
- Systematic conformation-to-phenotype mapping via limited deep sequencing of proteins.Molecular cell · 2023Article
- Article
- The Donnan potential revealed.Nature communications · 2022Article
- Detection of key sites of dimer dissociation and unfolding initiation during activation of acid-stress chaperone HdeA at low pH.Biochimica et biophysica acta. Proteins and proteomics · 2021Article
- Stress-Responsive Periplasmic Chaperones in Bacteria.Frontiers in molecular biosciences · 2021Review
- Comparative Review of the Responses ofGenes · 2020Review
- Phase separation by ssDNA binding protein controlled via protein-protein and protein-DNA interactions.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Protein aggregation in bacteria.FEMS microbiology reviews · 2020Review
- Protein quality control: from mechanism to disease : EMBO Workshop, Costa de la Calma (Mallorca), Spain, April 28 - May 03, 2019.Cell stress & chaperones · 2019Article
- Compartmentalizing acid stress in bacteria.Nature chemical biology · 2018Article
Corrections and comments
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
Abstract
To successfully colonize the intestine, bacteria must survive passage through the stomach. The permeability of the outer membrane renders the periplasm of Gram-negative bacteria vulnerable to stomach acid, which inactivates proteins. Here we report that the semipermeable nature of the outer membrane allows the development of a strong Donnan equilibrium across this barrier at low pH. As a result, when bacteria are exposed to conditions that mimic gastric juice, periplasmic chloride concentrations rise to levels that exceed 0.6 M. At these chloride concentrations, proteins readily aggregate in vitro. The acid sensitivity of strains lacking acid-protective chaperones is enhanced by chloride, suggesting that these chaperones protect periplasmic proteins both from acidification and from the accompanying accumulation of chloride. These results illustrate how organisms have evolved chaperones to respond to the substantial chemical threat imposed by otherwise innocuous chloride concentrations that are amplified to proteotoxic levels by low-pH-induced Donnan equilibrium effects.
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Registered trials
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.