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Article

Involvement of gamma-glutamyl peptides in osmoadaptation of Escherichia coli.

Journal of bacteriology - 1 Jul 1990

McLaggan D, Logan T M, Lynn D G, Epstein W

Abstract excerpt

Accumulation of K+ ions and glutamate plays a primary role in maintaining osmotic balance in Escherichia coli, as illustrated by the high concentrations of these ions present in cells growing in medium of high osmolality. We found that two gamma-glutamyl peptides and glutamine also accumulated during growth at high osmolarity. In a mutant unable to make trehalose growing in 1.3 osM medium, glutathione,...

Topics

Chromatography, High Pressure Liquid
Culture Media
Dipeptides
Escherichia coli
Glutamates
Glutamic Acid
Glutamine
Glutathione
Kinetics
Magnetic Resonance Spectroscopy
Mass Spectrometry

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Mutation

Osmolar Concentration

Potassium

Source

Open in PubMed Open full text

Identifiers

PMID: 1972940
DOI: 10.1128/jb.172.7.3631-3636.1990
PMCID: PMC213336

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-1972940-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

Source receipt: PubMed via Helena Literature Corpus, retrieved 29 Aug 2026.

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