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Article

Synthesis of the stationary-phase sigma factor sigma s is positively regulated by ppGpp.

Journal of bacteriology - 1 Dec 1993

Gentry D R, Hernandez V J, Nguyen L H, Jensen D B, Cashel M

Abstract excerpt

Strains of Escherichia coli which lack detectable guanosine 3',5'-bispyrophosphate (ppGpp) display a pleiotropic phenotype that in some respects resembles that of rpoS (katF) mutants. This led us to examine whether ppGpp is a positive regulator of sigma s synthesis. sigma s is a stationary-phase-specific sigma factor that is encoded by the rpoS gene. We found that a ppGpp-deficient strain is defective in sigma s...

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Identifiers

PMID: 8253685
DOI: 10.1128/jb.175.24.7982-7989.1993
PMCID: PMC206978

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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