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Article

A mutation that enhances synthesis of sigma 32 and suppresses temperature-sensitive growth of the rpoH15 mutant of Escherichia coli.

Journal of bacteriology - 1 Apr 1990

Yano R, Nagai H, Shiba K, Yura T

Abstract excerpt

The rpoH15 mutant cannot grow at or above 34 degrees C, because it produces an altered sigma 32 protein that is largely deficient in the transcription of the heat shock genes. Extragenic suppressor mutations (suhB) located at 55 min on the Escherichia coli chromosome endowed the mutant cell with the ability to grow at 40 degrees C and the inability to grow at 25 degrees C. One such mutation (suhB2), studied in...

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Identifiers

PMID: 2138605
DOI: 10.1128/jb.172.4.2124-2130.1990
PMCID: PMC208712

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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.

Related research

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Research trail→

Click a neighbor to travelStep 1 · 12 closest

A mutation that enhances synthesis of sigma 32 and suppresses temperature-sensitive growth of the rpoH15 mutant of Escherichia coli.PMID 2138605Read ↗

A mutant sigma 32 with a small deletion in conserved region 3 of sigma has reduced affinity for core RNA polymerase.Semantic proximity Read ↗

Rhizobium meliloti suhR suppresses the phenotype of an Escherichia coli RNA polymerase sigma 32 mutant.Semantic proximity Read ↗

Activity of Rhodobacter sphaeroides RpoHII, a second member of the heat shock sigma factor family.Semantic proximity Read ↗

Multiple regions on the Escherichia coli heat shock transcription factor sigma32 determine core RNA polymerase binding specificity.Semantic proximity Read ↗

Metabolic roles of a Rhodobacter sphaeroides member of the sigma32 family.Semantic proximity Read ↗

Identification of the heat-shock sigma factor RpoH and a second RpoH-like protein in Sinorhizobium meliloti.Semantic proximity Read ↗

Translational induction of heat shock transcription factor sigma32: evidence for a built-in RNA thermosensor.Semantic proximity Read ↗

The rpoE gene encoding the sigma E (sigma 24) heat shock sigma factor of Escherichia coli.Semantic proximity Read ↗

RNA polymerase beta mutations have reduced sigma70 synthesis leading to a hyper-temperature-sensitive phenotype of a sigma70 mutant.Semantic proximity Read ↗

Mutations in STS1 suppress the defect in 3' mRNA processing caused by the rna15-2 mutation in Saccharomyces cerevisiae.Semantic proximity Read ↗

A new Escherichia coli heat shock gene, htrC, whose product is essential for viability only at high temperatures.Semantic proximity Read ↗

Derivatives of the yeast mitochondrial ribosomal protein MrpS28 replace ribosomal protein S15 as functional components of the Escherichia coli ribosome.Semantic proximity Read ↗

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