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Article

How Escherichia coli sets different basal levels in SOS operons.

Biochimie - 1 Jan 2000

Huisman O, D'Ari R, Casaregola S

Abstract excerpt

The recA and sfiA genes of Escherichia coli are SOS operons regulated negatively by the LexA repressor. The steady state level of expression of recA is 10-fold higher than that of sfiA, as measured by means of recA::lac and sfiA::lac operon fusions. To study the molecular basis of this difference, we have compared the expression of these two operons in strains in which the concentration of LexA repressor was...

Topics

Bacterial Proteins
DNA Repair
Escherichia coli
Genes
Genes, Bacterial
Genotype
Lac Operon
Mutation
Operon
Rec A Recombinases
Repressor Proteins
Serine Endopeptidases

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 6814518
DOI: 10.1016/s0300-9084(82)80115-6

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 29 Aug 2026. Prepared record publication-6814518-2026-08-29.1. Manifest publication-graph-cohort-2026-08-29.1.

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

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