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Article

RpoS- and OxyR-independent induction of HPI catalase at stationary phase in Escherichia coli and identification of rpoS mutations in common laboratory strains.

Journal of bacteriology - 1 Jul 1997

Visick J E, Clarke S

Abstract excerpt

A rapid spectrophotometric assay to determine the activities of HPI and HPII catalases in Escherichia coli extracts has been developed. This assay is based upon the differential heat stabilities of the two enzymes and offers significant advantages over previous methods for quantitation of their activities. Measurement of catalase activities in extracts of various mutant strains confirmed the ability of this...

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Identifiers

PMID: 9209028
DOI: 10.1128/jb.179.13.4158-4163.1997
PMCID: PMC179234

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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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