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Article

Oxygen-mediated regulation of porphobilinogen formation in Rhodobacter capsulatus.

Journal of bacteriology - 1 Mar 2002

Biel Alan J, Canada Keith, Huang David, Indest Karl, Sullivan Karen

Abstract excerpt

A Rhodobacter capsulatus hemC mutant has been isolated and used to show that oxygen regulates the intracellular levels of porphobilinogen. Experiments using a hemB-cat gene fusion demonstrated that oxygen does not transcriptionally regulate hemB transcription. Porphobilinogen synthase activity is not regulated by oxygen nor is the enzyme feedback inhibited by hemin or protoporphyrin IX. It was demonstrated that...

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Identifiers

PMID: 11872720
DOI: 10.1128/JB.184.6.1685-1692.2002
PMCID: PMC134899

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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