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Article

Accumulation of protoporphyrin IX in light-sensitive mutants of Escherichia coli.

FEBS letters - 5 Oct 1992

Miyamoto K, Nishimura K, Masuda T, Tsuji H, Inokuchi H

Abstract excerpt

The accumulation of protoporphyrin IX (Proto IX) in light-sensitive mutants of Escherichia coli was detected by spectrofluorimetry. Fluorescence emission and excitation spectra were recorded from extracts of bacterial cells. Proto IX clearly accumulated in cells with mutations in the visA (hemH) gene but not in the wild-type strain CA274 or in visA mutants that had been rendered light-resistant by introduction of...

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PMID: 1397280
DOI: 10.1016/0014-5793(92)81341-i

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

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Related research

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Accumulation of protoporphyrin IX in light-sensitive mutants of Escherichia coli.PMID 1397280Read ↗

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Lethality of visible light for Escherichia coli hemH1 mutants influence of defects in DNA repair.Semantic proximity Read ↗

Isolation and characterization of visible light-sensitive mutants of Escherichia coli K12.Semantic proximity Read ↗

Isolation and characterization of a cDNA from soybean and its homolog from Escherichia coli, which both complement the light sensitivity of Escherichia coli hemH mutant strain VS101.Semantic proximity Read ↗

Oxidation of protoporphyrinogen IX in Escherichia coli is mediated by the aerobic coproporphyrinogen oxidase.Semantic proximity Read ↗

Partial inhibition of protein synthesis accelerates the synthesis of porphyrin in heme-deficient mutants of Escherichia coli.Semantic proximity Read ↗

The induction of two biosynthetic enzymes helps Escherichia coli sustain heme synthesis and activate catalase during hydrogen peroxide stress.Semantic proximity Read ↗

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