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Article

MarR-type transcriptional regulator ChlR activates expression of tetrapyrrole biosynthesis genes in response to low-oxygen conditions in cyanobacteria.

The Journal of biological chemistry - 13 Apr 2012

Aoki Rina, Takeda Tomoya, Omata Tatsuo, Ihara Kunio, Fujita Yuichi

Abstract excerpt

Oxygen is required for three enzyme reactions in chlorophyll and bilin biosynthesis pathways: coproporphyrinogen III oxidase (HemF), heme oxygenase (HO1), and Mg-protoporphyrin IX monomethylester cyclase (ChlA(I)). The cyanobacterium Synechocystis sp. PCC 6803 has alternative enzymes, HemN, HO2, and ChlA(II), to supply chlorophyll/bilins even under low-oxygen environments. The three genes form an operon,...

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PMID: 22375005
DOI: 10.1074/jbc.M112.346205
PMCID: PMC3339928

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Source receipt: pubmed, retrieved 7 Sept 2026.

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MarR-type transcriptional regulator ChlR activates expression of tetrapyrrole biosynthesis genes in response to low-oxygen conditions in cyanobacteria.PMID 22375005Read ↗

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