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Article

Anaerobic chlorophyll isocyclic ring formation in Rhodobacter capsulatus requires a cobalamin cofactor.

Proceedings of the National Academy of Sciences of the United States of America - 6 Jun 2000

Gough S P, Petersen B O, Duus J O

Abstract excerpt

The isocyclic ring of bacteriochlorophyll (BChl) is formed by the conversion of Mg-protoporphyrin monomethyl ester (MPE) to protochlorophyllide (PChlide). Similarities revealed by blast searches with the putative anaerobic MPE-cyclase BchE suggested to us that this protein also uses a cobalamin cofactor. We found that vitamin B(12) (B(12))-requiring mutants of the bluE and bluB genes of Rhodobacter capsulatus,...

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Identifiers

PMID: 10841582
DOI: 10.1073/pnas.97.12.6908
PMCID: PMC18774

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