Mitomycin biosynthesis 6-O-methyltransferase

UniProtKB accession:  Q9X5T6

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UniProtKB description:  Involved in the biosynthesis of the quinone methoxy group present in the mitomycin A and B, which are used as anticancer agents (PubMed:10099135, PubMed:17461583). In vitro, catalyzes the 6-O-methylation of both C9-beta- and C9-alpha-configured 6-hydroxymitomycins via the transfer of the S-methyl group of S-adenosyl-L-methionine (AdoMet) to the 6-demethylmitomycin A and B. It can also use hydroxyquinone as substrate (PubMed:17461583).