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== Function == | == Function == | ||
| - | + | [https://www.uniprot.org/uniprot/I2N5E8_STRT9 I2N5E8_STRT9] [https://www.uniprot.org/uniprot/DNRK_STRPE DNRK_STRPE] Involved in the biosynthesis of the anthracyclines carminomycin and daunorubicin (daunomycin) which are aromatic polyketide antibiotics that exhibit high cytotoxicity and are widely applied in the chemotherapy of a variety of cancers. In vivo, catalyzes the transfer of a methyl group from S-adenosyl-L-methionine to the 4-O-position of carminomycin to form daunorubicin. In vitro, it also methylates the anthracyclines rhodomycin D (10-carbomethoxy-13-deoxycarminomycin) and 13-deoxy-carminomycin at the 4-hydroxyl position. It is quite specific with respect to the length of the carbohydrate chain at the C7 position, but it can accept substrates with bulky substituent at C10 position.<ref>PMID:15273252</ref> | |
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 07:32, 22 March 2023
Chimeric carminomycin-4-O-methyltransferase (DnrK) with a region from 10-decarboxylase TamK
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