Reaction: S-adenosyl-L-methionine + 6-demethylsterigmatocystin = S-adenosyl-L-homocysteine + sterigmatocystin
For diagram click here.
Other name(s): demethylsterigmatocystin methyltransferase; O-methyltransferase I
Systematic name: S-adenosyl-L-methionine:6-demethylsterigmatocystin 6-O-methyltransferase
Comments: Dihydrodemethylsterigmatocystin can also act as acceptor. Involved in the biosynthesis of aflatoxins in fungi.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 123516-47-2
1. Yabe, K., Ando, Y., Hashimoto, J. and Hamasaki, T. 2 distinct O-methyltransferases in aflatoxin biosynthesis. Appl. Environ. Microbiol. 55 (1989) 2172-2177.