ID 2.1.1.110 DE sterigmatocystin 8-O-methyltransferase. AN O-methyltransferase II. AN S-adenosyl-L-methionine:sterigmatocystin 7-O-methyltransferase. AN sterigmatocystin 7-O-methyltransferase. AN sterigmatocystin methyltransferase. CA (1) S-adenosyl-L-methionine + sterigmatocystin = 8-O- CA methylsterigmatocystin + H(+) + S-adenosyl-L-homocysteine. CA (2) dihydrosterigmatocystin + S-adenosyl-L-methionine = 8-O- CA methyldihydrosterigmatocystin + H(+) + S-adenosyl-L-homocysteine. CC -!- Dihydrosterigmatocystin can also act as acceptor. CC -!- Involved in the biosynthesis of aflatoxins in fungi. DR Q12120, AFLP_ASPPU ; P55790, OMTA_ASPFN ; //