label: 8-O-methylsterigmatocystin + S-adenosyl-L-homocysteine + H(+) => sterigmatocystin + S-adenosyl-L-methionine
label_lc: 8-o-methylsterigmatocystin + s-adenosyl-l-homocysteine + h(+) => sterigmatocystin + s-adenosyl-l-methionine