6-demethylmitomycin B + S-adenosyl-L-methionine => mitomycin B + S-adenosyl-L-homocysteine
6-demethylmitomycin b + s-adenosyl-l-methionine => mitomycin b + s-adenosyl-l-homocysteine
6-demethylmitomycin B + S-adenosyl-L-methionine => mitomycin B + S-adenosyl-L-homocysteine
6-demethylmitomycin b + s-adenosyl-l-methionine => mitomycin b + s-adenosyl-l-homocysteine