label: N,N-dimethyldopamine + S-adenosyl-L-homocysteine + H(+) => N-methyl-dopamine + S-adenosyl-L-methionine
label_lc: n,n-dimethyldopamine + s-adenosyl-l-homocysteine + h(+) => n-methyl-dopamine + s-adenosyl-l-methionine