label: N(3)-methylcytidine(32) in tRNA(Ser) + S-adenosyl-L-homocysteine + H(+) => cytidine(32) in tRNA(Ser) + S-adenosyl-L-methionine
label_lc: n(3)-methylcytidine(32) in trna(ser) + s-adenosyl-l-homocysteine + h(+) => cytidine(32) in trna(ser) + s-adenosyl-l-methionine