label: 5-aminomethyl-2-thiouridine(34) in tRNA + S-adenosyl-L-methionine = 5-methylaminomethyl-2-thiouridine(34) in tRNA + S-adenosyl-L-homocysteine + H(+)
label_lc: 5-aminomethyl-2-thiouridine(34) in trna + s-adenosyl-l-methionine = 5-methylaminomethyl-2-thiouridine(34) in trna + s-adenosyl-l-homocysteine + h(+)