label: cytidine(34) in elongator tRNA(Met) + acetate + ATP => N(4)-acetylcytidine(34) in elongator tRNA(Met) + AMP + diphosphate
label_lc: cytidine(34) in elongator trna(met) + acetate + atp => n(4)-acetylcytidine(34) in elongator trna(met) + amp + diphosphate