label: 7-aminomethyl-7-carbaguanine + guanosine(34) in tRNA <=> 7-aminomethyl-7-carbaguanosine(34) in tRNA + guanine
label_lc: 7-aminomethyl-7-carbaguanine + guanosine(34) in trna <=> 7-aminomethyl-7-carbaguanosine(34) in trna + guanine