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