kanamycin A + GTP = 4'-guanylylkanamycin A + diphosphate
kanamycin a + gtp = 4'-guanylylkanamycin a + diphosphate
kanamycin A + GTP = 4'-guanylylkanamycin A + diphosphate
kanamycin a + gtp = 4'-guanylylkanamycin a + diphosphate