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