amikacin + UTP <=> 4'-uridylylamikacin + diphosphate
amikacin + utp <=> 4'-uridylylamikacin + diphosphate
amikacin + UTP <=> 4'-uridylylamikacin + diphosphate
amikacin + utp <=> 4'-uridylylamikacin + diphosphate