preferred_name: 4'-thymidylylamikacin + diphosphate => amikacin + dTTP
preferred_name_lc: 4'-thymidylylamikacin + diphosphate => amikacin + dttp
label: 4'-thymidylylamikacin + diphosphate => amikacin + dTTP
label_lc: 4'-thymidylylamikacin + diphosphate => amikacin + dttp