preferred_name: a 2'-deoxyribonucleoside 5'-diphosphate + dTDP => dTTP + a 2'-deoxyribonucleoside 5'-phosphate
preferred_name_lc: a 2'-deoxyribonucleoside 5'-diphosphate + dtdp => dttp + a 2'-deoxyribonucleoside 5'-phosphate
label: a 2'-deoxyribonucleoside 5'-diphosphate + dTDP => dTTP + a 2'-deoxyribonucleoside 5'-phosphate
label_lc: a 2'-deoxyribonucleoside 5'-diphosphate + dtdp => dttp + a 2'-deoxyribonucleoside 5'-phosphate