deoxynucleoside phosphate kinase activity, dTTP as phosphate donor
deoxynucleoside phosphate kinase activity, dttp as phosphate donor
a 2'-deoxyribonucleoside 5'-phosphate + dTTP = a 2'-deoxyribonucleoside 5'-diphosphate + dTDP
a 2'-deoxyribonucleoside 5'-phosphate + dttp = a 2'-deoxyribonucleoside 5'-diphosphate + dtdp