nucleoside diphosphate kinase

nu·cle·o·side di·phos·phate ki·nase

(nū'klē-ō-sīd' dī-fos'fāt kī'nās), A phosphotransferase reversibly catalyzing the transfer of one phosphoryl group from ATP to a nucleoside diphosphate to yield a nucleoside triphosphate and ADP.