Nucleoside-Diphosphate Kinase

**Definition:** An enzyme that is found in mitochondria and in the soluble cytoplasm of cells. It catalyzes reversible reactions of a nucleoside triphosphate, e.g., ATP, with a nucleoside diphosphate, e.g., UDP, to form ADP and UTP. Many nucleoside diphosphates can act as acceptor, while many ribo- and deoxyribonucleoside triphosphates can act as donor. EC 2.7.4.6.

**Tree numbers:** - D08.811.913.696.650.550

**Synonyms:** - Deoxynucleoside Diphosphate Kinases - Nucleoside-Diphosphate Kinases - Nucleoside Diphosphokinases