Nucleoside monophosphate (NMP) kinase that catalyzes the reversible transfer of the terminal phosphate group between nucleoside triphosphates and monophosphates. Has highest activity toward AMP, and weaker activity toward dAMP, CMP and dCMP. Also displays broad nucleoside diphosphate kinase activity. Involved in maintaining ciliary structure and function.
Subcellular locations: Cytoplasm, Cytosol, Cell projection, Cilium, Flagellum
Detected along the full length of sperm flagellum, where it colocalizes with alpha-tubulin.
Expressed in sperm and airway epithelial cells (at protein level).