NAD kinase catalyzes the transfer of a phosphate group from ATP to NAD+ to generate NADP+, which in its reduced form acts as an electron donor for biosynthetic reactions. NADP+ is an essential coenzyme in metabolism and provides reducing power to biosynthetic processes such as fatty acid biosynthesis. MW: ~42 kDa (monomer). Human NAD kinase (aa 64-446) is fused at the N-terminus to a His-tag. Purity ≥95%