背景介绍 Catalyzes the condensation of nicotinamide with 5-phosphoribosyl-1-pyrophosphate to yield nicotinamide mononucleotide, an intermediate in the biosynthesis of NAD. It is the rate limiting component in the mammalian NAD biosynthesis pathway. The protein belongs to the nicotinic acid phosphoribosyltransferase (NAPRTase) family and is thought to be involved in many important biological processes, including metabolism, stress response and aging. 产品介绍 Human Nicotinamide phosphoribosyltransferase protein (NAMPT), also known as PBEF1 or visfatin (GenBank Accession No. NM_005746), a.a. 2-491 (end), no tag, MW=56 kDa, expressed in an E. coli cell expression system.