Structure of Nampt/PBEF/visfatin, a mammalian NAD[superscript +]biosynthetic enzyme
- JHU-MED
Nicotinamide phosphoribosyltransferase (Nampt) synthesizes nicotinamide mononucleotide (NMN) from nicotinamide in a mammalian NAD{sup +} biosynthetic pathway and is required for SirT1 activity in vivo. Nampt has also been presumed to be a cytokine (PBEF) or a hormone (visfatin). The crystal structure of Nampt in the presence and absence of NMN shows that Nampt is a dimeric type II phosphoribosyltransferase and provides insights into the enzymatic mechanism.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1007723
- Journal Information:
- Nat. Struct. Mol. Biol., Vol. 13, Issue (7) ; 07, 2006
- Country of Publication:
- United States
- Language:
- ENGLISH
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