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. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Mol Aspects Med. 2013 Jan 25;34(6):10.1016/j.mam.2013.01.004. doi: 10.1016/j.mam.2013.01.004

Figure 2. NAD+ biosynthetic pathways in mammals.

Figure 2

Naming derives from mammalian abbreviations. NA: nicotinic acid; NR: NAM riboside; NAM: nicotinamide; NAM NMN: NAM mononucleotide; NaMN: nicotinic acid mononucleotide; NaAD: nicotinic acid adenine dinucleotide; QPT: nicotinic acid phosphoribosyl-transferase; NRK: NAM riboside kinase; ART: ADP-ribosyl transferase; PARP: poly-ADP-polymerase; Nampt: NAM phosphoribosyltransferase; PNP: purine nucleoside phosphorylase; NMNAT: NMN/NaMN adenylyltransferase.