NAD kinase and nicotinamide mononucleotide adenylyltransferase, or NMNAT, both work with dinucleotide metabolism but catalyze different reactions. NAD kinase adds phosphate to already-formed NAD+ to make...

NAD+ and nicotinamide mononucleotide, or NMN, sit next to each other in biosynthesis but are not interchangeable names. NMN contains nicotinamide, ribose and one phosphate. NAD+...

The NAD+ salvage pathway recycles nicotinamide released by NAD+-consuming reactions. NAMPT starts the two-step route by combining nicotinamide with phosphoribosyl pyrophosphate to form nicotinamide mononucleotide, or...