This enzyme belongs to the family of ligases, specifically those forming carbon-nitrogen bonds carbon-nitrogen ligases with glutamine as amido-N-donor. The systematic name of this enzyme class is deamido-NAD+:L-glutamine amido-ligase (AMP-forming). Other names in common use include NAD+ synthetase (glutamine-hydrolysing), nicotinamide adenine dinucleotide synthetase (glutamine), desamidonicotinamide adenine dinucleotide amidotransferase, and DPN synthetase.
^Bieganowski P, Pace HC, Brenner C (August 2003). "Eukaryotic NAD+ synthetase Qns1 contains an essential, obligate intramolecular thiol glutamine amidotransferase domain related to nitrilase". The Journal of Biological Chemistry. 278 (35): 33049–55. doi:10.1074/jbc.m302257200. PMID12771147.
^Wojcik M, Seidle HF, Bieganowski P, Brenner C (November 2006). "Glutamine-dependent NAD+ synthetase. How a two-domain, three-substrate enzyme avoids waste". The Journal of Biological Chemistry. 281 (44): 33395–402. doi:10.1074/jbc.m607111200. PMID16954203.