Adenosine triphosphate + L-Glutamine + Nicotinic acid adenine dinucleotide + Water → Adenosine monophosphate + L-Glutamic acid + NAD + Pyrophosphate
Probable glutamine-dependent NAD(+) synthetase
Nicotinamide-nucleotide adenylyltransferase
Adenosine diphosphate + Phosphate + Pyrophosphate + nicotinate β-D-ribonucleotide ↔ Adenosine triphosphate + Hydrogen Ion + Nicotinic acid + Phosphoribosyl pyrophosphate + Water
Nicotinate D-ribonucleoside + Phosphate ↔ Hydrogen Ion + Nicotinic acid + Ribose 1-phosphate
Adenosine triphosphate + NAD → Adenosine diphosphate + NADP
NAD + Water ↔ Adenosine monophosphate + Nicotinamide ribotide
Nicotinamide ribotide + Water → Nicotinamide riboside + Phosphate
Adenosine triphosphate + nicotinate β-D-ribonucleotide ↔ Nicotinic acid adenine dinucleotide + Pyrophosphate
Nicotinamide riboside + Water ↔ D-Ribose + Niacinamide
Water + nicotinate β-D-ribonucleotide → Nicotinate D-ribonucleoside + Phosphate