261991 NadA superfamilyThalassiosira pseudonana
GO:0008987 GO:0009435 -
quinolinate synthetase A activity
Catalysis of the reaction: iminoaspartate + dihydroxy-acetone-phosphate = quinolinate + 2 H2O + phosphate.
NAD biosynthetic process
The chemical reactions and pathways resulting in the formation of nicotinamide adenine dinucleotide, a coenzyme present in most living cells and derived from the B vitamin nicotinic acid; biosynthesis may be of either the oxidized form, NAD, or the reduced form, NADH.