NAD biosynthesis, tryptophan => quinolinate => NAD
Brite
Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.13 Acting on single donors with incorporation of molecular oxygen (oxygenases)
1.13.11 With incorporation of two atoms of oxygen
1.13.11.6
R02665 3-Hydroxyanthranilate + Oxygen <=> 2-Amino-3-carboxymuconate semialdehyde