Tryptophan metabolism; concerning the mechanism of the mammalian conversion of tryptophan into kynurenine, kynurenic acid, and nicotinic acid.
D000818:Animals; D007736:Kynurenic Acid; D007737:Kynurenine; D008322:Mammals; D009525:Niacin; D009539:Nicotinic Acids; D014364:Tryptophan
D009539:Nicotinic Acids; D009525:Niacin; D007737:Kynurenine; D014364:Tryptophan; D007736:Kynurenic Acid