Rabbit anti-L-Kynurenine polyclonal antibody for ELISA, IHC-P. L-Kynurenine is a metabolite of theamino acid L-tryptophan used in the production of niacin. It has beenassociated with tics. Kynureninase catabolizes the conversion of kynurenineinto anthranilic acid while kynurenine-oxoglutarate transaminase catabolizes