Skip to main content
Fig. 1 | Journal of Neuroinflammation

Fig. 1

From: Tryptophan-kynurenine metabolism: a link between the gut and brain for depression in inflammatory bowel disease

Fig. 1

The tryptophan-kynurenine metabolic pathway. TRP, tryptophan; IDO, indoleamine 2,3-dioxygenase; TDO, tryptophan 2,3-dioxygenase; N-fKYN, N-formyl-kynurenine; AA, anthranilate acid; KYNU, kynureninase; KYN, kynurenine; KAT, kynurenine aminotransferase; KYNA, kynerunic acid; KMO, kynurenine 3-monooxygenase; 3-HK, 3-hydroxykynurenine; HAAH, 3-hydroxyanthranilic acid 3,4-hydroxylase; 3-HAA, 3-hydroxyanthranilic acid; HAAO, 3-hydroxyanthranilicacid 3,4-dioxygenase; AMS, 2-aminomuconic-6-semialdehyde; ACMSD, 2-amino-3-carboxymuconate-6-semialdehydedecarboxylase; ACMS, 2-amino-3-carboxymuconate-6-semialdehyde; AMSD, 2-aminomuconic-6-semialdehyde dehydrogenase; QUIN, quinolinic acid; QPRT, quinolinate phosphoribosyltransferase; PIC, picolinic acid; NAD+, nicotinamide-adenine-dinucleotide

Back to article page