Recombinant Human Kynurenine–oxoglutarate transaminase 1 (KYAT1)

Uniprot Id

Q16773

Target Species

Human

Target Name

KYAT1

Target Full Name

Kynurenine--oxoglutarate transaminase 1

Target Function

Catalyzes the irreversible transamination of the L-tryptophan metabolite L-kynurenine to form kynurenic acid (KA), an intermediate in the tryptophan catabolic pathway which is also a broad spectrum antagonist of the three ionotropic excitatory amino acid receptors among others. Also metabolizes the cysteine conjugates of certain halogenated alkenes and alkanes to form reactive metabolites. Catalyzes the beta-elimination of S-conjugates and Se-conjugates of L-(seleno)cysteine, resulting in the cleavage of the C-S or C-Se bond.

Target Subcellular Location

Cytoplasm, cytosol.

Target Protein Families

Class-I pyridoxal-phosphate-dependent aminotransferase family

Target Research Area

Metabolism

Target Synonyms

KYAT1; CCBL1; Kynurenine--oxoglutarate transaminase 1; EC 2.6.1.7; Cysteine-S-conjugate beta-lyase; EC 4.4.1.13; Glutamine transaminase K; GTK; Glutamine--phenylpyruvate transaminase; EC 2.6.1.64; Kynurenine aminotransferase 1; Kynurenine aminotransferase I; KATI; Kynurenine--oxoglutarate transaminase I

Target Background

This gene encodes a cytosolic enzyme that is responsible for the metabolism of cysteine conjugates of certain halogenated alkenes and alkanes. This metabolism can form reactive metabolites leading to nephrotoxicity and neurotoxicity. Increased levels of this enzyme have been linked to schizophrenia. Multiple transcript variants that encode different isoforms have been identified for this gene.