3UE8

Kynurenine Aminotransferase II Inhibitors

Summary for 3UE8

• Entry DOI: 10.2210/pdb3ue8/pdb
• Descriptor: Kynurenine/alpha-aminoadipate aminotransferase, mitochondrial, (5-hydroxy-4-{[(1-hydroxy-2-oxo-1,2-dihydroquinolin-3-yl)amino]methyl}-6-methylpyridin-3-yl)methyl dihydrogen phosphate, CHLORIDE ION (3 entities in total)
• Functional Keywords: kat ii, kynurenine aminotransferase, transferase-transferase inhibitor complex, transferase/transferase inhibitor
• Biological source: Homo sapiens (human)
• Cellular location: Mitochondrion : Q8N5Z0
• Total number of polymer chains: 2
• Total formula weight: 99050.14

Authors

Dounay, A.B.,Anderson, M.,Bechle, B.M.,Campbell, B.M.,Claffey, M.M.,Evdokimov, A.,Edelweiss, E.,Fonseca, K.R.,Gan, X.,Ghosh, S.,Hayward, M.M.,Horner, W.,Kim, J.Y.,McAllister, L.A.,Pandit, J.,Paradis, V.,Parikh, V.D.,Reese, M.R.,Rong, S.B.,Salafia, M.A.,Schuyten, K.,Strick, C.A.,Tuttle, J.B.,Valentine, J.,Wang, H.,Zawadzke, L.E.,Verhoest, P.R. (deposition date: 2011-10-28, release date: 2012-02-01, Last modification date: 2024-02-28)

Primary citation

Dounay, A.B.,Anderson, M.,Bechle, B.M.,Campbell, B.M.,Claffey, M.M.,Evdokimov, A.,Evrard, E.,Fonseca, K.R.,Gan, X.,Ghosh, S.,Hayward, M.M.,Horner, W.,Kim, J.Y.,McAllister, L.A.,Pandit, J.,Paradis, V.,Parikh, V.D.,Reese, M.R.,Rong, S.,Salafia, M.A.,Schuyten, K.,Strick, C.A.,Tuttle, J.B.,Valentine, J.,Wang, H.,Zawadzke, L.E.,Verhoest, P.R.
Discovery of Brain-Penetrant, Irreversible Kynurenine Aminotransferase II Inhibitors for Schizophrenia.
ACS Med Chem Lett, 3:187-192, 2012

PubMed Abstract: Kynurenine aminotransferase (KAT) II has been identified as a potential new target for the treatment of cognitive impairment associated with schizophrenia and other psychiatric disorders. Following a high-throughput screen, cyclic hydroxamic acid PF-04859989 was identified as a potent and selective inhibitor of human and rat KAT II. An X-ray crystal structure and (13)C NMR studies of PF-04859989 bound to KAT II have demonstrated that this compound forms a covalent adduct with the enzyme cofactor, pyridoxal phosphate (PLP), in the active site. In vivo pharmacokinetic and efficacy studies in rat show that PF-04859989 is a brain-penetrant, irreversible inhibitor and is capable of reducing brain kynurenic acid by 50% at a dose of 10 mg/kg (sc). Preliminary structure-activity relationship investigations have been completed and have identified the positions on this scaffold best suited to modification for further optimization of this novel series of KAT II inhibitors.

PubMed: 24900455
DOI: 10.1021/ml200204m

Experimental method

X-RAY DIFFRACTION (3.22 Å)