ISDA

Deposition Date 2009-02-02

Release Date 2009-06-23

Last Version Date 2023-09-06

Entry Detail

PDB ID:

3G3E

Keywords:

OXIDOREDUCTASE

Title:

Crystal structure of human D-amino acid oxidase in complex with hydroxyquinolin-2(1H)

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.29

R-Value Work:

0.23

R-Value Observed:

0.24

Space Group:

P 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:D-amino-acid oxidase
Gene (Uniprot):DAO
Chain IDs:A, B, C, D
Chain Length:351
Number of Molecules:4
Biological Source:Homo sapiens

UniProt ID:P14920 Pfam ID:PF01266 EC:1.4.3.3

Ligand Molecules

FAD

G3E

Primary Citation

Discovery, SAR, and pharmacokinetics of a novel 3-Hydroxyquinolin-2(1H)-one series of potent D-amino acid oxidase (DAAO) inhibitors

Duplantier, A.J, Becker, S.L, Bohanon, M.J, Borzilleri, K.A, Chrunyk, B.A, Downs, J.T, Hu, L.Y, El-Kattan, A, James, L.C, Liu, S, Lu, J, Maklad, N, Mansour, M.N, Mente, S, Piotrowski, M.A, Sakya, S.M, Sheehan, S, Steyn, S.J, Strick, C.A, Williams, V.A, Zhang, L.Show

J.Med.Chem. 52 3576 3585 (2009)

PMID: 19438227 DOI: 10.1021/jm900128w

Abstact

3-Hydroxyquinolin-2(1H)-one (2) was discovered by high throughput screening in a functional assay to be a potent inhibitor of human DAAO, and its binding affinity was confirmed in a Biacore assay. Cocrystallization of 2 with the human DAAO enzyme defined the binding site and guided the design of new analogues. The SAR, pharmacokinetics, brain exposure, and effects on cerebellum D-serine are described. Subsequent evaluation against the rat DAAO enzyme revealed a divergent SAR versus the human enzyme and may explain the high exposures of drug necessary to achieve significant changes in rat or mouse cerebellum D-serine.

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