ISDA

Deposition Date 2019-07-03

Release Date 2019-08-14

Last Version Date 2023-11-22

Entry Detail

PDB ID:

6KE0

Keywords:

HYDROLASE

Title:

Crystal structure of PDE10A in complex with a triazolopyrimidine inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.95 Å

R-Value Free:

0.30

R-Value Work:

0.25

R-Value Observed:

0.25

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A
Gene (Uniprot):PDE10A
Chain IDs:A, B
Chain Length:345
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:Q9Y233 EC:3.1.4.17

Ligand Molecules

D7C

Primary Citation

Synthesis, SAR study, and biological evaluation of novel 2,3-dihydro-1H-imidazo[1,2-a]benzimidazole derivatives as phosphodiesterase 10A inhibitors.

Chino, A, Honda, S, Morita, M, Yonezawa, K, Hamaguchi, W, Amano, Y, Moriguchi, H, Yamazaki, M, Aota, M, Tomishima, M, Masuda, N.Show

Bioorg.Med.Chem. 27 3692 3706 (2019)

PMID: 31301949 DOI: 10.1016/j.bmc.2019.07.010

Abstact

Phosphodiesterase 10A (PDE10A) inhibitors were designed and synthesized based on the dihydro-imidazobenzimidazole scaffold. Compound 5a showed moderate inhibitory activity and good permeability, but unfavorable high P-glycoprotein (P-gp) liability for brain penetration. We performed an optimization study to improve both the P-gp efflux ratio and PDE10A inhibitory activity. As a result, 6d was identified with improved P-gp liability and high PDE10A inhibitory activity. Compound 6d also showed satisfactory brain penetration, suppressed phencyclidine-induced hyperlocomotion and improved MK-801-induced working memory deficit.

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Primary Citation of related structures