ISDA

Deposition Date 2014-03-04

Release Date 2014-06-04

Last Version Date 2023-11-08

Entry Detail

PDB ID:

3WS8

Keywords:

HYDROLASE/HYDROLASE INHIBITOR

Title:

Crystal structure of PDE10A in complex with a benzimidazole inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.60 Å

R-Value Free:

0.31

R-Value Work:

0.21

R-Value Observed:

0.22

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

X4C

Primary Citation

Novel benzimidazole derivatives as phosphodiesterase 10A (PDE10A) inhibitors with improved metabolic stability.

Chino, A, Masuda, N, Amano, Y, Honbou, K, Mihara, T, Yamazaki, M, Tomishima, M.Show

Bioorg.Med.Chem. 22 3515 3526 (2014)

PMID: 24837154 DOI: 10.1016/j.bmc.2014.04.023

Abstact

In this study, we report the identification of potent benzimidazoles as PDE10A inhibitors. We first identified imidazopyridine 1 as a high-throughput screening hit compound from an in-house library. Next, optimization of the imidazopyridine moiety to improve inhibitory activity gave imidazopyridinone 10b. Following further structure-activity relationship development by reducing lipophilicity and introducing substituents, we acquired 35, which exhibited both improved metabolic stability and reduced CYP3A4 time-dependent inhibition.

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