ISDA

Deposition Date 2011-05-13

Release Date 2011-07-20

Last Version Date 2024-10-09

Entry Detail

PDB ID:

3S0N

Keywords:

HYDROLASE/HYDROLASE INHIBITOR

Title:

Crystal Structure of Human Chymase with Benzimidazolone Inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.95 Å

R-Value Free:

0.22

R-Value Work:

0.19

Space Group:

P 43

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Chymase
Gene (Uniprot):CMA1
Mutations:F127K,V208A,R235Q
Chain IDs:A
Chain Length:226
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P23946 Pfam ID:PF00089 EC:3.4.21.39

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
ASN	A	ASN	GLYCOSYLATION SITE

Ligand Molecules

0BB

NAG

Primary Citation

Benzimidazolone as potent chymase inhibitor: Modulation of reactive metabolite formation in the hydrophobic (P(1)) region.

Lo, H.Y, Nemoto, P.A, Kim, J.M, Hao, M.H, Qian, K.C, Farrow, N.A, Albaugh, D.R, Fowler, D.M, Schneiderman, R.D, Michael August, E, Martin, L, Hill-Drzewi, M, Pullen, S.S, Takahashi, H, De Lombaert, S.Show

Bioorg.Med.Chem.Lett. 21 4533 4539 (2011)

PMID: 21733690 DOI: 10.1016/j.bmcl.2011.05.126

Abstact

A new class of chymase inhibitor featuring a benzimidazolone core with an acid side chain and a P(1) hydrophobic moiety is described. Incubation of the lead compound with GSH resulted in the formation of a GSH conjugate on the benzothiophene P(1) moiety. Replacement of the benzothiophene with different heterocyclic systems such as indoles and benzoisothiazole is feasible. Among the P(1) replacements, benzoisothiazole prevents the formation of GSH conjugate and an in silico analysis of oxidative potentials agreed with the experimental outcome.

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Primary Citation of related structures