4HWW image
Entry Detail
PDB ID:
4HWW
Title:
Crystal structure of human Arginase-1 complexed with inhibitor 9
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2012-11-09
Release Date:
2013-03-20
Method Details:
Experimental Method:
Resolution:
1.30 Å
R-Value Free:
0.16
R-Value Work:
0.15
R-Value Observed:
0.15
Space Group:
P 3
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Arginase-1
Chain IDs:A, B
Chain Length:314
Number of Molecules:2
Biological Source:Homo sapiens
Primary Citation
Discovery of (R)-2-Amino-6-borono-2-(2-(piperidin-1-yl)ethyl)hexanoic Acid and Congeners As Highly Potent Inhibitors of Human Arginases I and II for Treatment of Myocardial Reperfusion Injury.
J.Med.Chem. 56 2568 2580 (2013)
PMID: 23472952 DOI: 10.1021/jm400014c

Abstact

Recent efforts to identify treatments for myocardial ischemia reperfusion injury have resulted in the discovery of a novel series of highly potent α,α-disubstituted amino acid-based arginase inhibitors. The lead candidate, (R)-2-amino-6-borono-2-(2-(piperidin-1-yl)ethyl)hexanoic acid, compound 9, inhibits human arginases I and II with IC50s of 223 and 509 nM, respectively, and is active in a recombinant cellular assay overexpressing human arginase I (CHO cells). It is 28% orally bioavailable and significantly reduces the infarct size in a rat model of myocardial ischemia/reperfusion injury. Herein, we report the design, synthesis, and structure-activity relationships (SAR) for this novel series of inhibitors along with pharmacokinetic and in vivo efficacy data for compound 9 and X-ray crystallography data for selected lead compounds cocrystallized with arginases I and II.

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