Download Mendeley2-aminoimidazole amino acids as inhibitors of the binuclear manganese metalloenzyme human arginase I.
Ilies, M., Di Costanzo, L., North, M.L., Scott, J.A., Christianson, D.W.(2010) J Med Chem 53: 4266-4276
- PubMed: 20441173
- DOI: https://doi.org/10.1021/jm100306a
- Primary Citation of Related Structures:
3MFV, 3MFW - PubMed Abstract:
Arginase, a key metalloenzyme of the urea cycle that converts L-arginine into L-ornithine and urea, is presently considered a pharmaceutical target for the management of diseases associated with aberrant l-arginine homeostasis, such as asthma, cardiovascular diseases, and erectile dysfunction. We now report the design, synthesis, and evaluation of a series of 2-aminoimidazole amino acid inhibitors in which the 2-aminoimidazole moiety serves as a guanidine mimetic. These compounds represent a new class of arginase inhibitors. The most potent inhibitor identified in this study, 2-(S)-amino-5-(2-aminoimidazol-1-yl)pentanoic acid (A1P, 10), binds to human arginase I with K(d) = 2 microM and significantly attenuates airways hyperresponsiveness in a murine model of allergic airways inflammation. These findings suggest that 2-aminoimidazole amino acids represent new leads for the development of arginase inhibitors with promising pharmacological profiles.
Organizational Affiliation:
Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.
