کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1361024 | 981456 | 2008 | 6 صفحه PDF | دانلود رایگان |
2-Substituted 3-nitropropanoic acids were designed and synthesized as inhibitors against carboxypeptidase A (CPA). (R)-2-Benzyl- 3-nitropropanoic acid showed a potent inhibition against CPA (Ki = 0.15 μM). X-ray crystallography discloses that the nitro group well mimics the transition state occurred in the hydrolysis catalyzed by CPA, that is, an O,O′-bidentate coordination to the zinc ion and the two respective hydrogen bonds with Glu-270 and Arg-127. Because the nitro group is a planar species, we proposed (R)-2-benzyl-3-nitropropanoic acid as a pseudo-transition-state analog inhibitor against CPA.
X-ray crystallography of carboxypeptidase A-(R)-2-benzyl-3-nitropropanoic acid complex disclosed that the nitro group chelate the zinc ion in the active site of CPA in an O,O′-bidentate fashion.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry - Volume 16, Issue 7, 1 April 2008, Pages 3596–3601