Design, synthesis, and kinetic evaluation of a unique class of elastase inhibitors, the peptidyl .alpha.-ketobenzoxazoles, and the x-ray crystal structure of the covalent complex between porcine pancreatic elastase and Ac-Ala-Pro-Val-2-benzoxazole
作者:Philip D. Edwards、Edgar F. Meyer、J. Vijayalakshmi、Paul A. Tuthill、Donald A. Andisik、Bruce Gomes、Anne Strimpler
DOI:10.1021/ja00031a046
日期:1992.2
2 are potent, competitive, reversible inhibitors or the serine proteinases HLE and PPE. These inhibitors were designed to inactivate the enzyme by interacting with both the serine hydroxyl group and the histidine imidazole ring or the catalytic triad. The X-ray crystal structure determination of 2 bound to PPE confirms the covalent attachment or the inhibitor's carbonyl carbon atom to the hydroxyl group
肽基 α-酮苯并恶唑 1 和 2 是有效的、竞争性的、可逆的抑制剂或丝氨酸蛋白酶 HLE 和 PPE。这些抑制剂旨在通过与丝氨酸羟基和组氨酸咪唑环或催化三联体相互作用来使酶失活。与 PPE 结合的 2 的 X 射线晶体结构测定证实了与羟基或活性位点 Ser-195 的共价连接或抑制剂的羰基碳原子。氮原子或苯并恶唑环参与与 His-57 的氢键相互作用