Beta-aminoketones as prodrugs for selective irreversible inhibitors of type-1 methionine aminopeptidases
作者:Markus Altmeyer、Eberhard Amtmann、Carina Heyl、Aline Marschner、Axel J. Scheidig、Christian D. Klein
DOI:10.1016/j.bmcl.2014.09.047
日期:2014.11
irreversible MetAP inhibitors that are selective for the MetAP-1 subtype. β-Aminoketones with certain structural features form α,β-unsaturated ketones under physiological conditions, which bind covalently and selectively to cysteines in the S1 pocket of MetAP-1. The binding mode was confirmed by X-ray crystallography and assays with the MetAPs from Escherichia coli, Staphylococcus aureus and both human isoforms
我们鉴定并表征了β-氨基酮作为不可逆MetAP抑制剂的前药,这些抑制剂对MetAP-1亚型具有选择性。具有某些结构特征的β-氨基酮在生理条件下会形成α,β-不饱和酮,这些酮共价且选择性地与MetAP-1 S1口袋中的半胱氨酸结合。通过X射线晶体学和用来自大肠杆菌,金黄色葡萄球菌和两种人同工型的MetAP的测定证实了结合模式。最初鉴定的四氢萘酮衍生物对大肠杆菌MetAP相对于人MetAP-1和MetAP-2具有完全的选择性。茚满酮类似物的合理设计产生对人类1型与人类2 MetAP具有选择性的化合物。