α- and β-hydrazino acid-based pseudopeptides inhibit the chymotrypsin-like activity of the eukaryotic 20S proteasome
作者:Andrea Bordessa、Massaba Keita、Xavier Maréchal、Lucia Formicola、Nathalie Lagarde、Jordi Rodrigo、Guillaume Bernadat、Cyril Bauvais、Jean-Louis Soulier、Laure Dufau、Thierry Milcent、Benoit Crousse、Michèle Reboud-Ravaux、Sandrine Ongeri
DOI:10.1016/j.ejmech.2013.09.059
日期:2013.12
We describe the synthesis of a library of new pseudopeptides and their inhibitory activity of the rabbit 20S proteasome chymotrypsin-like (ChT-L) activity. We replaced a natural α-amino acid by an α- or a β-hydrazino acid and obtained inhibitors of proteasome up to a submicromolar range (0.7 μM for molecule 24b). Structural variations influenced the inhibition of the ChT-L activity. Models of inhibitor/20S
我们描述了新的假肽库的合成及其对兔20S蛋白酶体胰凝乳蛋白酶样(ChT-L)活性的抑制活性。我们用α-或β-肼基酸替换了天然的α-氨基酸,并获得了亚微摩尔范围(分子24b为0.7μM)的蛋白酶体抑制剂。结构变化影响了ChT-L活性的抑制。抑制剂/ 20S蛋白酶体复合物的模型证实了动力学研究获得的抑制效果。