Design of Peptide Hydroxamate-Based Photoreactive Activity-Based Probes of Zinc-Dependent Metalloproteases
作者:Paul P. Geurink、Theo Klein、Laurette Prèly、Krisztina Paal、Michiel A. Leeuwenburgh、Gijs A. van der Marel、Henk F. Kauffman、Herman S. Overkleeft、Rainer Bischoff
DOI:10.1002/ejoc.200901385
日期:2010.4
active metalloproteases can be visualised. Our probes are based on the succinyl hydroxamate motif and differ in the positioning of the trifluoromethylphenyldiazirine photoreactive group. We demonstrate that directing the photoactivatable group towards the S1' pocket yields activity-based probes more effective than the corresponding probe with the photoactivatable group directed towards the S2' pocket
金属蛋白酶(ADAM、MMP)是多域蛋白,在细胞外基质重塑和降解、细胞-细胞和细胞-基质相互作用以及细胞因子和生长因子的膜锚定形式的蛋白水解释放中起关键作用,即所谓的胞外域脱落。在这项工作中,我们描述了基于光活化活性的探针的开发,通过该探针可以可视化活性金属蛋白酶。我们的探针基于琥珀酰异羟肟酸酯基序,并且三氟甲基苯基二氮丙啶光反应基团的定位不同。我们证明,将光激活基团指向 S1' 口袋产生的基于活性的探针比具有指向 S2' 口袋的光激活基团的相应探针更有效。