Proteasome selectivity towards Michael acceptor containing oligopeptide-based inhibitors
作者:Wouter A. van der Linden、Paul P. Geurink、Chris Oskam、Gijsbert A. van der Marel、Bogdan I. Florea、Herman S. Overkleeft
DOI:10.1039/b924134e
日期:——
The synthesis and biological evaluation of ten Michael acceptors containing potential proteasome inhibitors are described. Cellular targets of azide containing inhibitors Ib and VIIIb were assessed in HEK293T and RAW264.7 cells by a two step labeling strategy, followed by biotin-pulldown, affinity purification, on-bead tryptic digestion and LC-MS2 identification. This strategy appears to be an attractive alternative to gel-based competition assays.