Biotin-Ahx-Ub-VS

activity-based probe for deubiquitinating enzymes (DUBs), labeled with biotin on the N-terminus

productsheet

250.00

Description

UbiQ-188 is an activity-based probe for deubiquitinating enzymes (DUBs) based on ubiquitin with a C-terminal electrophilic vinyl sulfone (VS) group. It is labeled on the N-terminus with a biotin and an aminohexanoic acid (Ahx) linker is introduced to create extra space between the biotin and Ub protein for efficient access of biotin binding entities. To eliminate Met1 oxidation, Met1 is replaced by norleucine, a well validated Met mimic. UbiQ-188 can be used for proteomics, activity profiling experiments and determining DUB inhibitor specificity.

Galardy, P., et al. Mechanism-based proteomics tools based on ubiquitin and ubiquitin-like proteins: crystallography, activity profiling, and protease identification. Methods in Enzymology. 399, 120-131 (2005).
http://www.ncbi.nlm.nih.gov/pubmed/16338352

de Jong, A., et al. Ubiquitin-based probes prepared by total synthesis to profile the activity of deubiquitinating enzymes. ChemBiochem 13, 2251-2258 (2012).
http://www.ncbi.nlm.nih.gov/pubmed/23011887

Wrigley, J.D. et al. Enzymatic characterisation of USP7 deubiquitinating activity and inhibition. Cell Biochem. Biophys. 60, 99-111 (2011)
http://www.ncbi.nlm.nih.gov/pubmed/21468692