Ubiquitinating enzymes (UBEs) catalyze protein ubiquitination, a reversible process countered by deubiquitinating enzyme (DUB) action (1,2).
Five DUB subfamilies are recognized, including the USP, UCH, OTU, MJD and JAMM enzymes.
Ubiquitin-specific-processing protease 2 (USP2) belongs to the USP (UBP/UCH type 2) subfamily and is characterized by its C19 peptidase activity, which is involved in ubiquitin recycling and in the disassembly of various forms of polymeric ubiquitin and ubiquitin-like protein complexes (3).
Characteristic of the USP subfamily, USP2 possesses a highly conserved "Cys box" and "His box," which contain a conserved cysteine and histidine residue, respectively, and form part of the active site of this thiol protease.
The catalytic core, which lies between the Cys box and His box, is responsible for the deubiquitinating activity of USP2 and is present within each of its splice variants (4,5).There is mounting evidence that USP2 functions as an oncoprotein through multiple mechanisms.
In human prostate cancer, USP2 is highly overexpressed and drives tumor growth by binding to and stabilizing fatty acid synthase through deubiquitination (6,7).
It has also been demonstrated that USP2 can bind and deubiquitinate both Mdm2 (8) and cyclin D1 (9), which leads to their stabilization and enhanced cell proliferation.
Applications:Suitable for use in Immunofluorescence, Western Blot, Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Western Blot: 1:200-1:500Immunohistochemistry: 1:50-1:100Immunofluorescence: 1:20-1:50Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:50ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by affinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.3, 0.02% sodium azide, 50% glycerol.
Specificity:Recognizes USP2. Species Crossreactivity: human, mouse, rat
Isotype:IgG
Calc Applications Abbrev:IF IHC WB
Calc Crossreactivity:Hu Mo Rt
Immunogen:Recombinant protein corresponding to human USP2.