USP8 Antibody #8728
Filter:
- WB
- IP
Supporting Data
| REACTIVITY | H Mk |
| SENSITIVITY | Endogenous |
| MW (kDa) | 130 |
| SOURCE | Rabbit |
Application Key:
- WB-Western Blotting
- IP-Immunoprecipitation
Species Cross-Reactivity Key:
- H-Human
- Mk-Monkey
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:50 |
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.
Protocol
Specificity / Sensitivity
USP8 Antibody recognizes endogenous levels of total USP8 protein.
Species Reactivity:
Human, Monkey
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro320 of human USP8 protein. Antibodies are purified by protein A and peptide affinity chromatography.
Background
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. The deubiquitinating enzyme ubiquitin-specific protease 8 (USP8/UBPy) is a cysteine protease belonging to the USP/UBP subfamily. Research studies have shown that USP8 is an essential growth-regulated enzyme indespensible for cell proliferation and survival (3,4). Indeed, conditional knock-out of murine USP8 was shown to promote a dramatic loss in expression of receptor tyrosine kinases, including EGFR, ErbB3, and c-Met (4). In agreement with these findings, USP8 inactivation leads to enhanced ubiquitination of ligand-activated EGFR (5,6). Furthermore, phosphorylation of USP8 at Ser680 results in its binding of 14-3-3, catalytic inactivation, and reduced EGFR deubiquitination (7). It appears as though USP8, in conjunction with components of the ESCRT-0 complex, plays an integral role in the early endosomal sorting machinery that functions to protect EGFR from lysosomal degradation (8,9).
- Nijman, S.M. et al. (2005) Cell 123, 773-86.
- Nalepa, G. et al. (2006) Nat Rev Drug Discov 5, 596-613.
- Naviglio, S. et al. (1998) EMBO J 17, 3241-50.
- Niendorf, S. et al. (2007) Mol Cell Biol 27, 5029-39.
- Alwan, H.A. and van Leeuwen, J.E. (2007) J Biol Chem 282, 1658-69.
- Mizuno, E. et al. (2005) Mol Biol Cell 16, 5163-74.
- Mizuno, E. et al. (2007) Exp Cell Res 313, 3624-34.
- Row, P.E. et al. (2006) J Biol Chem 281, 12618-24.
- Berlin, I. et al. (2010) J Biol Chem 285, 34909-21.
限制使用
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For Research Use Only. Not For Use In Diagnostic Procedures.
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