WB, IP
H M R Mk
Endogenous
32
Rabbit IgG
#Q9UNE7
10273
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:100 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human, Mouse, Rat, Monkey
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues around Leu36 of human CHIP.
Background
The carboxy terminus of Hsc70-interacting protein (CHIP, STUB1) is a co-chaperone protein and functional E3 ubiquitin ligase that links the polypeptide binding activity of Hsp70 to the ubiquitin proteasome system (1). Cytoplasmic CHIP protein contains three 34-amino acid TPR (tetratricopeptide repeat) domains at its amino terminus and a carboxy-terminal U-box domain. CHIP interacts with the molecular chaperones Hsc70-Hsp70 and Hsp90 through its TPR domain, while E3 ubiquitin ligase activity is confined to the U-box domain (2,3). The binding of CHIP to Hsp70 can stall the folding of Hsp70 client proteins and concomitantly facilitate the U-box dependent ubiquitination of Hsp70-bound substrates (4-6). CHIP appears to play a central role in cell stress protection (7) and is responsible for the degradation of disease-related proteins that include cystic fibrosis transmembrane conductance regulator (4), p53 (8), huntingtin and Ataxin-3 (9), Tau protein (10), and α-synuclein (11).
- McDonough, H. and Patterson, C. (2003) Cell Stress Chaperones 8, 303-8.
- Ballinger, C.A. et al. (1999) Mol Cell Biol 19, 4535-45.
- Murata, S. et al. (2001) EMBO Rep 2, 1133-8.
- Meacham, G.C. et al. (2001) Nat Cell Biol 3, 100-5.
- Younger, J.M. et al. (2004) J Cell Biol 167, 1075-85.
- Jiang, J. et al. (2001) J Biol Chem 276, 42938-44.
- Dai, Q. et al. (2003) EMBO J 22, 5446-58.
- Esser, C. et al. (2005) J Biol Chem 280, 27443-8.
- Jana, N.R. et al. (2005) J Biol Chem 280, 11635-40.
- Shimura, H. et al. (2004) J Biol Chem 279, 4869-76.
- Shin, Y. et al. (2005) J Biol Chem 280, 23727-34.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
Trademarks and Patents
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