WB, IP
H M R Mk
Endogenous
82
Rabbit IgG
#P21580
7128
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 recombinant protein specific to the amino terminus terminus of human A20/TNFAIP3 protein. The antibody was prepared in collaboration with Dr. Marc Schmidt-Supprian, Max Planck Institute of Biochemistry.
Background
A20, also referred to as TNF-α-induced protein 3 (TNFAIP3), is cytokine-inducible protein that functions to inhibit apoptosis and activate NF-κB (1,2). It was first identified as a TNF-α inducible primary response gene in human umbilical vein endothelial cells, and encodes a 790-amino acid protein containing seven Cys2/Cys2-zinc finger motifs (3). Constitutive expression of A20 is observed in lymphoid tissues (4), but it is transiently expressed in a variety of cell types in response to inflammatory signals such as TNF-α (3,5), IL-1 (3,5), phorbol esters (6), and LPS (7). Expression of A20 can confer resistance to apoptosis and NF-κB activation triggered by these signals, probably through interference with TRAF (TNF receptor associated factor) family members (8,9), and interaction with the NF-κB inhibiting protein ABIN (10). Studies also show that A20 contains site-specific ubiquitin modifying activity that can contribute to its biological functions (11,12). The amino-terminus of A20 contains de-ubiquitinating (DUB) activity for Lys63 branches, such as those found in TRAF6 and RIP, while the carboxyl-terminus contains ubiquitin ligase (E3) activity for Lys48 branches of the same substrates and leads to their degradation (12).
- Beyaert, R. et al. (2000) Biochem Pharmacol 60, 1143-51.
- Lee, E.G. et al. (2000) Science 289, 2350-4.
- Dixit, V.M. et al. (1990) J Biol Chem 265, 2973-8.
- Tewari, M. et al. (1995) J Immunol 154, 1699-706.
- Jäättelä, M. et al. (1996) J Immunol 156, 1166-73.
- Laherty, C.D. et al. (1993) J Biol Chem 268, 5032-9.
- Hu, X. et al. (1998) Blood 92, 2759-65.
- Song, H.Y. et al. (1996) Proc Natl Acad Sci USA 93, 6721-5.
- Heyninck, K. and Beyaert, R. (1999) FEBS Lett 442, 147-50.
- Heyninck, K. et al. (1999) J Cell Biol 145, 1471-82.
- Evans, P.C. et al. (2004) Biochem J 378, 727-34.
- Lin, S.C. et al. (2008) J Mol Biol 376, 526-40.
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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