Product Pathways - Chromatin Regulation / Epigenetics
Ezh2 Antibody #4905
|W IP ChIP||H M R Pg||Endogenous||98||Rabbit|
Reactivity Key: H=Human M=Mouse R=Rat Pg=Pig
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Specificity / Sensitivity
Ezh2 Antibody detects endogenous levels of Ezh2 protein. The antibody may cross-react with Ezh2-related proteins.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Arg354 of human Ezh2 protein. Antibodies are purified by protein A and peptide affinity chromatography.
Chromatin immunoprecipitations were performed with cross-linked chromatin from 4 x 106 NCCIT cells and either 20 µl of EZH2 Antibody or 2 µl of Normal Rabbit IgG #2729 using SimpleChIP® Enzymatic Chromatin IP Kit (Magnetic Beads) #9003. The enriched DNA was quantified by real-time PCR using SimpleChIP® Human HoxA1 Intron 1 Primers #7707, SimpleChIP® Human HoxA2 Promoter Primers #5517 and SimpleChIP® Human α Satellite Repeat Primers #4486. The amount of immunoprecipitated DNA in each sample is represented as signal relative to the total amount of input chromatin, which is equivalent to one.
The polycomb group (PcG) proteins are involved in maintaining the silenced state of several developmentally regulated genes and contribute to the maintenance of cell identity, cell cycle regulation, and oncogenesis (1,2). Enhancer of zeste homolog 2 (Ezh2), a member of this large protein family, contains four conserved regions including domain I, domain II, and a cysteine-rich amino acid stretch that precedes the carboxy-terminal SET domain (3). The SET domain has been linked with histone methyltransferase (HMTase) activity. Moreover, mammalian Ezh2 is a member of a histone deacetylase complex that functions in gene silencing, acting at the level of chromatin structure (4). Ezh2 complexes methylate histone H3 at Lys9 and 27 in vitro, which is thought to be involved in targeting transcriptional regulators to specific loci (5). Ezh2 is deregulated in various tumor types, and its role, both as a primary effector and as a mediator of tumorigenesis, has become a subject of increased interest (6).
- Seller, W.B. and Loda, M. (2002) Cancer Cell 2, 349-350.
- Visser, H.P. et al. (2001) Br. J. Haematol. 112, 950-958.
- Chen, H. et al. (1996) Genomics 38, 30-37.
- Tonini, T. et al. (2004) Oncogene 23, 4930-4937.
- Muller, J. et al. (2002) Cell 111, 197-208.
- Kleer, C.G. et al. (2003) Proc Natl. Acad. Sci. USA 100, 11606-11611.
- Wu, S.C. and Zhang, Y. (2011) J Biol Chem 286, 28511-9. Applications: Western Blotting
- Mandal, M. et al. (2011) Nat Immunol 12, 1212-20. Applications: Western Blotting
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For Research Use Only. Not For Use In Diagnostic Procedures.