The nucleosome, made up of four core histone proteins (H2A, H2B, H3 and H4), is the primary building block of chromatin. Originally thought to function as a static scaffold for DNA packaging, histones have now been shown to be dynamic proteins, undergoing multiple types of post-translational modifications, including acetylation, phosphorylation, methylation and ubiquitination (1).
Suitable for use in Immunofluorescence, Western Blot, Immunoprecipitation, Chromatin Immunoprecipitation and Immunohistochemistry. Other applications not tested.
Immunofluorescence (IC): 1:400
Western Blot: 1:1000
Chromatin Immunoprecipitation: 1:25
Immunohistochemistry (paraffin): 1:100
Optimal 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 at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
| Not determined|
|Synthetic peptide corresponding to the amino terminus of histone H3 in which Lys27 is tri-methylated (KLH). Species Sequence Homology: Xenopus (100%).|
|Purified by Immunoaffinity chromatography. |
|Supplied as a liquid in 10mM HEPES, pH 7.5, 150mM sodium chloride, 0.1mg/ml BSA, 50% glycerol. |
|Recognizes endogenous levels of human histone H3 only when tri-methylated on Lys27. Does not crossreact with non-methylated, mono-methylated or di-methylated Lys27. In addition, the antibody does not crossreact with mono-methylated, di-methylated or tri-methylated histone H3 at Lys4, Lys9, Lys36 or Histone H4 at Lys20. Species Crossreactivity: human, mouse, rat and monkey.|
|Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.|
1. Peterson, C.L. & Laniel, M.A., Curr. Biol. 14: R546z-R551 (2004). 2. Kubicek, S., et al., Ernst Schering Res. Found Work-shop, 1-27 (2006). 3. Lin, W. & Dent, S.Y., Curr. Opin. Genet. Dev. 16: 137-142 (2006). 4. Lee, D.Y., et al., Endocr. Rev. 26: 147-170 (2005). 5. Daniel, J.A., et al., Cell Cycle 4: 919-926 (2005). 6. Shi, X., et al., Nature 442: 96-99 (2006). 7. Wysocka, J., et al., Nature 442: 86-90 (2006). 8. Wysocka, J., et al., Cell 121: 859-872 (2005). 9. Trojer, P. & Reinberg, D., Cell 125: 213-217 (2006).|