Chromatin Regulation / Acetylation

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抗体比較

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IHC-F: 固定

IHC-P: 抗体希釈液 / 抗原賦活化

Modulation of chromatin structure plays an important role in the regulation of transcription in eukaryotes. The nucleosome, made up of DNA wound around eight core histone proteins (two each of H2A, H2B, H3, and H4), is the primary building block of chromatin (1). The amino-terminal tails of core histones undergo various post-translational modifications, including acetylation, phosphorylation, methylation, and ubiquitination (2-5). These modifications occur in response to various stimuli and have a direct effect on the accessibility of chromatin to transcription factors and, therefore, gene expression (6). In most species, histone H2B is primarily acetylated at Lys5, 12, 15, and 20 (4,7). Histone H3 is primarily acetylated at Lys9, 14, 18, 23, 27, and 56. Acetylation of H3 at Lys9 appears to have a dominant role in histone deposition and chromatin assembly in some organisms (2,3). Phosphorylation at Ser10, Ser28, and Thr11 of histone H3 is tightly correlated with chromosome condensation during both mitosis and meiosis (8-10). Phosphorylation at Thr3 of histone H3 is highly conserved among many species and is catalyzed by the kinase haspin. Immunostaining with phospho-specific antibodies in mammalian cells reveals mitotic phosphorylation at Thr3 of H3 in prophase and its dephosphorylation during anaphase (11).

1. Workman, J.L. and Kingston, R.E. (1998) Annu Rev Biochem 67, 545-79.
2. Hansen, J.C. et al. (1998) Biochemistry 37, 17637-41.
3. Strahl, B.D. and Allis, C.D. (2000) Nature 403, 41-5.
4. Cheung, P. et al. (2000) Cell 103, 263-71.
5. Bernstein, B.E. and Schreiber, S.L. (2002) Chem Biol 9, 1167-73.
6. Jaskelioff, M. and Peterson, C.L. (2003) Nat Cell Biol 5, 395-9.
7. Thorne, A.W. et al. (1990) Eur J Biochem 193, 701-13.
8. Hendzel, M.J. et al. (1997) Chromosoma 106, 348-60.
9. Goto, H. et al. (1999) J Biol Chem 274, 25543-9.
10. Preuss, U. et al. (2003) Nucleic Acids Res 31, 878-85.
11. Dai, J. et al. (2005) Genes Dev 19, 472-88.
12. Anticancer Res. 2006 Nov-Dec;26(6C):4687-94

• Li, J. et al. (2001) Transcriptional induction of MKP-1 in response to stress is associated with histone H3 phosphorylation-acetylation. Mol. Cell. Biol. 21 (23), 8213-8224. Applications: IC-IF Western Blotting
• Allison, S.J. and Milner, J. (2003) Loss of p53 has site-specific effects on histone H3 modification, including serine 10 phosphorylation important for maintenance of ploidy. Cancer Res. 63, 6674-6679. Applications: Western Blotting
• Li, T. et al. (2004) Failure to proliferate and mitotic arrest of CDK11(p110/p58)-null mutant mice at the blastocyst stage of embryonic cell development. Mol. Cell. Biol. 24, 3188-3197. Applications: IC-IF
• Sugiyama, K. et al. (2002) Aurora-B associated protein phosphatases as negative regulators of kinase activation. Oncogene 21, 3103-3111. Applications: Western Blotting
• Song, N. et al. (2011) Acta Histochem Cytochem 44, 183-90. Applications: IHC-P (paraffin)
• Cheung, C.H. et al. (2011) PLoS One 6, e23485. Applications: IF-P (paraffin) Western Blotting

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Phospho-Histone H3 (Ser10) Antibody

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