posted 09-14-2010 08:35 PM            

AnaSpec, the world’s largest provider of on-demand GO® peptides has introduced a wide selection of Histone H1, H2A, H2B, H3 and H4 peptides, especially the H3 peptides. The rapidly expanding Histone H3 GO ® Peptides include sequences that are acetylated, mono-, di- or tri-methylated, phosphorylated and biotinylated.

Chromatin exist either as the transcriptionally active euchromatin or as the transcriptionally repressed heterchromatin state.1 Post-translational modifications of histone “tails” (amino termini) have been implicated in the conversion between the two states. 1-2 Covalent modifications, such as acetylation, methylation and phosphorylation affect chromatin structure and exquisitely regulate gene expression.3-6 Histone hyperacetylation is correlated with increased transcription, whereas hypoacetylation correlates with transcriptional repression.5 In Histone H3, preferential methylation sites have been shown to be Lys4, Lys9, Lys27 and Lys36, with methylation generally leading to transcriptional suppression.3,7 Methylation of specific arginine residues in H3 has been shown to correlate with cell fate and potency.8 Phosphorylation at Ser10 (pSer10) is implicated in both transcription and cell division.9

References:
1. Grunstein, M. et al. J. Cell Sci. Suppl. 19, 29 (1995).
2. Strahl, BR and CD Allis, Nature 403, 41 (2000).
3. Strahl, BD. et al. Proc. Natl. Acad. Sci. 96, 14967 (1999).
4. Jenuwein, T. and CD. Allis Science 293, 1074 (2001).
5. Sterner, DE. et al. Microbiol. Mol. Biol. Rev. 64, 435 (2000).
6. Lachner, M. et al. J. Cell Sci. 116, 2117 (2003).
7. Nishioka, K. et al. Genes & Dev. 16, 479 (2002).
8. Torres-Padilla, M-E. et al. Nature 445, 214 (2007).
9. Prigent, C. and S. Dimitrov, J. Cell Sci. 116, 3677 (2003).

About AnaSpec

AnaSpec is a leading provider of integrated proteomics solutions to the world’s largest biotech, pharmaceutical, and academic research institutions. With a vision for innovation through synergy, AnaSpec focuses on three core technologies: peptides, detection reagents, and antibodies.

AnaSpec recently joined forces with Eurogentec to provide an even broader spectrum of products and services to serve the worldwide life science community.

For more information visit www.anaspec.com

About Eurogentec

Eurogentec is a leading global supplier of innovative reagents, kits, specialty products and custom services to scientists in the life science, biotechnology, pharmaceutical and diagnostic markets. Eurogentec provides a wide range of expertize in small- and large-scale DNA, RNA, PCR and qPCR kits, peptide synthesis and antibody supply for research applications. Our ISO13485:2003-certified manufacturing facilities in Belgium provides a wide range of high value oligonucleotide-based components for diagnostic and therapeutic applications. Eurogentec’s Belgium manufacturing facility is complemented by additional production facilities in North America and Japan. Eurogentec is also an experienced Contract Manufacturing Organization (CMO) for Biopharmaceuticals, operating a full-service, state-of-the-art GMP facility in Belgium.

Eurogentec is a privately held company headquartered in Liège, Belgium, with subsidiaries in North America, France, Germany, the UK, the Netherlands and Switzerland and has additional production facilities in North America, Japan and Singapore. Eurogentec employs 400+ people globally.