Description
General description
Human native nucleosomes purified from HeLa cell nuclei, digested with micrococcal nuclease, and purified by glycerol gradient and ion exchange chromatography.
Nucleosomes are the basic units of chromatin, and are comprised of approximately 147 bp of DNA spooled around a central octamer of core histones, H2A, H2B, H3, and H4. The arrangement of nucleosomes in chromatin can be altered by post-translational modifications (PTM) occurring on the C- and N-terminal tails of the core histones. Histone modifications can either provide or hinder access of key transcriptional complexes to DNA sequences and can regulate the expression of genes. These effects can be deciphered by applications such as chromatin immunoprecipiation (ChIP), which requires high quality chromatin, and essential tools such as histone proteins and appropriate enzymes, to assemble chromatin in vitro.
Product Source: Human
Application
Research Category
Epigenetics & Nuclear Function
Suitable for in vitro chromatin assembly and enzyme activity assays
Physical form
20 μg of mononucleosomes in buffer containing 20 mM Tris-Cl pH 7.9, 1 mM EDTA, 0.5 mM PMSF,1 mM DTT, and 50% glycerol.
Preparation Note
Stable at -80ºC for 1 year from date of receipt.
Legal Information
UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
