|Application ||WB, IF, E, DB|
|Calculated MW||15404 Da|
|Positive Control||Western blot: Whole cell and histone extracts, IF: NIH3T3 cells, ELISA: Antigen, ChIP: HeLa cells, Dot blot: Histone Peptides.|
|Application & Usage||WB: 1:500, Dot Blot: 1:5,000, ChIP: 1 µl/ChIP, IF: 1:200, ELISA: 1:200.|
|Other Names||Histone 3|
|Formulation||In PBS with 0.05% sodium azide and 0.05% ProClin 300.|
|Handling||The antibody solution should be gently mixed before use.|
|Reconstitution & Storage||-20 °C|
|Precautions||H3K27me3 polyclonal antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin, limiting DNA accessibility to the cellular machineries which require DNA as a template. Histones thereby play a central role in transcription regulation, DNA repair, DNA replication and chromosomal stability. DNA accessibility is regulated via a complex set of post-translational modifications of histones, also called histone code, and nucleosome remodeling.|
|Cellular Location||Nucleus. Chromosome.|
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Provided below are standard protocols that you may find useful for product applications.
Histones are the main constituents of the protein part of chromosomes of eukaryotic cells. They are rich in the amino acids arginine and lysine and have been greatly conserved during evolution. Histones pack the DNA into tight masses of chromatin. Two core histones of each class H2A, H2B, H3 and H4 assemble and are wrapped by 146 base pairs of DNA to form one octameric nucleosome. Histone tails undergo numerous post-translational modifications, which either directly or indirectly alter chromatin structure to facilitate transcriptional activation or repression or other nuclear processes. In addition to the genetic code, combinations of the different histone modifications reveal the so-called “histone code”. Histone methylation and demethylation is dynamically regulated by respectively histone methyl transferases and histone demethylases. Trimethylation of histone H3K27 is associated with gene repression.
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