HP1 alpha (CBX5) Rabbit Polyclonal Antibody

Specifications

Product Data
Applications	IF, IHC, WB
Recommend Dilution	Western blot: 1/500-1/1000. Immunofluorescence: 1/50-1/200. Immunohistochemistry on paraffin sections: 1/50-1/200.
Reactivity	Human, Mouse
Host	Rabbit
Clonality	Polyclonal
Immunogen	Synthetic peptide, corresponding to amino acids 50-100 of Human CBX5.
Specificity	This antibody detects endogenous levels of HP1-alpha/CBX5 protein. (region surrounding Lys69)
Formulation	Phosphate buffered saline (PBS), pH~7.2 State: Aff - Purified State: Liquid purified Ig fraction (> 95% pure by SDS-PAGE). Preservative: 0.05% Sodium Azide
Concentration	1.0 mg/ml
Purification	Affinity Chromatography using epitope-specific immunogen.
Conjugation	Unconjugated
Storage Condition	Store undiluted at 2-8°C for one month or (in aliquots) at -20°C for longer. Avoid repeated freezing and thawing.
Predicted Protein Size	~ 25 kDa
Gene Name	chromobox 5
Database Link	Entrez Gene 23468 Human UniProt ID P45973
Background	Chromatin assembly factor-1 (CAF-1) is a multisubunit protein complex that comprises three polypeptide subunits known as p150, p60, and p48. CAF-1 is a nucleosome assembly factor that deposits newly synthesized and acetylated histones H3/H4 into nascent chromatin during DNA replication. The p150 subunit of CAF-1 also supports the maintenance of heterochromatin, which requires the synthesis of both new histones and heterochromatin proteins and their orderly assembly during DNA replication. Heterochromatin is characterized as densely coiled chromatin that generally replicates late during S phase, has a low gene density, and contains large blocks of repetitive DNA that is relatively inaccessible to DNA-modifying reagents. In late S phase, p150 directly associates with heterochromatin associated proteins 1 (HP1), HP1α, HP1β and HP1γ. As cells prepare for mitosis, CAF-1 p150 and some HP1 progressively dissociate from heterochromatin, coinciding with the phosphorylation of histone H3. The HP1 proteins reassociate with chromatin at the end of mitosis, as histone H3 is dephosphorylated.
Synonyms	Chromobox protein homolog 5, HP1A, p25, HP1 alpha, HP1-alpha
Reference Data

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