Anti-CBX1 (HP1 beta) Antibody, clone 5E9.1

32160702

NA.41

Chromobox protein homolog 1 (UniProt: P83916; also known as HP1Hsbeta, heterochromatin protein 1 homolog beta, heterochromatin protein p25, M31, Modifier 1 protein, p25 beta) is encoded by the CBX1 (also known as CBX) gene (Gene ID:10951) in human. Chromobox protein homolog 1 is a homodimeric nuclear protein that is a component of heterochromatin. It is expressed in all adult and embryonic tissues. It is essential for formation of and gene repression in heterochromatin. It recognizes and binds histone H3 tails methylated at Lys-9, leading to epigenetic repression. Also interacts with lamin B receptor (LBR) to contribute to the association of the heterochromatin with the inner nuclear membrane. The human HP1 homolog CBX1 preferentially recognize H3K9me3 (Peptide binding specificity Kd = 5 mM). However, upon substitution of Threonine 6 to Alanine reduces its affinity significantly (Kd = 45 mM). (Ref.: Kaustov, L., et al. (2011). J. Biol. Chem. 286(1): 521-529).

Clone 5E9.1 specifically detects human Chromobox protein homolog 1 (CBX1). It targets an epitope with in 60 amino acids from the internal region.

GST/His-tagged recombinant protein fragment corresponding to 60 amino acids from the internal region of human Chromobox protein homolog 1 (CBX1).

Research Category
Epigenetics & Nuclear Function
Anti-CBX1 (HP1 beta) antibody, clone 5E9.1, Cat. No. MABE664, is a highly specific mouse monoclonal antibody that targets CBX1 and has been tested in Western Blotting.

Evaluated by Western Blotting in HeLa cell lysate.

Western Blotting Analysis: 1 µg/mL of this antibody detected CBX1 (HP1 beta) in 10 µg of HeLa cell lysate.

Protein G purified
Purified mouse monoclonal antibody IgG1 in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Format: Purified

Concentration: Please refer to lot specific datasheet.

100

mouse

purified immunoglobulin

primary antibodies

5E9.1, monoclonal

human

antibody small pack of 25 μg

western blot: suitable

IgG1κ

NP_001120700

P83916

ambient

human ... CBX1(10951)

~23 kDa observed; 21.42 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Stable for 1 year at 2-8°C from date of receipt.

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