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Key Documents

MABE666

Sigma-Aldrich

Anti-Heterochromatin Protein-1 Antibody, clone 4C12.1

clone 4C12.1, from mouse

Synonym(s):

Chromobox protein homolog 5, Antigen p25, HP1 alpha

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

4C12.1, monoclonal

species reactivity

mouse, human

packaging

antibody small pack of 25 μg

technique(s)

immunohistochemistry: suitable (paraffin)
western blot: suitable

isotype

IgG2aκ

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

Gene Information

human ... CBX5(23468)

General description

Chromobox protein homolog 5 (UniProt: P45973; also known as Antigen p25, Heterochromatin protein 1 homolog alpha, HP1 alpha) is encoded by the CBX5 (also known as HP1A) gene (Gene ID: 23468) in human. Chromobox protein homolog 5 is a component of centromeric and pericentromeric heterochromatin that associates with chromosomes during mitosis. Chromobox protein homolog 5 associates specifically with chromatin during metaphase and anaphase. It recognizes and binds histone H3 tails methylated at Lys9 (H3K9me), leading to epigenetic repression. In contrast, it is excluded from chromatin when Tyr41 of histone H3 is phosphorylated. It can interact with lamin-B receptor (LBR) and this interaction can contribute to the association of the heterochromatin with the inner nuclear membrane. It is also involved in the formation of functional kinetochore through interaction with MIS12 complex proteins.

Immunogen

GST/His-tagged recombinant fraction corresponding to 68 amino acids from the internal region of human Heterochromatin protein 1 homolog alpha.

Application

Anti-Heterochromatin Protein-1 , clone 4C12.1, Cat. No. MABE666, is a highly specific mouse monoclonal antibody that targets Heterochromatin Protein-1 alpha and has been tested in Immunohistochemistry (Paraffin) and Western Blotting.
Immunohistochemistry Analysis: A 1:50-250 dilution from a representative lot detected Heterochromatin Protein-1 in human tonsil, human pancreas, and human uterus tissues.
Research Category
Epigenetics & Nuclear Function

Quality

Evaluated by Western Blotting in NIH/3T3 cell lysate.

Western Blotting Analysis: 0.5 µg/mL of this antibody detected Heterochromatin Protein-1 in 10 µg of NIH/3T3 cell lysate.

Target description

~23 kDa observed; 22.22 kDa calculated. Uncharacterized bands may be observed in some lysate(s).

Linkage

Replaces: MAB3584

Physical form

Format: Purified
Protein G purified
Purified mouse monoclonal antibody IgG2a in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

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

Other Notes

Concentration: Please refer to lot specific datasheet.

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.

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WGK

WGK 1


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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