HP1 alpha Antibody (YA981)
(Synonyms: CBX5; HP1A; Chromobox protein homolog 5; Antigen p25; Heterochromatin protein 1 homolog alpha; HP1 alpha)Based on 1 Customer Validation
HP1 alpha Antibody (YA981) is a Mouse-derived and non-conjugated IgG2b monoclonal antibody, targeting to HP1 alpha.
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Host:
Mouse
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Isotype:
IgG
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Application:
WB, IHC-F, IHC-P, ICC/IF
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Reactivity :
Human, Mouse, Rat
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Formulation:
Supplied in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide, pH 7.3.
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Conjugation:
Non-conjugated
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
Applications
| Application |
WB
WB: Western Blot
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IHC-P
IHC-P: Immunohistochemistry-Paraffin
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IHC-F
IHC-F: Immunohistochemistry-Frozen
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ICC/IF
ICC/IF: Immunocytochemistry/
Immunofluorescence |
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| Dilution Ratio | 1:500-1:1000 | 1:50-1:100 | 1:50-1:100 | 1:50-1:200 |
Product Details
HP1 alpha Antibody (YA981) is a Mouse-derived and non-conjugated IgG2b monoclonal antibody, targeting to HP1 alpha.
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Host Mouse
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Clonality Monoclonal
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Species ReactivityHuman, Mouse, Rat
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Observed Molecular WeightObserved band size: 26 kDa
Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
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Calculated Molecular Weight Predicted band size: 22 kDa
Entrez Gene: 23468 Human ; 12419 Mouse ; 300266 Rat
SwissProt: P45973 Human ; Q61686 Mouse ;
OMIM: 604478 Human
Purified recombinant human HP1 alpha protein fragments expressed in E.coli.
Endogenous
Affinity Purified
Non-conjugated
Unmodified
IgG
Product Properties
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Appearance
Solution
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Formulation
Supplied in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide, pH 7.3.
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Concentration
Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration
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Storage & Stability
Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
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Shipping
Shipping with blue ice.
Verification Images
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Western blot analysis of extracts from Raji (lane2(20μg), MCF-7(lane3(20μg), SH-SY5Y(lane4(20μg) and Jurkat(lane5(20μg) using HP1 alpha Antibody (HY-P81280). Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST at 4°C overnight. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80993, 1/10,000) was used in 5% non-fat milk in TBST for 2 hour at room temperature. Goat Anti-Mouse IgG-HRP Secondary Antibody (HY-P8004, 1/10,000) was used for 1 hour at room temperature. -
Immunohistochemical analysis of paraffin-embedded human breast cancer tissue using HP1 alpha Antibody (YA981). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam. -
Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using HP1 alpha Antibody (YA981). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam. -
Immunohistochemical analysis of paraffin-embedded human lung cancer tissue using HP1 alpha Antibody (YA981). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam. -
Immunohistochemical analysis of paraffin-embedded human brain cancer tissue using HP1 alpha Antibody (YA981). The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/100) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with neutral balsam. -
Tyramide signaling amplification based immunofluorescence analysis of paraffin-embedded human breast cancer tissue using HP1 alpha Antibody (YA981) antibody. The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/500) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer and fluorescent tyramide signal amplification system.Immunostaining was performed with Vari Fluor 594 TSA (200×)（HY-D1835）. Tissues were counterstained with DAPI (blue) and mounted with Anti-fade fluorescence mounting medium. -
Tyramide signaling amplification based immunofluorescence analysis of paraffin-embedded human colon cancer tissue using HP1 alpha Antibody (YA981) antibody. The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/500) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer and fluorescent tyramide signal amplification system.Immunostaining was performed with Vari Fluor 594 TSA (200×)（HY-D1835）. Tissues were counterstained with DAPI (blue) and mounted with Anti-fade fluorescence mounting medium. -
Tyramide signaling amplification based immunofluorescence analysis of paraffin-embedded human lung cancer tissue using HP1 alpha Antibody (YA981) antibody. The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/500) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer and fluorescent tyramide signal amplification system.Immunostaining was performed with Vari Fluor 594 TSA (200×)（HY-D1835）. Tissues were counterstained with DAPI (blue) and mounted with Anti-fade fluorescence mounting medium. -
Tyramide signaling amplification based immunofluorescence analysis of paraffin-embedded human brain cancer tissue using HP1 alpha Antibody (YA981) antibody. The section was pre-treated using heat mediated antigen retrieval with Tris/EDTA buffer (pH 9.0) for 20 minutes. The tissues were probed with the primary antibody (HY-P81280, 1/500) overnight at 4℃. The detection was performed using an HRP conjugated compact polymer and fluorescent tyramide signal amplification system.Immunostaining was performed with Vari Fluor 594 TSA (200×)（HY-D1835）. Tissues were counterstained with DAPI (blue) and mounted with Anti-fade fluorescence mounting medium. -
Immunocytochemistry analysis of HeLa cells labeling HP1 alpha with HP1 alpha Antibody (HY-P81280) at 1/100 dilution . Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with HP1 alpha Antibody (HY-P81280) at 1/100 dilution in quick block buffer overnight at 4 ℃.AF488-conjugated Goat Anti-Mouse IgG H&L（HY-P8005, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue). -
Immunocytochemistry analysis of HeLa cells labeling HP1 alpha with HP1 alpha Antibody (HY-P81280) at 1/200 dilution . Cells were fixed in 4% paraformaldehyde for 15 minutes at room temperature, permeabilized with 0.1% Triton X-100 in PBS for 15 minutes at room temperature, then blocked with quick block buffer for 10 minutes at room temperature. Cells were then incubated with HP1 alpha Antibody (HY-P81280) at 1/200 dilution in quick block buffer overnight at 4 ℃.AF488-conjugated Goat Anti-Mouse IgG H&L（HY-P8005, Green) was used as the secondary antibody at 1/1,000 dilution. PBS instead of the primary antibody was used as the secondary antibody only control. The Nuclear counterstain was DAPI (Blue).
Background
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Function
HP1 alpha component of heterochromatin that recognizes and binds histone H3 tails methylated at 'Lys-9' (H3K9me), leading to epigenetic repression. In contrast, it is excluded from chromatin when 'Tyr-41' of histone H3 is phosphorylated (H3Y41ph). May contribute to the association of heterochromatin with the inner nuclear membrane by interactions with the lamin-B receptor (LBR). Involved in the formation of kinetochore through interaction with the MIS12 complex subunit NSL1. Required for the formation of the inner centromere[1][2].
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Subcellular Localization
Nucleus; Chromosome; Chromosome, centromere
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Subunit
Homodimer (PubMed:20819937). Interacts with histone H3 methylated at 'Lys-9' (PubMed:11242053, PubMed:21047797).
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SwissProt ID
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Synonyms
CBX5; HP1A; Chromobox protein homolog 5; Antigen p25; Heterochromatin protein 1 homolog alpha; HP1 alpha
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Research Field
Epigenetics and Nuclear Signaling
Documentation
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Data Sheet (260 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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User Guide for Antibodies (1077 KB)
[1]. Dawson MA, et al. JAK2 phosphorylates histone H3Y41 and excludes HP1alpha from chromatin. Nature. 2009 Oct 8;461(7265):819-22. [Content Brief]
[2]. Kiyomitsu T, et al. Inner centromere formation requires hMis14, a trident kinetochore protein that specifically recruits HP1 to human chromosomes. J Cell Biol. 2010 Mar 22;188(6):791-807. [Content Brief]
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