Anti-CBX1 / HP1 beta antibody (ab10478)
Key features and details
- Rabbit polyclonal to CBX1 / HP1 beta
- Suitable for: WB, IP
- Knockout validated
- Reacts with: Mouse, Rat, Human, Marsupial
- Isotype: IgG
Overview
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Product name
Anti-CBX1 / HP1 beta antibody
See all CBX1 / HP1 beta primary antibodies -
Description
Rabbit polyclonal to CBX1 / HP1 beta -
Host species
Rabbit -
Specificity
ab10478 recognises a band at 25 kDa, which is attributed to CBX1 / HP1 beta. -
Tested applications
Suitable for: WB, IPmore details -
Species reactivity
Reacts with: Mouse, Rat, Human, Marsupial
Predicted to work with: Chicken, Hamster, Drosophila melanogaster
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Immunogen
Synthetic peptide corresponding to Human CBX1/ HP1 beta aa 150 to the C-terminus (C terminal) conjugated to keyhole limpet haemocyanin.
(Peptide available asab30861)
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.40
Preservative: 0.02% Sodium azide
Constituent: PBS
Batches of this product that have a concentration < 1mg/ml may have BSA added as a stabilising agent. If you would like information about the formulation of a specific lot, please contact our scientific support team who will be happy to help. -
Concentration information loading... -
Purity
Immunogen affinity purified -
Clonality
Polyclonal -
Isotype
IgG -
Research areas
Associated products
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Compatible Secondaries
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Immunizing Peptide (Blocking)
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Isotype control
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Recombinant Protein
Applications
Our Abpromise guarantee covers the use of ab10478 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Abreviews | Notes |
|---|---|---|
| WB | 1/500 - 1/1000. Detects a band of approximately 25 kDa (predicted molecular weight: 21 kDa). | |
| IP | Use at an assay dependent concentration. |
Target
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Function
Component of heterochromatin. Recognizes and binds histone H3 tails methylated at 'Lys-9', leading to epigenetic repression. Interaction with lamin B receptor (LBR) can contribute to the association of the heterochromatin with the inner nuclear membrane. -
Tissue specificity
Expressed in all adult and embryonic tissues. -
Sequence similarities
Contains 2 chromo domains. -
Post-translational
modificationsNot phosphorylated.
Ubiquitinated. -
Cellular localization
Nucleus. Unassociated with chromosomes during mitosis. - Information by UniProt
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Database links
- Entrez Gene: 10951 Human
- Entrez Gene: 12412 Mouse
- Entrez Gene: 360609 Rat
- Omim: 604511 Human
- SwissProt: P83916 Human
- SwissProt: P83917 Mouse
- Unigene: 77254 Human
- Unigene: 29055 Mouse
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Alternative names
- CBX 1 antibody
- CBX antibody
- Cbx1 antibody
see all
Images
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Western blot - Anti-CBX1 / HP1 beta antibody (ab10478)Lane 1: Wild type HAP1 whole cell lysate (20 µg)
Lane 2: CBX1 knockout HAP1 whole cell lysate (20 µg)
Lane 3: MCF7 whole cell lysate (20 µg)
Lane 4: A431 whole cell lysate (20 µg)Lanes 1 - 4: Merged signal (red and green). Green - ab10478 observed at 26 kDa. Red - loading control, ab8245, observed at 37 kDa.
ab10478 was shown to recognize CBX1 when CBX1 knockout samples were used, along with additional cross-reactive bands. Wild-type and CBX1 knockout samples were subjected to SDS-PAGE. Ab10478 and ab8245 (Mouse anti GAPDH loading control) were incubated overnight at 4°C at 1000 dilution and 1/10000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed ab216773 and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed ab216776 secondary antibodies at 1/10000 dilution for 1 hour at room temperature before imaging.
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Western blot - Anti-CBX1 / HP1 beta antibody (ab10478)All lanes : Anti-CBX1 / HP1 beta antibody (ab10478) at 1 µg/ml
Lane 1 : HeLa whole cell lysate
Lane 2 : HeLa nuclear lysate
Lane 3 : A431 cell lysate
Lane 4 : MCF7 cell lysate
Lane 5 : HEK293 cell lysate
Lane 6 : HeLa whole cell lysate withCBX1 / HP1 beta peptide (ab30861) at 1 µg/ml
Lane 7 : HeLa nuclear lysate withCBX1 / HP1 beta peptide (ab30861) at 1 µg/ml
Lane 8 : A431 lysate withCBX1 / HP1 beta peptide (ab30861) at 1 µg/ml
Lane 9 : MCF7 cell lysate withCBX1 / HP1 beta peptide (ab30861) at 1 µg/ml
Lane 10 : HEK293 cell lysate withCBX1 / HP1 beta peptide (ab30861) at 1 µg/ml
Lysates/proteins at 20 µg per lane.
Secondary
All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab6721) at 1/5000 dilution
Predicted band size: 21 kDa
Observed band size: 25 kDa why is the actual band size different from the predicted?
Additional bands at: 37 kDa (possible cross reactivity), 47 kDa (possible cross reactivity) -
Immunoprecipitation - Anti-CBX1 / HP1 beta antibody (ab10478)CBX1 / HP1 beta was immunoprecipitated using 0.5mg Hela whole cell extract, 5µg of Rabbit polyclonal to CBX1 / HP1 beta and 50µl of protein G magnetic beads (+). No antibody was added to the control (-).
The antibody was incubated under agitation with Protein G beads for 10min, Hela whole cell extract lysate diluted in RIPA buffer was added to each sample and incubated for a further 10min under agitation.
Proteins were eluted by addition of 40µl SDS loading buffer and incubated for 10min at 70oC; 10µl of each sample was separated on a SDS PAGE gel, transferred to a nitrocellulose membrane, blocked with 5% BSA and probed with ab10478.
Secondary: Clean blot (HRP conjugate) at 1/1000 dilution.
Band: 20ka: CBX1 / HP1 beta. -
Western blot - Anti-CBX1 / HP1 beta antibody (ab10478)Anti-CBX1 / HP1 beta antibody (ab10478) at 1 µg/ml + PC12 (Rat adrenal pheochromocytoma cell line) Whole Cell Lysate at 10 µg
Secondary
Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 21 kDa
Observed band size: 27 kDa why is the actual band size different from the predicted?
Additional bands at: 90 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 4 minutes -
Western blot - Anti-CBX1 / HP1 beta antibody (ab10478)
Protocols
Datasheets and documents
References (25)
ab10478 has been referenced in 25 publications.
- Yang YF et al. CBX1 Indicates Poor Outcomes and Exerts Oncogenic Activity in Hepatocellular Carcinoma. Transl Oncol 11:1110-1118 (2018). PubMed: 30031230
- Castanotto D et al. A stress-induced response complex (SIRC) shuttles miRNAs, siRNAs, and oligonucleotides to the nucleus. Proc Natl Acad Sci U S A 115:E5756-E5765 (2018). PubMed: 29866826
- Sikorski K et al. A high-throughput pipeline for validation of antibodies. Nat Methods 15:909-912 (2018). PubMed: 30377371
- Hoffmeister H et al. CHD3 and CHD4 form distinct NuRD complexes with different yet overlapping functionality. Nucleic Acids Res 45:10534-10554 (2017). PubMed: 28977666
- Magaraki A et al. Silencing markers are retained on pericentric heterochromatin during murine primordial germ cell development. Epigenetics Chromatin 10:11 (2017). IF ; Mouse . PubMed: 28293300
