Anti-CBX1 / HP1 beta antibody (ab10478)
- Datasheet
- References (22)
- Protocols
Overview
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Product nameAnti-CBX1 / HP1 beta antibody
See all CBX1 / HP1 beta primary antibodies -
DescriptionRabbit polyclonal to CBX1 / HP1 beta
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Host speciesRabbit
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Specificityab10478 recognises a band at 25 kDa, which is attributed to CBX1 / HP1 beta.
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Tested applicationsSuitable for: WB, IHC-P, ICC/IF, IPmore details
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Species reactivityReacts with: Mouse, Rat, Human, Marsupial
Predicted to work with: Chicken, Hamster, Drosophila melanogaster
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Immunogen
Synthetic peptide, conjugated to KLH, derived from within residues 150 to the C-terminus of Human HP1 beta.
Read Abcam's proprietary immunogen policy . -
Positive control
- This antibody gave a positive signal in the following lysates: HeLa Whole Cell, HeLa Nuclear, A431 Whole Cell, MCF7 Whole Cell, HEK293 Whole Cell, PC12 Whole Cell
Properties
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FormLiquid
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Storage instructionsShipped 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.
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Storage bufferPreservative: 0.02% Sodium Azide
Constituents: 1% BSA, PBS, pH 7.4 -
Concentration information loading... -
PurityImmunogen affinity purified
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ClonalityPolyclonal
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IsotypeIgG
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Research areas
Associated products
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Compatible Secondaries
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Immunizing Peptide (Blocking)
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Isotype control
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). | |
| IHC-P | 1/100. | |
| ICC/IF | 1/200. | |
| IP | Use at an assay dependent concentration. |
Target
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FunctionComponent 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.
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Tissue specificityExpressed in all adult and embryonic tissues.
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Sequence similaritiesContains 2 chromo domains.
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Post-translational
modificationsNot phosphorylated.
Ubiquitinated. -
Cellular localizationNucleus. 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. -
Immunocytochemistry/ Immunofluorescence - Anti-CBX1 / HP1 beta antibody (ab10478)This image is courtesy of an Abreview submitted by Dr Alexander Rappab10478 at 1/200 staining human cervix cells by ICC/IF. The cells were fixed in 4% PFA for 15 minutes and permeabilized for 15 minutes in 0.5% Triton X100 in PBS, prior to incubation with the antibody fort 1 hour. A Cy2 ® conjugated goat anti-rabbit antibody was used as the secondary.
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Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-CBX1 / HP1 beta antibody (ab10478)Image courtesy of Human Protein Atlas
ab10478 staining CBX1 / HP1 in human testis, showing a distinct and strong staining pattern in ductus seminiferus cells. Paraffin embedded human skin tissue was incubated with ab10478 (1/400 dilution) for 30 mins at room temperature. Antigen retrieval was performed by heat induction in citrate buffer pH 6.
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ab10478 was tested in a tissue microarray (TMA) containing a wide range of normal and cancer tissues as well as a cell microarray consisting of a range of commonly used, well characterised human cell lines. Further results for this antibody can be found at www.proteinatlas.org -
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)
Datasheets and documents
Protocols
References
This product has been referenced in:
- Yang YF et al. CBX1 Indicates Poor Outcomes and Exerts Oncogenic Activity in Hepatocellular Carcinoma. Transl Oncol 11:1110-1118 (2018). Read more (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). Read more (PubMed: 29866826) »
