Rabbit Polyclonal KAP1 antibody. Suitable for IP, WB, ICC/IF and reacts with Human, Rat, Mouse, Chicken samples. Cited in 2 publications. Immunogen corresponding to Recombinant Fragment Protein within Human TRIM28 aa 400-650.
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Publications
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- Nature communications 11:24012020Genotoxic stress triggers the activation of IRE1α-dependent RNA decay to modulate the DNA damage response.
- Molecular oncology 10:1196-2062016USP37 deubiquitinates Cdt1 and contributes to regulate DNA replication.
Key facts
- Isotype
- IgG
- Host species
- Rabbit
- Storage buffer
Preservative: 0.05% Sodium azide
- Form
- Liquid
- Clonality
- Polyclonal
Immunogen
- Recombinant Fragment Protein within Human TRIM28 aa 400-650. The exact immunogen used to generate this antibody is proprietary information. Database link Q13263
Reactivity data
Select an application| IP | WB | ICC/IF | |
|---|---|---|---|
| Human | Tested | Tested | Tested |
| Mouse | Expected | Tested | Expected |
| Rat | Expected | Tested | Expected |
| Chicken | Expected | Tested | Expected |
IP
TestedTested
| Species | Dilution info | Notes |
|---|---|---|
Species Human | Dilution info - | Notes - |
ExpectedExpected
| Species | Dilution info | Notes |
|---|---|---|
Species Rat, Mouse, Chicken | Dilution info Use at an assay dependent concentration. | Notes - |
WB
TestedTested
| Species | Dilution info | Notes |
|---|---|---|
Species Human | Dilution info 1/3000 | Notes - |
Species Rat | Dilution info 1/3000 | Notes - |
Species Mouse | Dilution info 1/3000 | Notes - |
Species Chicken | Dilution info 1/3000 | Notes - |
ICC/IF
TestedTested
| Species | Dilution info | Notes |
|---|---|---|
Species Human | Dilution info 1/2000 | Notes - |
ExpectedExpected
| Species | Dilution info | Notes |
|---|---|---|
Species Rat, Mouse, Chicken | Dilution info Use at an assay dependent concentration. | Notes - |
Associated Products
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Target data
Function
Nuclear corepressor for KRAB domain-containing zinc finger proteins (KRAB-ZFPs). Mediates gene silencing by recruiting CHD3, a subunit of the nucleosome remodeling and deacetylation (NuRD) complex, and SETDB1 (which specifically methylates histone H3 at 'Lys-9' (H3K9me)) to the promoter regions of KRAB target genes. Enhances transcriptional repression by coordinating the increase in H3K9me, the decrease in histone H3 'Lys-9 and 'Lys-14' acetylation (H3K9ac and H3K14ac, respectively) and the disposition of HP1 proteins to silence gene expression. Recruitment of SETDB1 induces heterochromatinization. May play a role as a coactivator for CEBPB and NR3C1 in the transcriptional activation of ORM1. Also a corepressor for ERBB4. Inhibits E2F1 activity by stimulating E2F1-HDAC1 complex formation and inhibiting E2F1 acetylation. May serve as a partial backup to prevent E2F1-mediated apoptosis in the absence of RB1. Important regulator of CDKN1A/p21(CIP1). Has E3 SUMO-protein ligase activity toward itself via its PHD-type zinc finger. Also specifically sumoylates IRF7, thereby inhibiting its transactivation activity. Ubiquitinates p53/TP53 leading to its proteasomal degradation; the function is enhanced by MAGEC2 and MAGEA2, and possibly MAGEA3 and MAGEA6. Mediates the nuclear localization of KOX1, ZNF268 and ZNF300 transcription factors. In association with isoform 2 of ZFP90, is required for the transcriptional repressor activity of FOXP3 and the suppressive function of regulatory T-cells (Treg) (PubMed:23543754). Probably forms a corepressor complex required for activated KRAS-mediated promoter hypermethylation and transcriptional silencing of tumor suppressor genes (TSGs) or other tumor-related genes in colorectal cancer (CRC) cells (PubMed:24623306). Required to maintain a transcriptionally repressive state of genes in undifferentiated embryonic stem cells (ESCs) (PubMed:24623306). In ESCs, in collaboration with SETDB1, is also required for H3K9me3 and silencing of endogenous and introduced retroviruses in a DNA-methylation independent-pathway (By similarity). Associates at promoter regions of tumor suppressor genes (TSGs) leading to their gene silencing (PubMed:24623306). The SETDB1-TRIM28-ZNF274 complex may play a role in recruiting ATRX to the 3'-exons of zinc-finger coding genes with atypical chromatin signatures to establish or maintain/protect H3K9me3 at these transcriptionally active regions (PubMed:27029610). (Microbial infection) Plays a critical role in the shutdown of lytic gene expression during the early stage of herpes virus 8 primary infection. This inhibition is mediated through interaction with herpes virus 8 protein LANA1.
Alternative names
KAP1, RNF96, TIF1B, TRIM28, Transcription intermediary factor 1-beta, TIF1-beta, E3 SUMO-protein ligase TRIM28, KRAB-associated protein 1, KRAB-interacting protein 1, Nuclear corepressor KAP-1, RING finger protein 96, RING-type E3 ubiquitin transferase TIF1-beta, Tripartite motif-containing protein 28, KAP-1, KRIP-1
Recommended products
Rabbit Polyclonal KAP1 antibody. Suitable for IP, WB, ICC/IF and reacts with Human, Rat, Mouse, Chicken samples. Cited in 2 publications. Immunogen corresponding to Recombinant Fragment Protein within Human TRIM28 aa 400-650.
Key facts
- Isotype
- IgG
- Host species
- Rabbit
- Storage buffer
Preservative: 0.05% Sodium azide
- Form
- Liquid
- Clonality
- Polyclonal
- Immunogen
- Recombinant Fragment Protein within Human TRIM28 aa 400-650. The exact immunogen used to generate this antibody is proprietary information. Database link Q13263
- Purity
- Whole antiserum
- Concentration
Storage
- Shipped at conditions
- Blue Ice
- Appropriate short-term storage duration
- 1-2 weeks
- Appropriate short-term storage conditions
- +4°C
- Appropriate long-term storage conditions
- -20°C
- Aliquoting information
- Upon delivery aliquot
- Storage information
- Avoid freeze / thaw cycle
Notes
Abcam is leading the way to address reproducibility in scientific research with our highly validated recombinant monoclonal and recombinant multiclonal antibodies. Search & select one of Abcam's thousands of recombinant alternatives to eliminate batch-variability and unnecessary animal use.
If you do not find a host species to meet your needs, our catalogue and custom Chimeric range provides scientists the specificity of Abcam's RabMAbs in the species backbone of your choice. Remember to also review our range of edited cell lines, proteins and biochemicals relevant to your target that may help you further your research goals.
Abcam antibodies are extensively validated in a wide range of species and applications, so please check the reagent specifications meet your scientific needs before purchasing. If you have any questions or bespoke requirements, simply visit the Contact Us page to send us an inquiry or contact our Support Team ahead of purchase.
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
KAP1 also known as TRIM28 or TIF1β is a multifunctional protein involved in transcriptional regulation. It has a molecular weight of approximately 87 kDa. This protein is expressed in a wide variety of human tissues where it plays a role as a co-repressor for KRAB domain-containing zinc finger proteins. KAP1 recruits various epigenetic modifiers to silence transcription and this activity depends on its phosphorylation status. You might explore KAP1 using KAP1 ELISA kits and study its post-translational modifications like phosphorylation in various conditions.
- Biological function summary
KAP1 acts as a scaffold protein facilitating the assembly of large protein complexes that include chromatin remodelers and histone deacetylases. It is significant in maintaining chromatin structure and mediating gene silencing. KAP1 phosphorylation serves as a switch between its roles in transcriptional repression and activation. This protein also interacts with heterochromatin protein 1 (HP1) and other TRIM family proteins playing an important role in genomic stability by controlling gene expression and repair mechanisms.
- Pathways
KAP1 participates actively in p53 and DNA damage response pathways. In the p53 pathway KAP1 regulates genes involved in the cell cycle and apoptosis acting in conjunction with the p53 protein. Within the DNA damage response KAP1 modulates the repair of double-strand breaks by interacting with proteins like ATM kinase influencing cellular sensitivity to genotoxic stress. These pathways highlight its importance in maintaining cellular homeostasis and response to external stimuli.
- Associated diseases and disorders
KAP1 has known connections with cancer and neurological disorders due to its regulatory effects on gene expression and genome stability. In cancer aberrant KAP1 activity can lead to unregulated cell proliferation and survival often involving changes in its interaction with the p53 protein. In neurological disorders dysregulation of KAP1 is associated with impaired neural development and neurodegeneration. Altogether these associations highlight KAP1 as a potential target for therapeutic interventions in related diseases.
Product promise
Tested
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Expected
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
Predicted
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
Not recommended
We do not recommend this combination. It is not covered by our product promise.
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3 product images
Western blot - Anti-KAP1 antibody (ab190178)
All lanes: Western blot - Anti-KAP1 antibody (ab190178) at 1/3000 dilution
Lane 1: Human U2OS cell lysate at 20 µg
Lane 2: Human U2OS cells transfected with KAP1 siRNA at 20 µg
Lane 3: Mouse embryo fibroblasts (MEFs) cell lysate at 20 µg
Lane 4: Rat INS1 cell lysate at 20 µg
Lane 5: Chicken DT40 cell lysate at 20 µg
Predicted band size: 88 kDa
Immunoprecipitation - Anti-KAP1 antibody (ab190178)
Western blot analysis with ab190178 of immunoprecipitated U2OS cells extracts:
Lane 1: Input.
Lane 2: Immunoprecipitation with control serum.
Lane 3: Immunoprecipitation with ab190178 (5 μL).
All lanes: Immunoprecipitation - Anti-KAP1 antibody (ab190178)
Predicted band size: 88 kDa
Immunocytochemistry/ Immunofluorescence - Anti-KAP1 antibody (ab190178)
Immunofluorescence analysis of U2OS cells labeling KAP1 using ab190178 at a 1/2000 dilution.
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