ABE1859
Anti-KAP-1/TRIM28 Antibody
serum, from rabbit
Synonym(s):
Transcription intermediary factor 1-beta, TIF1-beta, E3 SUMO-protein ligase TRIM28, KRAB-associated protein 1, KAP-1, KRAB-interacting protein 1, KRIP-1, Nuclear corepressor KAP-1, RING finger protein 96, Tripartite motif-containing protein 28, KAP-1/TRI
Sign Into View Organizational & Contract Pricing
All Photos(4)
About This Item
UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41
Recommended Products
biological source
rabbit
Quality Level
antibody form
serum
antibody product type
primary antibodies
clone
polyclonal
species reactivity
mouse, human
technique(s)
immunocytochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable
NCBI accession no.
UniProt accession no.
shipped in
dry ice
target post-translational modification
unmodified
Gene Information
mouse ... Trim28(21849)
General description
Transcription intermediary factor 1-beta (UniProt Q13263; also known as E3 SUMO-protein ligase TRIM28, KAP-1, KRAB-associated protein 1, KRAB-interacting protein 1, KRIP-1, Nuclear corepressor KAP-1, Protein phosphatase 1 regulatory subunit 157, RING finger protein 96, TIF1-beta, Transcriptional intermediary factor 1-beta, Tripartite motif-containing 28, Tripartite motif-containing protein 28) is encoded by the TRIM28 (also known as KAP1, PPP1R157, RNF96, TF1B, TIF1B) gene (Gene ID 10155) in human.
Kruppel-associated box-/KRAB-associated protein 1 (KAP-1) is a transcriptional co-repressor that selectively targets the KRAB domain of zinc finger protein-based transcription factors with its N-terminal tripartite RBCC (RING, b-box, coiled-coil) domain. KAP-1 uses its C-terminal PxVxL motif and the PHD-Bromo domain to recruit chromatin modifiers, such as heterochromatin protein 1 (HP-1), Histone-lysine N-methyltransferase SETDB1, nucleosome remodeling and deacetylation (NuRD) complex, and histone deacetylases (HDACs), for transcriptional repression. KAP-1 also plays an essential role in the DNA damage response (DDR). Upon DNA damage, KAP-1 is rapidly phosphorylated by Ataxia telangiectasia mutated (ATM) on Ser824, causing chromatin relaxation to facilitate DNA repair. In addition, SIRT1-mediated KAP-1 deacetylation is reported to stabilize KAP1 and 53BP1 interaction, resulting in an enhancement of NHEJ-mediated repair efficiency in a KAP-1 pSer824-independent manner.
Kruppel-associated box-/KRAB-associated protein 1 (KAP-1) is a transcriptional co-repressor that selectively targets the KRAB domain of zinc finger protein-based transcription factors with its N-terminal tripartite RBCC (RING, b-box, coiled-coil) domain. KAP-1 uses its C-terminal PxVxL motif and the PHD-Bromo domain to recruit chromatin modifiers, such as heterochromatin protein 1 (HP-1), Histone-lysine N-methyltransferase SETDB1, nucleosome remodeling and deacetylation (NuRD) complex, and histone deacetylases (HDACs), for transcriptional repression. KAP-1 also plays an essential role in the DNA damage response (DDR). Upon DNA damage, KAP-1 is rapidly phosphorylated by Ataxia telangiectasia mutated (ATM) on Ser824, causing chromatin relaxation to facilitate DNA repair. In addition, SIRT1-mediated KAP-1 deacetylation is reported to stabilize KAP1 and 53BP1 interaction, resulting in an enhancement of NHEJ-mediated repair efficiency in a KAP-1 pSer824-independent manner.
Specificity
Expected to react with both spliced isoforms.
Immunogen
Epitope: Bromo domain
GST-tagged recombinant protein corresponding to the Bromo domain of human KAP-1/TRIM28.
Application
Anti-KAP-1/TRIM28 Antibody is an antibody against KAP-1/TRIM28 for use in Western Blotting, Immunoprecipitation, Immunocytochemistry.
Research Category
Epigenetics & Nuclear Function
Epigenetics & Nuclear Function
Research Sub Category
Nuclear Receptors
Nuclear Receptors
Western Blotting Analysis: A representative lot detected the endogenous KAP-1/Trim28 only in the immunoprecipitats of exogenously expressed FLAG-SirT1 constructs that contain the KAP-1/Trim28-binding domain (a.a. 143-213) using various transfected HEK293T cells (Lin, Y.H., et al. (2015). PLoS One. 10(4):e0123935).
Western Blotting Analysis: A representative lot detected similar level of endogenous KAP-1/Trim28 in HEK293T cells regardless of ionizing radiation treatment or shRNA-mediated SirT1 downregulation (Lin, Y.H., et al. (2015). PLoS One. 10(4):e0123935).
Western Blotting Analysis: A representative lot detected KAP-1/Trim28 in whole cell lysates, but not in BAP1, FoxK1, or FoxK2 immunoprecipitate (Okino, Y., et al. (2015). J. Biol. Chem. 16;290(3):1580-1591).
Immunoprecipitation Analysis: 10 µL from a representative lot immunoprecipitated KAP-1/Trim28 from HEK293T cell lysates (Courtesy of Dr. Zhenkun Lou, Mayo clinic, Rochester, MN).
Immunocytochemistry Analysis: An 1:1000 dilution from a representative lot detected KAP-1/Trim28 nuclear localization in U2OS cells (Courtesy of Dr. Zhenkun Lou, Mayo clinic, Rochester, MN).
Immunoprecipitation Analysis: A representative lot co-immunoprecipitated SirT1 with KAP-1/Trim28 from HEK293T cell lysates (Lin, Y.H., et al. (2015). PLoS One. 10(4):e0123935).
Western Blotting Analysis: An 1:1000 dilution from a representative lot detected KAP-1/Trim28 in mouse embryonic fibroblast (MEF) lysate, as well as downregulated KAP-1/Trim28 in lysates from KAP1 siRNA-treated HEK293T cells (Courtesy of Dr. Zhenkun Lou, Mayo clinic, Rochester, MN).
Western Blotting Analysis: A representative lot detected similar level of endogenous KAP-1/Trim28 in HEK293T cells regardless of ionizing radiation treatment or shRNA-mediated SirT1 downregulation (Lin, Y.H., et al. (2015). PLoS One. 10(4):e0123935).
Western Blotting Analysis: A representative lot detected KAP-1/Trim28 in whole cell lysates, but not in BAP1, FoxK1, or FoxK2 immunoprecipitate (Okino, Y., et al. (2015). J. Biol. Chem. 16;290(3):1580-1591).
Immunoprecipitation Analysis: 10 µL from a representative lot immunoprecipitated KAP-1/Trim28 from HEK293T cell lysates (Courtesy of Dr. Zhenkun Lou, Mayo clinic, Rochester, MN).
Immunocytochemistry Analysis: An 1:1000 dilution from a representative lot detected KAP-1/Trim28 nuclear localization in U2OS cells (Courtesy of Dr. Zhenkun Lou, Mayo clinic, Rochester, MN).
Immunoprecipitation Analysis: A representative lot co-immunoprecipitated SirT1 with KAP-1/Trim28 from HEK293T cell lysates (Lin, Y.H., et al. (2015). PLoS One. 10(4):e0123935).
Western Blotting Analysis: An 1:1000 dilution from a representative lot detected KAP-1/Trim28 in mouse embryonic fibroblast (MEF) lysate, as well as downregulated KAP-1/Trim28 in lysates from KAP1 siRNA-treated HEK293T cells (Courtesy of Dr. Zhenkun Lou, Mayo clinic, Rochester, MN).
Quality
Evaluated by Western Blotting in HEK293T cell lysate.
Western Blotting Analysis: A 1:2,000 dilution of this antibody detected KAP-1/TRIM28 in 10 µg of HEK293T cell lysate.
Western Blotting Analysis: A 1:2,000 dilution of this antibody detected KAP-1/TRIM28 in 10 µg of HEK293T cell lysate.
Target description
~110 kDa observed
Physical form
Rabbit polyclonal antibody in serum with 0.05% sodium azide.
Unpurified
Storage and Stability
Stable for 1 year at -20°C from date of receipt.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
Handling Recommendations: Upon receipt and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.
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.
Not finding the right product?
Try our Product Selector Tool.
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Yuki Okino et al.
The Journal of biological chemistry, 290(3), 1580-1591 (2014-12-03)
BRCA1-associated protein 1 (BAP1), which is frequently mutated in cancer, functions as a deubiquitinase (DUB) for histone H2A. Although BAP1 interacts with a transcriptional regulator, HCF-1, and transcription factors FoxK1 and FoxK2, how BAP1 controls gene expression remains unclear. This
Yi-Hui Lin et al.
PloS one, 10(4), e0123935-e0123935 (2015-04-24)
Homologous recombination and non-homologous end joining are two major DNA double-strand-break repair pathways. While HR-mediated repair requires a homologous sequence as the guiding template to restore the damage site precisely, NHEJ-mediated repair ligates the DNA lesion directly and increases the
Lindsay Kosack et al.
Cancer cell, 35(1), 125-139 (2019-01-16)
The marsupial Tasmanian devil (Sarcophilus harrisii) faces extinction due to transmissible devil facial tumor disease (DFTD). To unveil the molecular underpinnings of this transmissible cancer, we combined pharmacological screens with an integrated systems-biology characterization. Sensitivity to inhibitors of ERBB tyrosine
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service