Overview
- Product nameAnti-KAT3A / CBP antibody - ChIP GradeSee all KAT3A / CBP primary antibodies ...
- DescriptionRabbit polyclonal to KAT3A / CBP - ChIP Grade
- Tested applicationsIP, ChIP more details
- Species reactivityReacts with: Human
Predicted to work with: Mouse - Immunogen
Immunogen was a synthetic peptide, which represented a portion of human CREB binding protein encoded within exon 33 (LocusLink ID 1387)(between residues 2392 and the c-terminus (residue 2442) according to Swiss-Prot entry Q92793).
- General notes
Cyclic AMP-responsive enhancer binding protein (CREB) binding protein (CBP) and p300 are closely related transcriptional coactivators that have been shown to directly interact with many different DNA-binding transcription factors including nuclear hormone receptors, CREB (cyclic AMP-responsive enhancer binding protein), c-Fos, c-Jun/v-Jun, c-Myb/v-Myb, TFIIB and MyoD.Both CBP and p300 have been shown to display histone acetyltransferase (HAT) activity, capable of acetylating all four core histone particles in nucleosomes.As a result of HAT activity, it has been suggested CBP and p300 may play a direct role in activating chromatin for transcription.Single point mutations in CBP have been proposed as causative factors in the developmental abnormalities of Rubinstein-Taybi syndrome (RTS).Although both CBP and p300 appear to function similarly, the inability of p300 to rescue CBP malfunction iRTS suggests intrinsic functional differences between CBP and p300.
Properties
- FormLiquid
- Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
- Storage bufferPreservative: 0.1% Sodium Azide
Constituents: 8mM PBS, 60mM Citrate, 150mM Tris, pH 7-8 -
Concentration information loading... - PurityImmunogen affinity purified
- Purification notesAntibodies were affinity purified using the peptide immobilized on solid support.
- Primary antibody notes Cyclic AMP-responsive enhancer binding protein (CREB) binding protein (CBP) and p300 are closely related transcriptional coactivators that have been shown to directly interact with many different DNA-binding transcription factors including nuclear hormone receptors, CREB (cyclic AMP-responsive enhancer binding protein), c-Fos, c-Jun/v-Jun, c-Myb/v-Myb, TFIIB and MyoD.Both CBP and p300 have been shown to display histone acetyltransferase (HAT) activity, capable of acetylating all four core histone particles in nucleosomes.As a result of HAT activity, it has been suggested CBP and p300 may play a direct role in activating chromatin for transcription.Single point mutations in CBP have been proposed as causative factors in the developmental abnormalities of Rubinstein-Taybi syndrome (RTS).Although both CBP and p300 appear to function similarly, the inability of p300 to rescue CBP malfunction iRTS suggests intrinsic functional differences between CBP and p300.
- Clonality Polyclonal
- IsotypeIgG
- Research Areas
Applications
Our Abpromise guarantee covers the use of ab10490 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Notes |
|---|---|
| IP | |
| ChIP |
IP: Use at a concentration of 1 - 4 µg/ml.
Not tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
Target
- FunctionAcetylates histones, giving a specific tag for transcriptional activation. Also acetylates non-histone proteins, like NCOA3 coactivator. Binds specifically to phosphorylated CREB and enhances its transcriptional activity toward cAMP-responsive genes. Acts as a coactivator of ALX1 in the presence of EP300.
- Involvement in diseaseNote=Chromosomal aberrations involving CREBBP may be a cause of acute myeloid leukemias. Translocation t(8;16)(p11;p13) with MYST3/MOZ; translocation t(11;16)(q23;p13.3) with MLL/HRX; translocation t(10;16)(q22;p13) with MYST4/MORF. MYST3-CREBBP may induce leukemia by inhibiting RUNX1-mediated transcription.
Defects in CREBBP are a cause of Rubinstein-Taybi syndrome type 1 (RSTS1) [MIM:180849]. RSTS1 is an autosomal dominant disorder characterized by craniofacial abnormalities, broad thumbs, broad big toes, mental retardation and a propensity for development of malignancies. - Sequence similaritiesContains 1 bromo domain.
Contains 1 KIX domain.
Contains 2 TAZ-type zinc fingers.
Contains 1 ZZ-type zinc finger. - DomainThe KIX domain mediates binding to HIV-1 Tat.
- Post-translational
modificationsMethylation of the KIX domain by CARM1 blocks association with CREB. This results in the blockade of CREB signaling, and in activation of apoptotic response.
Phosphorylated upon DNA damage, probably by ATM or ATR.
Sumoylation negatively regulates transcriptional activity via the recruitment of DAAX. - Cellular localizationCytoplasm. Nucleus. Recruited to nuclear bodies by SS18L1/CREST. In the presence of ALX1 relocalizes from the cytoplasm to the nucleus.
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Database links
- Entrez Gene: 1387 Human
- Entrez Gene: 12914 Mouse
- Omim: 600140 Human
- SwissProt: Q92793 Human
- SwissProt: P45481 Mouse
- Unigene: 459759 Human
- Unigene: 132238 Mouse
- Unigene: 392384 Mouse
Target information above from: UniProt accession
Q92793
The UniProt Consortium
The Universal Protein Resource (UniProt) in 2010
Nucleic Acids Res. 38:D142-D148 (2010)
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Alternative names
- CBP antibodyCBP/p300 antibodyCBP_HUMAN antibody
- CREB binding protein antibodyCREB-binding protein antibodyCREBBP antibodyCyclic AMP responsive enhancer binding protein antibodyCyclic AMP-responsive enhancer binding protein antibodyKAT3A antibodyRSTS antibodyRTS antibodyRubinstein Taybi syndrome antibodyRubinstein-Taybi syndrome antibody
see all
Anti-KAT3A / CBP antibody - ChIP Grade images
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ab10490 immunoprecipitation of CREB Binding Protein.
Samples: Nuclear (NE) or cytoplasmic (S100) extract (10 mg) from HeLa cells. Antibody: ab10490 used at 20
µ g/10 mg extract. Detection: Coomassie Brilliant Blue R250 staining of SDS-PAGE gel followed by mass spectrometry to confirm the identity of the band that is CREB Binding Protein. -
Sonicated chromatin prepared from U2OS cells was subjected to the ChIP procedure with ab10490 to CBP. Immunoprecipitated chromatin was analysed in the promoter region of c-FOS (active) and in exon 2 of MYO-D (inactive), values are % of inputs. 2–4 µg of ab10490 and 1-2x106 cells were used in each ChIP experiment.
Sergei Denissov, Prof. Henk Stunnenberg lab, University Nijmengen, NL
References for Anti-KAT3A / CBP antibody - ChIP Grade (ab10490)
ab10490 has not yet been referenced specifically in any publications.

