Product nameAnti-KAT3B / p300 antibody [3G230 / NM-11] - ChIP Grade
See all KAT3B / p300 primary antibodies
DescriptionMouse monoclonal [3G230 / NM-11] to KAT3B / p300 - ChIP Grade
Tested applicationsSuitable for: IP, IHC-P, ICC/IF, IHC-FoFr, WB, ChIP, IHC-Frmore details
Species reactivityReacts with: Rat, Human
Recombinant full length protein corresponding to Human KAT3B/ p300.
- WB: HeLa and Jurkat whole cell lysates.
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.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Constituents: PBS, 6.97% L-Arginine
Concentration information loading...
PurityProtein G purified
Clone number3G230 / NM-11
Light chain typekappa
ChIP Related Products
Our Abpromise guarantee covers the use of ab14984 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IP||Use at an assay dependent concentration.|
|IHC-P||Use a concentration of 1 - 5 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.|
|ICC/IF||Use at an assay dependent concentration.|
|IHC-FoFr||Use at an assay dependent concentration. PubMed: 21705428|
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 300 kDa (predicted molecular weight: 300 kDa).
We recommend using 3% milk as the blocking agent in Western Blot.
|ChIP||Use 2µg for 106 cells.|
|IHC-Fr||Use at an assay dependent concentration.|
FunctionFunctions as histone acetyltransferase and regulates transcription via chromatin remodeling. Acetylates all four core histones in nucleosomes. Histone acetylation gives an epigenetic tag for transcriptional activation. Mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. Mediates acetylation of histone H3 at 'Lys-122' (H3K122ac), a modification that localizes at the surface of the histone octamer and stimulates transcription, possibly by promoting nucleosome instability. Mediates acetylation of histone H3 at 'Lys-27' (H3K27ac). Also functions as acetyltransferase for nonhistone targets. Acetylates 'Lys-131' of ALX1 and acts as its coactivator. Acetylates SIRT2 and is proposed to indirectly increase the transcriptional activity of TP53 through acetylation and subsequent attenuation of SIRT2 deacetylase function. Acetylates HDAC1 leading to its inactivation and modulation of transcription. Acts as a TFAP2A-mediated transcriptional coactivator in presence of CITED2. Plays a role as a coactivator of NEUROD1-dependent transcription of the secretin and p21 genes and controls terminal differentiation of cells in the intestinal epithelium. Promotes cardiac myocyte enlargement. Can also mediate transcriptional repression. Binds to and may be involved in the transforming capacity of the adenovirus E1A protein. In case of HIV-1 infection, it is recruited by the viral protein Tat. Regulates Tat's transactivating activity and may help inducing chromatin remodeling of proviral genes. Acetylates FOXO1 and enhances its transcriptional activity. Acetylates BCL6 wich disrupts its ability to recruit histone deacetylases and hinders its transcriptional repressor activity. Participates in CLOCK or NPAS2-regulated rhythmic gene transcription; exhibits a circadian association with CLOCK or NPAS2, correlating with increase in PER1/2 mRNA and histone H3 acetylation on the PER1/2 promoter. Acetylates MTA1 at 'Lys-626' which is essential for its transcriptional coactivator activity (PubMed:10733570, PubMed:11430825, PubMed:11701890, PubMed:12402037, PubMed:12586840, PubMed:12929931, PubMed:14645221, PubMed:15186775, PubMed:15890677, PubMed:16617102, PubMed:16762839, PubMed:18722353, PubMed:18995842, PubMed:23415232, PubMed:23911289, PubMed:23934153, PubMed:8945521). Acetylates XBP1 isoform 2; acetylation increases protein stability of XBP1 isoform 2 and enhances its transcriptional activity (PubMed:20955178). Acetylates PCNA; acetylation promotes removal of chromatin-bound PCNA and its degradation during nucleotide excision repair (NER) (PubMed:24939902). Acetylates MEF2D.
Involvement in diseaseDefects in EP300 may play a role in epithelial cancer.
Chromosomal aberrations involving EP300 may be a cause of acute myeloid leukemias. Translocation t(8;22)(p11;q13) with KAT6A.
Rubinstein-Taybi syndrome 2
Sequence similaritiesContains 1 bromo domain.
Contains 1 CBP/p300-type HAT (histone acetyltransferase) domain.
Contains 1 KIX domain.
Contains 2 TAZ-type zinc fingers.
Contains 1 ZZ-type zinc finger.
DomainThe CRD1 domain (cell cycle regulatory domain 1) mediates transcriptional repression of a subset of p300 responsive genes; it can be de-repressed by CDKN1A/p21WAF1 at least at some promoters. It conatins sumoylation and acetylation sites and the same lysine residues may be targeted for the respective modifications. It is proposed that deacetylation by SIRT1 allows sumoylation leading to suppressed activity.
modificationsAcetylated on Lys at up to 17 positions by intermolecular autocatalysis. Deacetylated in the transcriptional repression domain (CRD1) by SIRT1, preferentially at Lys-1020. Deacetylated by SIRT2, preferentially at Lys-418, Lys-423, Lys-1542, Lys-1546, Lys-1549, Lys-1699, Lys-1704 and Lys-1707.
Citrullinated at Arg-2142 by PADI4, which impairs methylation by CARM1 and promotes interaction with NCOA2/GRIP1.
Methylated at Arg-580 and Arg-604 in the KIX domain by CARM1, which blocks association with CREB, inhibits CREB signaling and activates apoptotic response. Also methylated at Arg-2142 by CARM1, which impairs interaction with NCOA2/GRIP1.
Sumoylated; sumoylation in the transcriptional repression domain (CRD1) mediates transcriptional repression. Desumoylated by SENP3 through the removal of SUMO2 and SUMO3.
Probable target of ubiquitination by FBXO3, leading to rapid proteasome-dependent degradation.
Phosphorylated by HIPK2 in a RUNX1-dependent manner. This phosphorylation that activates EP300 happens when RUNX1 is associated with DNA and CBFB. Phosphorylated by ROCK2 and this enhances its activity. Phosphorylation at Ser-89 by AMPK reduces interaction with nuclear receptors, such as PPARG.
Cellular localizationCytoplasm. Nucleus. In the presence of ALX1 relocalizes from the cytoplasm to the nucleus. Colocalizes with ROCK2 in the nucleus.
- Information by UniProt
- E1A associated protein p300 antibody
- E1A binding protein p300 antibody
- E1A-associated protein p300 antibody
The recruitment of p300 to the genes that exhibited changes in H3K56ac was analyzed using ChIP analysis, with IL-8 as a positive control and Mef2c, GATA4, and Nkx2.5 as negative controls.
ChIP was performed on HeLa chromatin from 4 million cells using 8ug of ab14984. Positive control locus IRS2 shows enrichment over the negative control MyoD as expected.
This data was provided by an anonymous collaborator.
CBX7 promotes p300-PTEN promoter binding and Histone H3 acetylation in pancreatic cancer cells. CTRL, CBX7, and CBX7i Panc-1 cells were subjected to CHIP assay to determine the enrichment of p300 and acetylated Histone H3 on PTEN promoter. (*,# P<0.05, compared with the control group.)
ChIP assay was performed using a ChIP qPCR Assay Kit. The bound PTEN promoter sequence was verified using RT-PCR (Real-Time polymerase chain reaction) assay with DNA fragments immunoprecipitated by anti-p300 antibodies (ab14984), anti-acetyl-histone H3, or control rabbit IgG. The DNA fragments were amplified by quantitative RT-PCR. The RT-PCR primers are 5′-CGG GCG GTG ATG TGG C-3′ and 5′-GCC TCA CAG CGG CTC AAC TCT-3′.
All lanes : Anti-KAT3B / p300 antibody [3G230 / NM-11] - ChIP Grade (ab14984) at 5 µg/ml
Lane 1 : HeLa (Human epithelial carcinoma cell line) Nuclear Lysate
Lane 2 :
Jurkat nuclear extract lysate (ab14844)
Lysates/proteins at 20 µg per lane.
All lanes : Goat polyclonal Secondary Antibody to Mouse IgG - H&L (HRP), pre-adsorbed at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 300 kDa
Observed band size: 300 kDa
Additional bands at: 75 kDa. We are unsure as to the identity of these extra bands.
Exposure time: 20 minutes
This blot was produced using a 3-8% Tris Acetate gel under the TA buffer system. The gel was run at 150V for 60 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 3% Milk before being incubated with ab14984 overnight at 4°C. Antibody binding was detected using an anti-mouse secondary antibody conjugated to HRP, and visualised using ECL development solution.
This product has been referenced in:
- Tang W et al. The p300/YY1/miR-500a-5p/HDAC2 signalling axis regulates cell proliferation in human colorectal cancer. Nat Commun 10:663 (2019). Read more (PubMed: 30737378) »
- Chaytor L et al. The Pioneering Role of GATA2 in Androgen Receptor Variant Regulation Is Controlled by Bromodomain and Extraterminal Proteins in Castrate-Resistant Prostate Cancer. Mol Cancer Res 17:1264-1278 (2019). Read more (PubMed: 30833300) »