Rabbit p300 Polyclonal Antibody | anti-p300 antibody

p300 (V6) Polyclonal Antibody

Cat. Num. AAA3001434

• Gene Names: EP300; p300; KAT3B; MKHK2; RSTS2
• Reactivity: Human, Mouse, Rat
• Applications: Immunohistochemistry
• Purity: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is >95% (by SDS-PAGE).
• Synonyms: p300; Polyclonal Antibody; p300 (V6) Polyclonal Antibody; Histone acetyltransferase p300; p300 HAT; E1A-associated protein p300; EP300; P300; anti-p300 antibody

• Host: Rabbit
• Reactivity: Human, Mouse, Rat
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: p300 (V6) polyclonal antibody detects endogenous levels of p300 protein.
• Purity/Purification: The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is >95% (by SDS-PAGE).
• Form/Format: Rabbit IgG, 1mg/ml in PBS with 0.02% sodium azide, 50% glycerol, pH7.2
• Sequence Length: 2414

• Applicable Applications for anti-p300 antibody: Immunohistochemistry (IHC)
• Application Notes: IHC: 1:50-1:200
• Immunogen: Synthetic peptide, corresponding to the N-terminus of Human p300.
• Preparation and Storage: Store at 4 degree C short term.; Aliquot and store at -20 degree C long term.; Avoid freeze-thaw cycles.

Testing Data

Immunohistochemistry (IHC)

(Immunohistochemistry (IHC) analyzes of p300 (V6) pAb in paraffin-embedded human breast carcinoma tissue at 1:100.)

Related Product Information for anti-p300 antibody

Cyclic AMP-regulated gene expression frequently involves a DNA element designated the cAMP-regulated enhancer (CRE). Many transcription factors, including the protein CREB, which is activated as a result of phosphorylation by protein kinase A, bind to this element. It has been shown that protein kinase A-mediated CREB phosphorylation results in its binding to a 265 kDa nuclear protein designated CBP (for CREB-binding protein). These findings suggest that CBP has many of the properties expected of a CREB co-activator. Another high molecular weight transcriptional adapter protein, designated p300, is characterized by three cysteine- and histidine-rich regions, of which the most carboxy terminal region specifically binds the adenovirus E1A protein. p300 molecules lacking an intact E1A binding site bypass E1A repression even in the presence of high concentrations of E1A. Sequence analysis of CBP and p300 has revealed substantial homology, arguing that these proteins are members of a conserved family of co-activators.

NCBI and Uniprot Product Information

• NCBI GI #: 50345997
• NCBI GeneID: 2033
• NCBI Accession #: NP_001420.2
• NCBI GenBank Nucleotide #: NP_001420.2
• UniProt Accession #: Q09472
• Molecular Weight: ~ 264kDa
• NCBI Official Full Name: histone acetyltransferase p300 isoform 1
• NCBI Official Synonym Full Names: E1A binding protein p300
• NCBI Official Symbol: EP300
• NCBI Official Synonym Symbols: p300; KAT3B; MKHK2; RSTS2
• NCBI Protein Information: histone acetyltransferase p300
• UniProt Protein Name: Histone acetyltransferase p300
• UniProt Gene Name: EP300
• UniProt Synonym Gene Names: P300; p300 HAT
• UniProt Entry Name: EP300_HUMAN

NCBI Description

This gene encodes the adenovirus E1A-associated cellular p300 transcriptional co-activator protein. It functions as histone acetyltransferase that regulates transcription via chromatin remodeling and is important in the processes of cell proliferation and differentiation. It mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. This gene has also been identified as a co-activator of HIF1A (hypoxia-inducible factor 1 alpha), and thus plays a role in the stimulation of hypoxia-induced genes such as VEGF. Defects in this gene are a cause of Rubinstein-Taybi syndrome and may also play a role in epithelial cancer. [provided by RefSeq, Jul 2008]

Uniprot Description

p300: a histone acetyltransferase and transcriptional co-activator that regulates transcription via chromatin remodeling. Acetylates all four core histones in nucleosomes. Related to CPB (CREB-binding protein), and like CPB can stimulate transcription through activation of CREB. Specifically inhibited by the adenovirus oncoprotein E1A. A co-activator of HIF1A (hypoxia-inducible factor 1 alpha), and thus plays a role in the stimulation of hypoxia-induced genes such as VEGF. Mediates cAMP-gene regulation by binding specifically to phosphorylated CREB protein. Methylated at R580 and R604 in the KIX domain by CARM1, which blocks association with CREB, inhibits CREB signaling and activates the apoptotic response. Also methylated at R2142 by CARM1, which impairs interaction with NCoA2.

Protein type: Nuclear receptor co-regulator; EC 2.3.1.48; Acetyltransferase; Motility/polarity/chemotaxis; Transcription, coactivator/corepressor

Chromosomal Location of Human Ortholog: 22q13.2

Cellular Component: nucleoplasm; transcription factor complex; cytoplasm; nucleus; histone acetyltransferase complex

Molecular Function: lysine N-acetyltransferase activity; transcription activator binding; zinc ion binding; p53 binding; chromatin DNA binding; transcription coactivator activity; beta-catenin binding; transcription factor binding; protein binding; histone acetyltransferase activity; DNA binding; androgen receptor binding; acetyltransferase activity; transferase activity, transferring acyl groups; chromatin binding; nuclear hormone receptor binding

Biological Process: circadian rhythm; establishment and/or maintenance of chromatin architecture; positive regulation of protein binding; viral reproduction; regulation of cell cycle; apoptosis; heart development; positive regulation of transcription of target genes involved in unfolded protein response; negative regulation of transcription from RNA polymerase II promoter; regulation of transcription, DNA-dependent; positive regulation of interferon type I production; G2/M transition of mitotic cell cycle; DNA damage response, signal transduction by p53 class mediator resulting in induction of apoptosis; nervous system development; Notch signaling pathway; skeletal muscle development; somitogenesis; internal peptidyl-lysine acetylation; transcription, DNA-dependent; protein stabilization; organ morphogenesis; protein amino acid acetylation; response to estrogen stimulus; response to hypoxia; innate immune response; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; mitotic cell cycle; internal protein amino acid acetylation; lung development; N-terminal peptidyl-lysine acetylation

Disease: Rubinstein-taybi Syndrome 2; Rubinstein-taybi Syndrome 1; Colorectal Cancer