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Anti-P300 antibody produced in rabbit

affinity isolated antibody

E1A-associated protein p300, EP300, P300 transcription coactivator homolog

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies




buffered aqueous solution

mol wt

antigen 264 kDa

species reactivity

human, rat, mouse


~1 mg/mL


ELISA: 1:1000
western blot: 1:500-1:1000



NCBI accession no.

UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... EP300(2033)

General description

E1A binding protein p300 (p300) has a central bromodomain and three cysteine- and histidine-rich regions. The carboxy-terminal region interacts with the adenovirus oncoprotein E1A. The gene encoding this protein is localized on human chromosome 22q13. Anti-P300 Antibody detects endogenous levels of total P300 protein.


The antiserum was produced against synthesized peptide derived from human p300.

Immunogen Range: 55-104

Biochem/physiol Actions

E1A binding protein p300 (p300) and CBP (CREB binding protein) are highly related transcriptional coactivators. Both proteins have been identified through protein interaction assays. In addition to interacting with a variety of cellular factors and oncoproteins, loss of the wild type CBP alleles in isolated tumors suggests that CBP/p300 might serve as tumor suppressors. The ability of p300 to acetylate many transcription factors, including tumor suppressor p53, E2 factor (E2F), transcription factors II E and -F (TFIIE and -F) etc. demonstrates a novel mechanism of targeted p300 regulation of gene expression. Mutations in the gene encoding the protein have been linked to Rubinstein-Taybi syndrome (RSTS).

Features and Benefits

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Physical form

Rabbit IgG in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.


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.

Storage Class Code

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Expanding the phenotypic spectrum in EP300-related Rubinstein-Taybi syndrome.
Solomon BD
American Journal of Medical Genetics, 167A(5), 1111-1116 (2015)
Molecular cloning and functional analysis of the adenovirus E1A-associated 300-kD protein (p300) reveals a protein with properties of a transcriptional adaptor.
Eckner R
Genes & Development, 8(8), 869-884 (1994)
Zhi Chen et al.
Molecular therapy. Nucleic acids, 21, 1100-1110 (2020-09-01)
Monocytes and macrophages are the two major cell types involved in innate immunity. Exosomes act as signaling molecules to regulate cell-to-cell communication by releasing proteins, mRNAs, microRNAs (miRNAs), and long noncoding RNAs (lncRNAs). However, it is still unclear whether monocyte-derived...
Jihong Chen et al.
Scientific reports, 5, 13727-13727 (2015-09-12)
Skeletal myogenesis is a highly ordered process which specifically depends on the function of transcriptional coactivator p300. Previous studies have established that Akt/protein kinase B (PKB), a positive regulator of p300 in proliferating cells, is also important for proper skeletal...

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