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GENE AND PROTEIN SUMMARY

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Gene name

EP300

Description

E1A binding protein p300

Protein class

Enzymes, Mapped to UniProt SWISS-PROT, Mutated genes in cancer, Transcription factors

Protein evidence

High

Entrez gene summary

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]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

1 in total
0 with predicted TM region
0 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus but not nucleoli

Additional location(s)

Cytoplasm, Centrosome 

Staining summary

Mainly localized to the nucleus but excluded from the nucleoli.

Reliability (APE)

High

Antibodies in assay

CAB000146, HPA003128, HPA004112
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Ubiquitous nuclear expression at variable levels.

Tissue specificity

Expressed in 79 out of 80 cell types

Reliability (APE)

High

Antibodies in assay

CAB000146, HPA003128, HPA004112
 

Organ

No of cell types

Protein expression

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 13
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 81% of the cancers

Antibodies in assay

CAB000146, HPA003128, HPA004112
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Protein
expression of
normal tissue

Melanoma
 
Ovarian cancer
 
Pancreatic cancer
 
Prostate cancer
 
Renal cancer
 
Skin cancer
 
Stomach cancer
 
 
Testis cancer
 
Thyroid cancer
 
Urothelial cancer
 

Level of antibody staining





Strong
Moderate
Weak
Negative

CELL LINE SUMMARY

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RNA evidence

High
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

CAB000146

HPA003128

HPA004112

CAB000146

HPA003128

HPA004112

A-431 Skin Medium
NegativeStrongStrong
A-549 Lung Medium
CACO-2 Colon Medium
HEK 293 Embryonal kidney High
HeLa Cervix Medium
Hep-G2 Liver Medium
MCF-7 Pleural effusion Medium
PC-3 Bone marrow Medium
RT-4 Urinary bladder Medium
U-2 OS Bone Medium
WeakStrongStrong
U-251 MG Brain Medium
WeakModerateStrong

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB000146 mAb
HPA003128 pAb
HPA004112 pAb