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GENE AND PROTEIN SUMMARY

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Gene name

E2F4

Description

E2F transcription factor 4, p107/p130-binding

Protein class

Mapped to UniProt SWISS-PROT, Transcription factors

Protein evidence

Medium

Entrez gene summary

The protein encoded by this gene is a member of the E2F family of transcription factors. The E2F family plays a crucial role in the control of cell cycle and action of tumor suppressor proteins and is also a target of the transforming proteins of small DNA tumor viruses. The E2F proteins contain several evolutionally conserved domains found in most members of the family. These domains include a DNA binding domain, a dimerization domain which determines interaction with the differentiation regulated transcription factor proteins (DP), a transactivation domain enriched in acidic amino acids, and a tumor suppressor protein association domain which is embedded within the transactivation domain. This protein binds to all three of the tumor suppressor proteins pRB, p107 and p130, but with higher affinity to the last two. It plays an important role in the suppression of proliferation-associated genes, and its gene mutation and increased expression may be associated with human cancer. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Pending subcellular analysis

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

The majority of normal tissues displayed moderate to strong cytoplasmic and membranous immunoreactivity. Squamous epithelia, testicular cells, myocytes, CNS and lymphoid tissues were negative.

Tissue specificity

Staining in 37 out of 79 cell types

Reliability (Single)

Antibodies in assay

CAB016523
 

Organ

No of cell types

Antibody staining

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

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 58% of the cancers

Antibodies in assay

CAB016523
 

Tissue

Cancer staining

Normal tissue
staining

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

Tissue

Cancer staining

Normal tissue
staining

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

A-431 Skin High

-

-

A-549 Lung High

-

-

CACO-2 Colon High

-

-

HEK 293 Embryonal kidney High

-

-

HeLa Cervix High

-

-

Hep-G2 Liver High

-

-

MCF-7 Pleural effusion High

-

-

PC-3 Bone marrow High

-

-

RT-4 Urinary bladder High

-

-

U-2 OS Bone High

-

-

U-251 MG Brain High

-

-

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB016523 mAb