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GENE AND PROTEIN SUMMARY

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Gene name

EPCAM

Description

epithelial cell adhesion molecule

Protein class

Candidate cancer biomarkers, CD markers, Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

This gene encodes a carcinoma-associated antigen and is a member of a family that includes at least two type I membrane proteins. This antigen is expressed on most normal epithelial cells and gastrointestinal carcinomas and functions as a homotypic calcium-independent cell adhesion molecule. The antigen is being used as a target for immunotherapy treatment of human carcinomas. Mutations in this gene result in congenital tufting enteropathy. [provided by RefSeq, Dec 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

4 in total
3 with predicted TM region
2 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nuclear membrane

Additional location(s)

 

Staining summary

Localized to the nuclear membrane.

Reliability (APE)

Low

Antibodies in assay

CAB003809, HPA026761, CAB030012
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Selective expression in the cytoplasm and cell membranes of glandular cells.

Tissue specificity

Expressed in 23 out of 83 cell types

Reliability (APE)

High

Antibodies in assay

CAB003809, HPA026761, CAB030012
 

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 13
Placenta 2
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 15
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 60% of the cancers

Antibodies in assay

CAB003809, HPA026761, CAB030012
 

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

CAB003809

HPA026761

CAB030012

CAB003809

HPA026761

CAB030012

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB003809 mAb
HPA026761 pAb
CAB030012 mAb