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GENE AND PROTEIN SUMMARY

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Gene name

EGFR

Description

epidermal growth factor receptor

Protein class

Candidate cancer biomarkers, Enzymes, Kinases, Mapped to UniProt SWISS-PROT, Mutated genes in cancer, Plasma proteins, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a transmembrane glycoprotein that is a member of the protein kinase superfamily. This protein is a receptor for members of the epidermal growth factor family. EGFR is a cell surface protein that binds to epidermal growth factor. Binding of the protein to a ligand induces receptor dimerization and tyrosine autophosphorylation and leads to cell proliferation. Mutations in this gene are associated with lung cancer. Multiple alternatively spliced transcript variants that encode different protein isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

8 in total
3 with predicted TM region
6 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Plasma membrane

Additional location(s)

Cytoplasm 

Staining summary

Mainly localized to the plasma membrane. In addition localized to the cytoplasm.

Reliability (APE)

High

Antibodies in assay

CAB000035, HPA018530
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

"Cytoplasmic and membranous staining in selected tissues, predominantly in squamous and glandular epithelium.

Tissue specificity

Expressed in 36 out of 81 cell types

Reliability (APE)

Medium

Antibodies in assay

CAB000035, HPA001200, HPA018530
 

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 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 44% of the cancers

Antibodies in assay

CAB000035, HPA001200, HPA018530
 

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

CAB000035

HPA001200

HPA018530

CAB000035

HPA018530

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB000035 mAb
HPA001200 pAb
HPA018530 pAb