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GENE AND PROTEIN SUMMARY

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Gene name

CPE

Description

carboxypeptidase E

Protein class

Enzymes, Mapped to UniProt SWISS-PROT, Peptidases, Potentially secreted proteins

Protein evidence

High

Entrez gene summary

This gene encodes a carboxypeptidase that cleaves C-terminal amino acid residues and is involved in the biosynthesis of peptide hormones and neurotransmitters, including insulin. It is a peripheral membrane protein. The protein specifically binds regulated secretory pathway proteins, including prohormones, but not constitutively secreted proteins. Mutations in this gene are implicated in type II diabetes. [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
1 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Additional location(s)

 

Staining summary

No staining was observed in any of the three cell lines.

Reliability (Single)

Antibodies in assay

CAB024907
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Expression in subsets of cells including islets of Langerhans, enteroendocrine cells and prostate.

Tissue specificity

Expressed in 22 out of 80 cell types

Reliability (Single)

High

Antibodies in assay

CAB024907
 

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 12
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 13% of the cancers

Antibodies in assay

CAB024907
 

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

CAB024907

CAB024907

A-431 Skin Low
Negative
A-549 Lung Medium
CACO-2 Colon Not detected
HEK 293 Embryonal kidney High
HeLa Cervix Medium
Hep-G2 Liver High
MCF-7 Pleural effusion Medium
PC-3 Bone marrow Medium
RT-4 Urinary bladder Low
U-2 OS Bone High
Negative
U-251 MG Brain Low
Negative

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB024907 mAb