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GENE AND PROTEIN SUMMARY

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Gene name

PCDHA3

Description

protocadherin alpha 3

Protein class

Mapped to UniProt SWISS-PROT, Potential transmembrane proteins, Potentially secreted proteins

Protein evidence

Medium

Entrez gene summary

This gene is a member of the protocadherin alpha gene cluster, one of three related gene clusters tandemly linked on chromosome five that demonstrate an unusual genomic organization similar to that of B-cell and T-cell receptor gene clusters. The alpha gene cluster is composed of 15 cadherin superfamily genes related to the mouse CNR genes and consists of 13 highly similar and 2 more distantly related coding sequences. The tandem array of 15 N-terminal exons, or variable exons, are followed by downstream C-terminal exons, or constant exons, which are shared by all genes in the cluster. The large, uninterrupted N-terminal exons each encode six cadherin ectodomains while the C-terminal exons encode the cytoplasmic domain. These neural cadherin-like cell adhesion proteins are integral plasma membrane proteins that most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been observed and additional variants have been suggested but their full-length nature has yet to be determined. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus but not nucleoli, Golgi apparatus

Additional location(s)

 

Staining summary

Staining of the nucleus and Golgi apparatus in all three cell lines.

Reliability (Single)

Antibodies in assay

HPA035667
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Ubiquitous membranous and cytoplasmic expression. Caution: Based on antibodies targeting proteins from multiple genes.

Tissue specificity

Expressed in 80 out of 80 cell types

Reliability (APE)

Very low

Antibodies in assay

HPA008712, HPA035667
 

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 97% of the cancers

Antibodies in assay

HPA008712, HPA035667
 

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

Low
 

Cell line

Cell origin

RNA abundance

IH staining

IF intensity

HPA008712

HPA035667

A-431 Skin Not detected
Strong
A-549 Lung Low
CACO-2 Colon Not detected

-

HEK 293 Embryonal kidney Low
HeLa Cervix Not detected
Hep-G2 Liver Not detected
MCF-7 Pleural effusion Not detected
PC-3 Bone marrow Low
RT-4 Urinary bladder Not detected
U-2 OS Bone Low
Strong
U-251 MG Brain Not detected
Weak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

Also mapped to

HPA008712 pAb
PCDHA1 (100%), PCDHA10 (100%), PCDHA11 (100%), PCDHA12 (100%), PCDHA13 (100%), PCDHA2 (100%), PCDHA4 (100%), PCDHA5 (100%), PCDHA6 (100%), PCDHA7 (100%), PCDHA8 (100%), PCDHA9 (100%), PCDHAC1 (100%), PCDHAC2 (100%)
HPA035667 pAb