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GENE AND PROTEIN SUMMARY

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Gene name

TJP1

Description

tight junction protein 1

Protein class

Mapped to UniProt SWISS-PROT, Potentially secreted proteins, SH3-domain containing proteins

Protein evidence

High

Entrez gene summary

This gene encodes a protein located on a cytoplasmic membrane surface of intercellular tight junctions. The encoded protein may be involved in signal transduction at cell-cell junctions. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cell Junctions

Additional location(s)

Cytoplasm, Golgi apparatus 

Staining summary

Mainly localized to the cell junctions. In addition localized to the cytoplasm.

Reliability (APE)

High

Antibodies in assay

HPA001636, HPA001637, CAB010822
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Expressed in cell membranes and cytoplasm of most cells.

Tissue specificity

Expressed in 66 out of 81 cell types

Reliability (APE)

High

Antibodies in assay

HPA001636, HPA001637, CAB010822
 

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 85% of the cancers

Antibodies in assay

HPA001636, HPA001637, CAB010822
 

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

HPA001636

HPA001637

CAB010822

HPA001636

HPA001637

CAB010822

A-431 Skin High
ModerateModerateStrong
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
ModerateWeakStrong
U-251 MG Brain High
ModerateWeakWeak

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA001636 pAb
HPA001637 pAb
CAB010822 msAb