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GENE AND PROTEIN SUMMARY

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Gene name

PIEZO2

Description

piezo-type mechanosensitive ion channel component 2

Protein class

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

Protein evidence

Medium

Entrez gene summary

Piezos are large transmembrane proteins conserved among various species, all having between 24 and 36 predicted transmembrane domains. 'Piezo' comes from the Greek 'piesi,' meaning 'pressure.' The PIEZO2 protein has a role in rapidly adapting mechanically activated (MA) currents in somatosensory neurons (Coste et al., 2010 [PubMed 20813920]).[supplied by OMIM, Nov 2010]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

10 in total
9 with predicted TM region
4 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleus, Cytoplasm

Additional location(s)

Plasma membrane, Focal Adhesions 

Staining summary

Staining of nucleus and cytoplasm in all three cell lines with additional staining of plasma membrane in A-431 and focal adhesions in U-2 OS.

Reliability (Single)

Antibodies in assay

HPA031974
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic expression in most tissues along with membranous positivity in several tissues.

Tissue specificity

Expressed in 72 out of 82 cell types

Reliability (APE)

Low

Antibodies in assay

HPA015986, HPA031974, HPA040616
 

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 14
Endocrine tissues 3

Level of annotated protein expression





High
Medium
Low
None

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 75% of the cancers

Antibodies in assay

HPA015986, HPA031974, HPA040616
 

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

HPA015986

HPA040616

HPA031974

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA015986 pAb
HPA031974 pAb
HPA040616 pAb