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GENE AND PROTEIN SUMMARY

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Gene name

HTRA2

Description

HtrA serine peptidase 2

Protein class

Enzymes, Mapped to UniProt SWISS-PROT, Peptidases, Potential transmembrane proteins

Protein evidence

Medium

Entrez gene summary

This gene encodes a serine protease. The protein has been localized in the endoplasmic reticulum and interacts with an alternatively spliced form of mitogen-activated protein kinase 14. The protein has also been localized to the mitochondria with release to the cytosol following apoptotic stimulus. The protein is thought to induce apoptosis by binding the apoptosis inhibitory protein baculoviral IAP repeat-containing 4. Nuclear localization of this protein has also been observed. Alternate splicing of this gene results in two transcript variants encoding different isoforms. Additional transcript variants have been described, but their full-length sequences have not been determined. [provided by RefSeq, Jul 2008]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Nucleoli, Nucleus but not nucleoli, Cytoskeleton (Intermediate filaments)

Additional location(s)

 

Staining summary

Localized to the nucleus or to the nucleoli and intermediate filament.

Reliability (APE)

Very low

Antibodies in assay

CAB004004, HPA027366
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Cytoplasmic expression in several tissues.

Tissue specificity

Expressed in 51 out of 81 cell types

Reliability (APE)

Very low

Antibodies in assay

CAB004004, HPA027366
 

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 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 66% of the cancers

Antibodies in assay

CAB004004, HPA027366
 

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

CAB004004

HPA027366

CAB004004

HPA027366

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB004004 mAb
HPA027366 pAb