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GENE AND PROTEIN SUMMARY

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Gene name

CAPN6

Description

calpain 6

Protein class

Candidate cancer biomarkers, Mapped to UniProt SWISS-PROT, Peptidases, Potential transmembrane proteins

Protein evidence

High

Entrez gene summary

Calpains are ubiquitous, well-conserved family of calcium-dependent, cysteine proteases. The calpain proteins are heterodimers consisting of an invariant small subunit and variable large subunits. The large subunit possesses a cysteine protease domain, and both subunits possess calcium-binding domains. Calpains have been implicated in neurodegenerative processes, as their activation can be triggered by calcium influx and oxidative stress. The protein encoded by this gene is highly expressed in the placenta. Its C-terminal region lacks any homology to the calmodulin-like domain of other calpains. The protein lacks critical active site residues and thus is suggested to be proteolytically inactive. The protein may play a role in tumor formation by inhibiting apoptosis and promoting angiogenesis. [provided by RefSeq, Nov 2009]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

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

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoplasm

Additional location(s)

 

Staining summary

Staining of the cytoplasm in U-2 OS cells.

Reliability (Single)

Antibodies in assay

HPA040383
 

NORMAL TISSUE & ORGAN SUMMARY

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Staining summary

Normal tissues showed moderate to strong nucleolar staining. Bile ducts, islet cells, renal glomeruli, breast, myocytes, glial cells and the lymphoid tissues were weakly stained or negative.

Tissue specificity

Staining in 61 out of 77 cell types

Reliability (Single)

Antibodies in assay

HPA040383
 

Organ

No of cell types

Antibody staining

CNS (brain) 11
Hematopoietic (blood) 8
Liver and pancreas 5
Digestive (GI-tract) 13
Respiratory (lung) 4
Cardiovascular 1
Female tissues 12
Placenta 1
Male tissues 5
Urinary tract (kidney) 3
Skin and soft tissues 11
Endocrine tissues 3

Level of antibody staining





Strong
Moderate
Weak
Negative

CANCER TISSUE SUMMARY

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Staining summary

Antibody staining in 84% of the cancers

Antibodies in assay

HPA040383
 

Tissue

Cancer staining

Normal tissue
staining

Breast cancer
 
Carcinoid
 
Cervical cancer
 
 
Colorectal cancer
 
 
Endometrial cancer
 
 
Glioma
 
Head and neck cancer
 
 
Liver cancer
 
 
Lung cancer
 
 
Lymphoma
 
 
 

Tissue

Cancer staining

Normal tissue
staining

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

 

HPA040383

A-431 Skin Not detected

-

Negative
A-549 Lung Not detected

-

CACO-2 Colon Low

-

HEK 293 Embryonal kidney Not detected

-

HeLa Cervix Not detected

-

Hep-G2 Liver Not detected

-

MCF-7 Pleural effusion Not detected

-

PC-3 Bone marrow Not detected

-

RT-4 Urinary bladder Not detected

-

U-2 OS Bone Low

-

Weak
U-251 MG Brain Not detected

-

Negative

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

HPA040383 pAb