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GENE AND PROTEIN SUMMARY

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Gene name

CTSH

Description

cathepsin H

Protein class

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

Protein evidence

High

Entrez gene summary

The protein encoded by this gene is a lysosomal cysteine proteinase important in the overall degradation of lysosomal proteins. It is composed of a dimer of disulfide-linked heavy and light chains, both produced from a single protein precursor. The encoded protein, which belongs to the peptidase C1 protein family, can act both as an aminopeptidase and as an endopeptidase. Increased expression of this gene has been correlated with malignant progression of prostate tumors. [provided by RefSeq, Mar 2010]

External links

Ensembl, UniProt, Entrez gene, neXtProt, Antibodypedia

No of splice variants

5 in total
0 with predicted TM region
4 with predicted signal peptide

SUBCELLULAR LOCATION SUMMARY

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Main location(s)

Cytoplasm

Additional location(s)

Nucleus but not nucleoli, Vesicles 

Staining summary

Localized to cytoplasm, nucleus and vesicles.

Reliability (APE)

Very low

Antibodies in assay

CAB000458, HPA003524
 

NORMAL TISSUE & ORGAN SUMMARY

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Expression summary

Granular cytoplasmic expression in most tissues.

Tissue specificity

Expressed in 38 out of 81 cell types

Reliability (APE)

High

Antibodies in assay

CAB000458, HPA003524
 

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 64% of the cancers

Antibodies in assay

CAB000458, HPA003524
 

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

CAB000458

HPA003524

CAB000458

HPA003524

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

ANTIBODY SUMMARY

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Antibody

Clonality

Validation

CAB000458 mAb
HPA003524 pAb