Gene description for CTSC
Gene name cathepsin C
Gene symbol CTSC
Other names/aliases CPPI
DPP-I
DPP1
DPPI
HMS
JP
JPD
PALS
PDON1
PLS
Species Homo sapiens
 Database cross references - CTSC
ExoCarta ExoCarta_1075
Entrez Gene 1075
HGNC 2528
MIM 602365
UniProt P53634  
 CTSC identified in exosomes derived from the following tissue/cell type
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Saliva 19199708    
Urine 19056867    
 Gene ontology annotations for CTSC
Molecular Function
    cysteine-type endopeptidase activity GO:0004197 IBA
    protein binding GO:0005515 IPI
    identical protein binding GO:0042802 IEA
    chaperone binding GO:0051087 ISS
    cysteine-type endopeptidase activator activity involved in apoptotic process GO:0008656 IBA
    phosphatase binding GO:0019902 ISS
    serine-type endopeptidase activity GO:0004252 IEA
    chloride ion binding GO:0031404 IEA
    cysteine-type peptidase activity GO:0008234 IDA
    protein self-association GO:0043621 IEA
Biological Process
    proteolysis involved in cellular protein catabolic process GO:0051603 IBA
    response to organic substance GO:0010033 IEA
    activation of cysteine-type endopeptidase activity involved in apoptotic process GO:0006919 IBA
    positive regulation of apoptotic signaling pathway GO:2001235 IBA
    positive regulation of peptidase activity GO:0010952 IBA
    immune response GO:0006955 TAS
    positive regulation of proteolysis involved in cellular protein catabolic process GO:1903052 ISS
    T cell mediated cytotoxicity GO:0001913 IEA
    aging GO:0007568 IEA
    proteolysis GO:0006508 IDA
Subcellular Localization
    extracellular exosome GO:0070062 IDA
    Golgi apparatus GO:0005794 IEA
    lysosome GO:0005764 TAS
    membrane GO:0016020 IDA
    endoplasmic reticulum GO:0005783 IEA
    extracellular space GO:0005615 IDA
 Experiment description of studies that identified CTSC in exosomes
1
Experiment ID 211
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
EpCAM|TFRC
EV Membrane markers
cytochrome c|GOLGA2
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name IGROV1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 212
ISEV standards
CEM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
EpCAM|TFRC
EV Membrane markers
Cytochrome C|GOLGA2
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name OVCAR-3
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 66
ISEV standards
IEM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
CD63|CD81
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19199708    
Organism Homo sapiens
Experiment description Proteomic analysis of human parotid gland exosomes by multidimensional protein identification technology (MudPIT).
Authors Gonzalez-Begne M, Lu B, Han X, Hagen FK, Hand AR, Melvin JE, Yates JR
Journal name JPR
Publication year 2009
Sample Saliva
Sample name Saliva
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
Immunoelectron Microscopy
4
Experiment ID 63
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
AQP2
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
 Protein-protein interactions for CTSC
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which CTSC is involved
PathwayEvidenceSource
MHC class II antigen presentation TAS Reactome





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