Gene description for PRSS8
Gene name protease, serine, 8
Gene symbol PRSS8
Other names/aliases CAP1
PROSTASIN
Species Homo sapiens
 Database cross references - PRSS8
ExoCarta ExoCarta_5652
Vesiclepedia VP_5652
Entrez Gene 5652
HGNC 9491
MIM 600823
UniProt Q16651  
 PRSS8 identified in exosomes derived from the following tissue/cell type
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Colorectal cancer cells 34887515    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Saliva 19199708    
Urine 19056867    
Urine 21595033    
Urine 21595033    
Urine 21595033    
Urine 22418980    
Urine 22418980    
 Gene ontology annotations for PRSS8
Molecular Function
    serine-type endopeptidase activity GO:0004252 IEA
    protein binding GO:0005515 IPI
    serine-type peptidase activity GO:0008236 TAS
Biological Process
    proteolysis GO:0006508 IEA
    positive regulation of sodium ion transport GO:0010765 IBA
Subcellular Localization
    extracellular region GO:0005576 TAS
    extracellular space GO:0005615 HDA
    plasma membrane GO:0005886 IDA
    plasma membrane GO:0005886 TAS
    extracellular exosome GO:0070062 HDA
 Experiment description of studies that identified PRSS8 in exosomes
1
Experiment ID 207
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP70|FLOT1
Enriched markers
✔
VDAC
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors "Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ."
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name DKO-1
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 208
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP70|FLOT1
Enriched markers
✔
VDAC
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors "Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ."
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name Dks-8
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 209
MISEV standards
✘ Biophysical techniques
✔
TSG101|HSP70|FLOT1
Enriched markers
✔
VDAC
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors "Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ."
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name DLD-1
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
Experiment ID 285
MISEV standards
✔
CEM
Biophysical techniques
✔
Alix|TSG101|CD63|CD81|EpCAM
Enriched markers
✘ Negative markers
✔
DLS
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors "Xu R, Greening DW, Rai A, Ji H, Simpson RJ."
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Sequential centrifugal ultrafiltration - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Sequential centrifugal ultrafiltration
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
5
Experiment ID 286
MISEV standards
✔
CEM
Biophysical techniques
✔
Alix|TSG101|CD63|CD81|EpCAM
Enriched markers
✘ Negative markers
✔
DLS
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors "Xu R, Greening DW, Rai A, Ji H, Simpson RJ."
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Sequential centrifugal ultrafiltration - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Sequential centrifugal ultrafiltration
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
6
Experiment ID 1203
MISEV standards
✔
EM
Biophysical techniques
✔
SDCBP|FLOT1|CD9|CD81|CD63|EPCAM|GAPDH|LAMP1|TFRC|CD151|CD82|LAMP2|RAB35|TSG101|FLOT2|RAB5B|ICAM1|RAB5A
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 34887515    
Organism Homo sapiens
Experiment description Supermeres are functional extracellular nanoparticles replete with disease biomarkers and therapeutic targets
Authors "Zhang Q, Jeppesen DK, Higginbotham JN, Graves-Deal R, Trinh VQ, Ramirez MA, Sohn Y, Neininger AC, Taneja N, McKinley ET, Niitsu H, Cao Z, Evans R, Glass SE, Ray KC, Fissell WH, Hill S, Rose KL, Huh WJ, Washington MK, Ayers GD, Burnette DT, Sharma S, Rome LH, Franklin JL, Lee YA, Liu Q, Coffey RJ."
Journal name Nat Cell Biol
Publication year 2021
Sample Colorectal cancer cells
Sample name DiFi
Isolation/purification methods Differential centrifugation
Filtration
Centrifugal ultrafiltration
Ultracentrifugation
OptiPrep density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
miRNA
Methods used in the study Western blotting
Mass spectrometry
RNA sequencing
7
Experiment ID 211
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|Alix|EpCAM|TFRC
Enriched markers
✔
cytochrome c|GOLGA2
Negative markers
✘ 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
8
Experiment ID 212
MISEV standards
✔
CEM
Biophysical techniques
✔
TSG101|Alix|EpCAM|TFRC
Enriched markers
✔
Cytochrome C|GOLGA2
Negative markers
✘ 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
9
Experiment ID 66
MISEV standards
✔
IEM
Biophysical techniques
✔
TSG101|Alix|CD63|CD81
Enriched markers
✘ Negative markers
✘ 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
10
Experiment ID 63
MISEV standards
✘ Biophysical techniques
✔
AQP2
Enriched markers
✘ Negative markers
✘ 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
11
Experiment ID 193
MISEV standards
✔
EM
Biophysical techniques
✔
CD63|CD9
Enriched markers
✔
PHB
Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21595033    
Organism Homo sapiens
Experiment description Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
Authors "Moon PG, Lee JE, You S, Kim TK, Cho JH, Kim IS, Kwon TH, Kim CD, Park SH, Hwang D, Kim YL, Baek MC."
Journal name Proteomics
Publication year 2011
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
12
Experiment ID 194
MISEV standards
✘ Biophysical techniques
✘ Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21595033    
Organism Homo sapiens
Experiment description Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
Authors "Moon PG, Lee JE, You S, Kim TK, Cho JH, Kim IS, Kwon TH, Kim CD, Park SH, Hwang D, Kim YL, Baek MC."
Journal name Proteomics
Publication year 2011
Sample Urine
Sample name Urine - Patients of basement membrane nephropathy
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
13
Experiment ID 195
MISEV standards
✘ Biophysical techniques
✘ Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21595033    
Organism Homo sapiens
Experiment description Proteomic analysis of urinary exosomes from patients of early IgA nephropathy and thin basement membrane nephropathy.
Authors "Moon PG, Lee JE, You S, Kim TK, Cho JH, Kim IS, Kwon TH, Kim CD, Park SH, Hwang D, Kim YL, Baek MC."
Journal name Proteomics
Publication year 2011
Sample Urine
Sample name Urine - Patients of early IgA nephropathy
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
14
Experiment ID 196
MISEV standards
✔
EM
Biophysical techniques
✔
Alix|TSG101|HSP70|CD9
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal high density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
15
Experiment ID 197
MISEV standards
✔
EM
Biophysical techniques
✔
Alix|TSG101|HSP70|CD9
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal low density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for PRSS8
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 BRINP2  
Affinity Capture-MS Homo sapiens
2 LYZL2  
Affinity Capture-MS Homo sapiens
3 UPK2 7379
Affinity Capture-MS Homo sapiens
4 ANLN 54443
Affinity Capture-MS Homo sapiens
5 RAMP3  
Affinity Capture-MS Homo sapiens
6 PRTN3 5657
Affinity Capture-MS Homo sapiens
7 KLHL15  
Affinity Capture-MS Homo sapiens
8 KLK15  
Affinity Capture-MS Homo sapiens
9 SLC25A6 293
Affinity Capture-MS Homo sapiens
10 FURIN 5045
Affinity Capture-MS Homo sapiens
11 LAMP3  
Affinity Capture-MS Homo sapiens
12 MICA 100507436
Affinity Capture-MS Homo sapiens
13 KLK5 25818
Affinity Capture-MS Homo sapiens
14 SGCA  
Affinity Capture-MS Homo sapiens
15 EFNA2  
Affinity Capture-MS Homo sapiens
16 CFC1  
Affinity Capture-MS Homo sapiens
17 PIGU 128869
Affinity Capture-MS Homo sapiens
18 B3GALT4  
Affinity Capture-MS Homo sapiens
19 KLRG2 346689
Affinity Capture-MS Homo sapiens
20 GPAA1 8733
Affinity Capture-MS Homo sapiens
21 AGK 55750
Affinity Capture-MS Homo sapiens
22 TUBB4A 10382
Affinity Capture-MS Homo sapiens
23 FNDC5  
Affinity Capture-MS Homo sapiens
24 IL27RA 9466
Affinity Capture-MS Homo sapiens
25 SFTPC  
Affinity Capture-MS Homo sapiens
26 VSIG4  
Affinity Capture-MS Homo sapiens
27 GZMH  
Affinity Capture-MS Homo sapiens
28 RPS27 6232
Affinity Capture-MS Homo sapiens
29 HYAL1 3373
Affinity Capture-MS Homo sapiens
30 ERF  
Affinity Capture-MS Homo sapiens
31 TUBA1B 10376
Affinity Capture-MS Homo sapiens
32 NDUFB3 4709
Affinity Capture-MS Homo sapiens
33 CTAG1B  
Affinity Capture-MS Homo sapiens
34 GDF11 10220
Affinity Capture-MS Homo sapiens
35 TREML1 340205
Affinity Capture-MS Homo sapiens
36 RBM14-RBM4 100526737
Affinity Capture-MS Homo sapiens
37 GPR182  
Affinity Capture-MS Homo sapiens
38 CLEC2B  
Affinity Capture-MS Homo sapiens
39 ALDH3B1 221
Affinity Capture-MS Homo sapiens
40 SSUH2  
Affinity Capture-MS Homo sapiens
41 HYAL2 8692
Affinity Capture-MS Homo sapiens
42 TCTEX1D4  
Affinity Capture-MS Homo sapiens
43 GTF2H4 2968
Affinity Capture-MS Homo sapiens
44 EDN3  
Affinity Capture-MS Homo sapiens
45 QTRT1 81890
Affinity Capture-MS Homo sapiens
46 MAD2L1 4085
Affinity Capture-MS Homo sapiens
47 IARS 3376
Affinity Capture-MS Homo sapiens
48 SPINT2 10653
Affinity Capture-MS Homo sapiens
49 DCP2  
Affinity Capture-MS Homo sapiens
50 SLC25A30 253512
Affinity Capture-MS Homo sapiens
51 LEAP2  
Affinity Capture-MS Homo sapiens
View the network image/svg+xml
 Pathways in which PRSS8 is involved
PathwayEvidenceSource
Developmental Biology TAS Reactome
Formation of the cornified envelope TAS Reactome
Keratinization TAS Reactome





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