Gene description for PRPF19
Gene name pre-mRNA processing factor 19
Gene symbol PRPF19
Other names/aliases NMP200
PRP19
PSO4
SNEV
UBOX4
hPSO4
Species Homo sapiens
 Database cross references - PRPF19
ExoCarta ExoCarta_27339
Entrez Gene 27339
HGNC 17896
MIM 608330
UniProt Q9UMS4  
 PRPF19 identified in exosomes derived from the following tissue/cell type
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Squamous carcinoma cells 20124223    
Thymus 23844026    
 Gene ontology annotations for PRPF19
Molecular Function
    ubiquitin protein ligase activity GO:0061630 IMP
    ligase activity GO:0016874 IEA
    identical protein binding GO:0042802 IPI
    protein binding GO:0005515 IPI
    ubiquitin-ubiquitin ligase activity GO:0034450 IDA
Biological Process
    cellular protein localization GO:0034613 IMP
    RNA splicing GO:0008380 TAS
    spliceosomal complex assembly GO:0000245 IMP
    signal transduction involved in DNA damage checkpoint GO:0072422 IMP
    proteasomal protein catabolic process GO:0010498 IMP
    protein K63-linked ubiquitination GO:0070534 IMP
    lipid biosynthetic process GO:0008610 IEA
    generation of catalytic spliceosome for first transesterification step GO:0000349 IBA
    gene expression GO:0010467 TAS
    negative regulation of neuron differentiation GO:0045665 IEA
    positive regulation of astrocyte differentiation GO:0048711 IEA
    positive regulation of mRNA splicing, via spliceosome GO:0048026 IEA
    mRNA splicing, via spliceosome GO:0000398 TAS
    spliceosomal tri-snRNP complex assembly GO:0000244 IDA
    inner cell mass cell proliferation GO:0001833 IEA
    protein polyubiquitination GO:0000209 IDA
    double-strand break repair via nonhomologous end joining GO:0006303 IMP
Subcellular Localization
    site of double-strand break GO:0035861 IDA
    catalytic step 2 spliceosome GO:0071013 IDA
    cytoplasm GO:0005737 IDA
    spindle GO:0005819 IEA
    nucleus GO:0005634 IDA
    nucleoplasm GO:0005654 TAS
    membrane GO:0016020 IDA
    Prp19 complex GO:0000974 IDA
    nuclear speck GO:0016607 IDA
    DNA replication factor A complex GO:0005662 IDA
    lipid particle GO:0005811 IEA
    U2-type catalytic step 1 spliceosome GO:0071006 IBA
 Experiment description of studies that identified PRPF19 in exosomes
1
Experiment ID 207
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|HSP70
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✔
VDAC
EV Negative markers
✔
NTA
EV 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
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|HSP70
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✔
VDAC
EV Negative markers
✔
NTA
EV 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
ISEV standards
✘ EV Biophysical techniques
✔
TSG101|HSP70
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✔
VDAC
EV Negative markers
✔
NTA
EV 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 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
5
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
6
Experiment ID 191
ISEV standards
✘ EV Biophysical techniques
✔
Alix
EV Cytosolic markers
✔
CD81|CD9
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20124223    
Organism Homo sapiens
Experiment description Hypoxic tumor cell modulates its microenvironment to enhance angiogenic and metastatic potential by secretion of proteins and exosomes.
Authors Park JE, Tan HS, Datta A, Lai RC, Zhang H, Meng W, Lim SK, Sze SK.
Journal name Mol Cell Proteomics
Publication year 2010
Sample Squamous carcinoma cells
Sample name Squamous carcinoma cell (A431)
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
7
Experiment ID 217
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
CD81|CD9|CD63
EV Membrane markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23844026    
Organism Homo sapiens
Experiment description Characterization of human thymic exosomes.
Authors Skogberg G, Gudmundsdottir J, van der Post S, Sandstrom K, Bruhn S, Benson M, Mincheva-Nilsson L, Baranov V, Telemo E, Ekwall O.
Journal name PLoS One
Publication year 2013
Sample Thymus
Sample name Normal-Thymus
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for PRPF19
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 EXOC7 23265
Two-hybrid Homo sapiens
2 DNTT 1791
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
3 PLRG1 5356
Affinity Capture-MS Homo sapiens
View the network image/svg+xml
 Pathways in which PRPF19 is involved
PathwayEvidenceSource
mRNA Splicing - Major Pathway TAS Reactome





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