Gene description for HPRT1
Gene name hypoxanthine phosphoribosyltransferase 1
Gene symbol HPRT1
Other names/aliases HGPRT
HPRT
Species Homo sapiens
 Database cross references - HPRT1
ExoCarta ExoCarta_3251
Entrez Gene 3251
HGNC 5157
MIM 308000
UniProt P00492  
 HPRT1 identified in exosomes derived from the following tissue/cell type
B cells 20458337    
B cells 20458337    
Nasopharyngeal carcinoma cells 25857718    
Nasopharyngeal carcinoma cells 25857718    
Nasopharyngeal carcinoma cells 25857718    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
 Gene ontology annotations for HPRT1
Molecular Function
    nucleotide binding GO:0000166 IEA
    hypoxanthine phosphoribosyltransferase activity GO:0004422 IDA
    magnesium ion binding GO:0000287 IDA
    guanine phosphoribosyltransferase activity GO:0052657 IDA
    protein homodimerization activity GO:0042803 IPI
    protein binding GO:0005515 IPI
Biological Process
    dendrite morphogenesis GO:0048813 IEA
    cytolysis GO:0019835 IEA
    IMP metabolic process GO:0046040 IDA
    purine ribonucleoside salvage GO:0006166 IMP
    GMP catabolic process GO:0046038 IDA
    hypoxanthine salvage GO:0043103 IDA
    purine-containing compound salvage GO:0043101 TAS
    purine nucleotide biosynthetic process GO:0006164 IMP
    striatum development GO:0021756 IEA
    small molecule metabolic process GO:0044281 TAS
    hypoxanthine metabolic process GO:0046100 IMP
    IMP salvage GO:0032264 IEA
    adenine salvage GO:0006168 IBA
    central nervous system neuron development GO:0021954 IEA
    cerebral cortex neuron differentiation GO:0021895 IEA
    positive regulation of dopamine metabolic process GO:0045964 IMP
    nucleobase-containing small molecule metabolic process GO:0055086 TAS
    dopamine metabolic process GO:0042417 IEA
    purine nucleobase metabolic process GO:0006144 TAS
    protein homotetramerization GO:0051289 IPI
    grooming behavior GO:0007625 IEA
    response to amphetamine GO:0001975 IEA
    guanine salvage GO:0006178 IDA
    GMP salvage GO:0032263 IBA
    lymphocyte proliferation GO:0046651 IEA
    locomotory behavior GO:0007626 IEA
Subcellular Localization
    cytosol GO:0005829 TAS
    cytoplasm GO:0005737 IDA
    extracellular exosome GO:0070062 IDA
 Experiment description of studies that identified HPRT1 in exosomes
1
Experiment ID 80
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
CD81|MHCII
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis -Sample 2
Authors Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W.
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
2
Experiment ID 81
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
CD81|MHCII
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis - Sample 3
Authors Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W.
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
3
Experiment ID 219
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63|CD9
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25857718    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from nasopharyngeal carcinoma cell identifies intercellular transfer of angiogenic proteins
Authors Chan YK, Zhang H, Liu P, Tsao GS, Li Lung M, Mak NK, Ngok-Shun Wong R, Ying-Kit Yue P
Journal name Int J Cancer
Publication year 2015
Sample Nasopharyngeal carcinoma cells
Sample name C666-1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.17-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
Experiment ID 220
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63|CD9
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25857718    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from nasopharyngeal carcinoma cell identifies intercellular transfer of angiogenic proteins
Authors Chan YK, Zhang H, Liu P, Tsao GS, Li Lung M, Mak NK, Ngok-Shun Wong R, Ying-Kit Yue P
Journal name Int J Cancer
Publication year 2015
Sample Nasopharyngeal carcinoma cells
Sample name NP69
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.17-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
5
Experiment ID 221
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63|CD9
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25857718    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from nasopharyngeal carcinoma cell identifies intercellular transfer of angiogenic proteins
Authors Chan YK, Zhang H, Liu P, Tsao GS, Li Lung M, Mak NK, Ngok-Shun Wong R, Ying-Kit Yue P
Journal name Int J Cancer
Publication year 2015
Sample Nasopharyngeal carcinoma cells
Sample name NP460
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.17-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
6
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
7
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
8
Experiment ID 231
ISEV standards
EV Biophysical techniques
Alix
EV Cytosolic markers
CD63|CD9
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Western blotting
Mass spectrometry
9
Experiment ID 232
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
10
Experiment ID 233
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 3
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for HPRT1
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 HPRT1 3251
Invitro Homo sapiens
Affinity Capture-MS Homo sapiens
Invitro Homo sapiens
Affinity Capture-MS Homo sapiens
2 FLJ10204  
Two-hybrid Homo sapiens
3 FANCA  
Two-hybrid Homo sapiens
4 HUS1  
Affinity Capture-MS Homo sapiens
5 MCC 4163
Affinity Capture-MS Homo sapiens
6 GC20  
Affinity Capture-MS Homo sapiens
7 PRTFDC1  
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which HPRT1 is involved
PathwayEvidenceSource
Purine salvage TAS Reactome





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