Gene description for Copb2
Gene name coatomer protein complex, subunit beta 2 (beta prime)
Gene symbol Copb2
Other names/aliases -
Species Rattus norvegicus
 Database cross references - Copb2
ExoCarta ExoCarta_60384
Vesiclepedia VP_60384
Entrez Gene 60384
UniProt O35142  
 Copb2 identified in sEVs derived from the following tissue/cell type
Hepatocytes 19367702    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
 Gene ontology annotations for Copb2
Molecular Function
    protein kinase C binding GO:0005080 IPI
    structural molecule activity GO:0005198 IEA
    protein binding GO:0005515 IPI
Biological Process
    intracellular protein transport GO:0006886 IBA
    intracellular protein transport GO:0006886 IEA
    endoplasmic reticulum to Golgi vesicle-mediated transport GO:0006888 IBA
    retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum GO:0006890 IBA
    retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum GO:0006890 IEA
    retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum GO:0006890 ISO
    retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum GO:0006890 ISS
    intra-Golgi vesicle-mediated transport GO:0006891 IBA
    intra-Golgi vesicle-mediated transport GO:0006891 IEA
    intra-Golgi vesicle-mediated transport GO:0006891 ISO
    vesicle-mediated transport GO:0016192 IEA
Subcellular Localization
    Golgi membrane GO:0000139 IDA
    Golgi membrane GO:0000139 IEA
    Golgi apparatus GO:0005794 IDA
    Golgi apparatus GO:0005794 ISO
    cytosol GO:0005829 IEA
    membrane coat GO:0030117 IEA
    COPI vesicle coat GO:0030126 IBA
    COPI vesicle coat GO:0030126 IEA
    COPI vesicle coat GO:0030126 ISO
    COPI-coated vesicle membrane GO:0030663 IEA
 Experiment description of studies that identified Copb2 in sEVs
1
Experiment ID 35
MISEV standards
✔
CEM
Biophysical techniques
✔
TSG101|Alix|CD81|CD63
Enriched markers
✔
HSPA5
Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19367702    
Organism Rattus norvegicus
Experiment description Characterization and Comprehensive Proteome Profiling of Exosomes Secreted by Hepatocytes.
Authors "Conde-Vancells J, Rodriguez-Suarez E, Embade N, Gil D, Matthiesen R, Valle M, Elortza F, Lu SC, Mato JM, Falcon-Perez JM"
Journal name JPR
Publication year 2008
Sample Hepatocytes
Sample name Hepatocytes
Isolation/purification methods Differential centrifugation
Filtration
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
Western blotting
2
Experiment ID 95
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D7 Rep 1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.25 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
3
Experiment ID 96
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D2 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.16-1.21 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
4
Experiment ID 97
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D4 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.16-1.21 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
5
Experiment ID 98
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D7 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.25 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
 Protein-protein interactions for Copb2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 STXBP5L  
Affinity Capture-MS Homo sapiens
2 Park7 117287
Affinity Capture-MS Rattus norvegicus
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