Gene description for Gnb2
Gene name guanine nucleotide binding protein (G protein), beta 2
Gene symbol Gnb2
Other names/aliases Gnb-2
Species Mus musculus
 Database cross references - Gnb2
ExoCarta ExoCarta_14693
Vesiclepedia VP_14693
Entrez Gene 14693
UniProt P62880  
 Gnb2 identified in exosomes derived from the following tissue/cell type
Basophilic leukemia cells 20424270    
Colon cancer cells 37309723    
Embryonic fibroblasts 18494037    
Macrophages 23658846    
Macrophages 23658846    
Macrophages 23658846    
Oligodendrocytes 21136642    
T-cell lymphoma cells 37309723    
 Gene ontology annotations for Gnb2
Molecular Function
    protein complex binding GO:0032403 ISO
    protein binding GO:0005515 IPI
    signal transducer activity GO:0004871 IEA
    calcium channel regulator activity GO:0005246 ISO
    GTPase binding GO:0051020 ISO
    GTPase activity GO:0003924 ISA
Biological Process
    G-protein coupled receptor signaling pathway GO:0007186 TAS
    signal transduction GO:0007165 IEA
Subcellular Localization
    cell body GO:0044297 ISO
    protein complex GO:0043234 ISO
    lysosomal membrane GO:0005765 ISO
    myelin sheath GO:0043209 IDA
    cytoplasm GO:0005737 IEA
    extracellular exosome GO:0070062 ISO
    perinuclear region of cytoplasm GO:0048471 ISO
    vesicle GO:0031982 ISO
    extracellular space GO:0005615 ISO
    heterotrimeric G-protein complex GO:0005834 ISA
    focal adhesion GO:0005925 ISO
    membrane GO:0016020 ISO
 Experiment description of studies that identified Gnb2 in exosomes
1
Experiment ID 89
MISEV standards
✔
EM
EV Biophysical techniques
✘ EV Enriched markers
✘ EV Negative markers
✔
DLS
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20424270    
Organism Rattus norvegicus
Experiment description Exosomes account for vesicle-mediated transcellular transport of activatable phospholipases and prostaglandins.
Authors Subra C, Grand D, Laulagnier K, Stella A, Lambeau G, Paillasse M, De Medina P, Monsarrat B, Perret B, Silvente-Poirot S, Poirot M, Record M.
Journal name JLR
Publication year 2010
Sample Basophilic leukemia cells
Sample name RBL-2H3
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Lipids
Methods used in the study Western blotting
Gas chromatography
Thin layer chromatography
Mass spectrometry [Qstar XL]
FACS
2
Experiment ID 907
MISEV standards
✔
EM
EV Biophysical techniques
✔
Tsg101|Sdcbp|Cd151|Gapdh|Lamp2|Cd81|Cd82|Cd9|Cd63|Cd80|Flot2|Tfrc|Rab35|Rab5a
EV Enriched markers
✔
HSPA5
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 37309723    
Organism Mus musculus
Experiment description Proteomic analysis of the small extracellular vesicles and soluble secretory proteins from cachexia inducing and non-inducing cancer cells
Authors Chitti SV, Kang T, Fonseka P, Marzan AL, Stewart S, Shahi S, Bramich K, Ang CS, Pathan M, Gummadi S, Mathivanan S.
Journal name Proteomics
Publication year 2023
Sample Colon cancer cells
Sample name C26
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
3
Experiment ID 73
MISEV standards
✔
EM
EV Biophysical techniques
✔
HSP70|HSP90
EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 18494037    
Organism Mus musculus
Experiment description Difference gel electrophoresis analysis of Ras-transformed fibroblast cell-derived exosomes.
Authors Ji H, Erfani N, Tauro BJ, Kapp EA, Zhu HJ, Moritz RL, Lim JW, Simpson RJ
Journal name ELEC
Publication year 2008
Sample Embryonic fibroblasts
Sample name NIH3T3
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LCQ DECA]
Western blotting
4
Experiment ID 214
MISEV standards
✔
EM
EV Biophysical techniques
✘ EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name Leishmania-infected-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
5
Experiment ID 215
MISEV standards
✔
EM
EV Biophysical techniques
✘ EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name LPS-treated-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
6
Experiment ID 216
MISEV standards
✔
EM
EV Biophysical techniques
✘ EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name Normal-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
7
Experiment ID 33
MISEV standards
✔
EM|IEM
EV Biophysical techniques
✔
Alix|TSG101
EV Enriched markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 21136642    
Organism Mus musculus
Experiment description Oligodendrocytes secrete exosomes containing major myelin and stress-protective proteins: Trophic support for axons?
Authors Kramer-Albers EM, Bretz N, Tenzer S, Winterstein C, Mobius W, Berger H, Nave KA, Schild H, Trotter J
Journal name PROTEOMICS_CL
Publication year 2007
Sample Oligodendrocytes
Sample name Oligodendrocytes
Oli-neu
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.10-1.14 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
Western blotting
Immunoelectron Microscopy
8
Experiment ID 908
MISEV standards
✔
EM
EV Biophysical techniques
✔
Tsg101|Sdcbp|Cd151|Gapdh|Lamp2|Cd81|Cd82|Cd9|Cd63|Cd80|Flot2|Tfrc|Rab35|Rab5a
EV Enriched markers
✔
HSPA5
EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 37309723    
Organism Mus musculus
Experiment description Proteomic analysis of the small extracellular vesicles and soluble secretory proteins from cachexia inducing and non-inducing cancer cells
Authors Chitti SV, Kang T, Fonseka P, Marzan AL, Stewart S, Shahi S, Bramich K, Ang CS, Pathan M, Gummadi S, Mathivanan S.
Journal name Proteomics
Publication year 2023
Sample T-cell lymphoma cells
Sample name EL4
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
 Protein-protein interactions for Gnb2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 TGFBR1 7046
Affinity Capture-Luminescence Homo sapiens
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