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 sEVs 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
    GTPase activity GO:0003924 ISO
    calcium channel regulator activity GO:0005246 ISO
    protein binding GO:0005515 IPI
    signaling receptor complex adaptor activity GO:0030159 IBA
    protein-containing complex binding GO:0044877 ISO
    GTPase binding GO:0051020 ISO
Biological Process
    G protein-coupled receptor signaling pathway GO:0007186 IBA
    G protein-coupled receptor signaling pathway GO:0007186 TAS
    regulation of potassium ion transmembrane transport GO:1901379 ISO
    regulation of potassium ion transmembrane transport GO:1901379 ISS
Subcellular Localization
    cytoplasm GO:0005737 IBA
    heterotrimeric G-protein complex GO:0005834 IBA
    heterotrimeric G-protein complex GO:0005834 ISO
    plasma membrane GO:0005886 ISO
    plasma membrane GO:0005886 ISS
    protein-containing complex GO:0032991 ISO
    myelin sheath GO:0043209 HDA
    cell body GO:0044297 ISO
    synapse GO:0045202 EXP
    synapse GO:0045202 IDA
    perinuclear region of cytoplasm GO:0048471 ISO
    perinuclear region of cytoplasm GO:0048471 ISS
 Experiment description of studies that identified Gnb2 in sEVs
1
Experiment ID 89
MISEV standards
EM
Biophysical techniques
Enriched markers
Negative markers
DLS
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
Biophysical techniques
Tsg101|Sdcbp|Cd151|Gapdh|Lamp2|Cd81|Cd82|Cd9|Cd63|Cd80|Flot2|Tfrc|Rab35|Rab5a
Enriched markers
HSPA5
Negative markers
NTA
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
Biophysical techniques
HSP70|HSP90
Enriched markers
Negative markers
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
Biophysical techniques
Enriched markers
Negative markers
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
Biophysical techniques
Enriched markers
Negative markers
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
Biophysical techniques
Enriched markers
Negative markers
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
Biophysical techniques
Alix|TSG101
Enriched markers
Negative markers
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
Biophysical techniques
Tsg101|Sdcbp|Cd151|Gapdh|Lamp2|Cd81|Cd82|Cd9|Cd63|Cd80|Flot2|Tfrc|Rab35|Rab5a
Enriched markers
HSPA5
Negative markers
NTA
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 Eed  
Affinity Capture-MS Mus musculus
2 Mettl21e  
Affinity Capture-MS Mus musculus
3 TGFBR1 7046
Affinity Capture-Luminescence Homo sapiens
4 SNCA 6622
Affinity Capture-MS Homo sapiens
5 Cebpa  
Affinity Capture-MS Mus musculus
6 Stip1 20867
Co-fractionation Mus musculus
7 Agap2  
Affinity Capture-MS Mus musculus
8 Atg16l1  
Affinity Capture-MS Mus musculus
9 Syngap1  
Affinity Capture-MS Mus musculus
10 ADCY5  
Two-hybrid Homo sapiens
11 Sstr3  
Proximity Label-MS Mus musculus
12 Kctd13  
Affinity Capture-MS Mus musculus
13 Dlgap1  
Affinity Capture-MS Mus musculus
Affinity Capture-MS Mus musculus
View the network image/svg+xml
 Pathways in which Gnb2 is involved
PathwayEvidenceSource
Activation of G protein gated Potassium channels IEA Reactome
Activation of GABAB receptors IEA Reactome
Activation of kainate receptors upon glutamate binding IEA Reactome
ADP signalling through P2Y purinoceptor 1 IEA Reactome
ADP signalling through P2Y purinoceptor 12 IEA Reactome
Adrenaline,noradrenaline inhibits insulin secretion IEA Reactome
Aquaporin-mediated transport IEA Reactome
Beta-catenin independent WNT signaling IEA Reactome
Ca2+ pathway IEA Reactome
Cellular responses to mechanical stimuli IEA Reactome
Cellular responses to stimuli IEA Reactome
Chaperonin-mediated protein folding IEA Reactome
Class B/2 (Secretin family receptors) IEA Reactome
Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding IEA Reactome
ESR-mediated signaling IEA Reactome
Extra-nuclear estrogen signaling IEA Reactome
G alpha (12/13) signalling events IEA Reactome
G alpha (i) signalling events IEA Reactome
G alpha (q) signalling events IEA Reactome
G alpha (s) signalling events IEA Reactome
G alpha (z) signalling events IEA Reactome
G beta:gamma signalling through BTK IEA Reactome
G beta:gamma signalling through CDC42 IEA Reactome
G beta:gamma signalling through PI3Kgamma IEA Reactome
G beta:gamma signalling through PLC beta IEA Reactome
G protein gated Potassium channels IEA Reactome
G-protein activation IEA Reactome
G-protein beta:gamma signalling IEA Reactome
GABA B receptor activation IEA Reactome
GABA receptor activation IEA Reactome
Glucagon-like Peptide-1 (GLP1) regulates insulin secretion IEA Reactome
Glucagon-type ligand receptors IEA Reactome
GPCR downstream signalling IEA Reactome
GPCR ligand binding IEA Reactome
GPER1 signaling IEA Reactome
Hemostasis IEA Reactome
High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells IEA Reactome
Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits IEA Reactome
Integration of energy metabolism IEA Reactome
Inwardly rectifying K+ channels IEA Reactome
Metabolism IEA Reactome
Metabolism of proteins IEA Reactome
Neuronal System IEA Reactome
Neurotransmitter receptors and postsynaptic signal transmission IEA Reactome
Opioid Signalling IEA Reactome
Platelet activation, signaling and aggregation IEA Reactome
Platelet homeostasis IEA Reactome
Potassium Channels IEA Reactome
Presynaptic function of Kainate receptors IEA Reactome
Prostacyclin signalling through prostacyclin receptor IEA Reactome
Protein folding IEA Reactome
Regulation of insulin secretion IEA Reactome
Response of endothelial cells to shear stress IEA Reactome
Signal amplification IEA Reactome
Signal Transduction IEA Reactome
Signaling by GPCR IEA Reactome
Signaling by Nuclear Receptors IEA Reactome
Signaling by WNT IEA Reactome
Thrombin signalling through proteinase activated receptors (PARs) IEA Reactome
Thromboxane signalling through TP receptor IEA Reactome
Transmission across Chemical Synapses IEA Reactome
Transport of small molecules IEA Reactome
Vasopressin regulates renal water homeostasis via Aquaporins IEA Reactome





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