Gene description for GJB1
Gene name gap junction protein, beta 1, 32kDa
Gene symbol GJB1
Other names/aliases CMTX
CMTX1
CX32
Species Homo sapiens
 Database cross references - GJB1
ExoCarta ExoCarta_2705
Entrez Gene 2705
HGNC 4283
MIM 304040
UniProt P08034  
 GJB1 identified in exosomes derived from the following tissue/cell type
Melanoma cells 25950383    
Melanoma cells 25950383    
Melanoma cells 25950383    
 Gene ontology annotations for GJB1
Molecular Function
    protein homodimerization activity GO:0042803 IEA
Biological Process
    cell-cell signaling GO:0007267 TAS
    nervous system development GO:0007399 TAS
    membrane organization GO:0061024 TAS
    transport GO:0006810 TAS
    gap junction assembly GO:0016264 TAS
Subcellular Localization
    endoplasmic reticulum membrane GO:0005789 TAS
    connexon complex GO:0005922 IEA
    integral component of membrane GO:0016021 IEA
 Experiment description of studies that identified GJB1 in exosomes
1
Experiment ID 255
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25950383    
Organism Homo sapiens
Experiment description Proteome characterization of melanoma exosomes reveals a specific signature for metastatic cell lines
Authors Lazar I, Clement E, Ducoux-Petit M, Denat L, Soldan V, Dauvillier S, Balor S4, Burlet-Schiltz O1, Larue L, Muller C Nieto L
Journal name Pigment Cell Melanoma Res
Publication year 2015
Sample Melanoma cells
Sample name G1
Isolation/purification methods Differential centrifugation
Unltracentrifugation
Sucrose density gradient
Flotation density 1.13 - 1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
2
Experiment ID 256
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25950383    
Organism Homo sapiens
Experiment description Proteome characterization of melanoma exosomes reveals a specific signature for metastatic cell lines
Authors Lazar I, Clement E, Ducoux-Petit M, Denat L, Soldan V, Dauvillier S, Balor S4, Burlet-Schiltz O1, Larue L, Muller C Nieto L
Journal name Pigment Cell Melanoma Res
Publication year 2015
Sample Melanoma cells
Sample name 501mel
Isolation/purification methods Differential centrifugation
Unltracentrifugation
Sucrose density gradient
Flotation density 1.13 - 1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
3
Experiment ID 257
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
FLOT1
EV Membrane markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25950383    
Organism Homo sapiens
Experiment description Proteome characterization of melanoma exosomes reveals a specific signature for metastatic cell lines
Authors Lazar I, Clement E, Ducoux-Petit M, Denat L, Soldan V, Dauvillier S, Balor S4, Burlet-Schiltz O1, Larue L, Muller C Nieto L
Journal name Pigment Cell Melanoma Res
Publication year 2015
Sample Melanoma cells
Sample name Daju
Isolation/purification methods Differential centrifugation
Unltracentrifugation
Sucrose density gradient
Flotation density 1.13 - 1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
 Protein-protein interactions for GJB1
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 OCLN  
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
2 GJB2  
Affinity Capture-MS Homo sapiens
3 JUP 3728
Affinity Capture-Western Homo sapiens
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