Gene description for Cd9
Gene name CD9 antigen
Gene symbol Cd9
Other names/aliases Tspan29
Species Mus musculus
 Database cross references - Cd9
ExoCarta ExoCarta_12527
Entrez Gene 12527
UniProt P40240  
 Cd9 identified in exosomes derived from the following tissue/cell type
Amniotic fluid 17700640    
Brain cancer cells 19109410    
Dendritic cells 10545503    
Dendritic cells 11390481    
Embryonic fibroblasts 18494037    
Macrophages 23658846    
Macrophages 23658846    
Macrophages 23658846    
Microglia 16081791    
Neural stem cells 25242146    
Neural stem cells 25242146    
Neural stem cells 25242146    
Urine 17700640    
 Gene ontology annotations for Cd9
Molecular Function
    protein binding GO:0005515 IPI
    integrin binding GO:0005178 ISO
Biological Process
    paranodal junction assembly GO:0030913 IDA
    cell adhesion GO:0007155 ISO
    movement of cell or subcellular component GO:0006928 ISO
    single fertilization GO:0007338 IEA
    fusion of sperm to egg plasma membrane GO:0007342 ISO
    negative regulation of cell proliferation GO:0008285 IDA
Subcellular Localization
    integral component of membrane GO:0016021 IEA
    membrane GO:0016020 IEA
    focal adhesion GO:0005925 ISO
    apical plasma membrane GO:0016324 ISO
    plasma membrane GO:0005886 TAS
    extracellular space GO:0005615 ISO
    extracellular exosome GO:0070062 ISO
    cell surface GO:0009986 ISO
    extracellular vesicle GO:1903561 ISO
    external side of plasma membrane GO:0009897 IDA
 Experiment description of studies that identified Cd9 in exosomes
1
Experiment ID 59
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD9
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 17700640    
Organism Mus musculus
Experiment description CD24 is a marker of exosomes secreted into urine and amniotic fluid.
Authors Keller S, Rupp C, Stoeck A, Runz S, Fogel M, Lugert S, Hager HD, Abdel-Bakky MS, Gutwein P, Altevogt P
Journal name KI
Publication year 2007
Sample Amniotic fluid
Sample name Amniotic fluid
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
2
Experiment ID 26
ISEV standards
✔
EM
EV Biophysical techniques
✔
Alix|GAPDH|HSP70
EV Cytosolic markers
✔
CD9
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 19109410    
Organism Mus musculus
Experiment description Proteomic and immunologic analyses of brain tumor exosomes.
Authors Graner MW, Alzate O, Dechkovskaia AM, Keene JD, Sampson JH, Mitchell DA, Bigner DD
Journal name FASEB
Publication year 2008
Sample Brain cancer cells
Sample name SMA560vIII
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.13-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF/TOF]
Western blotting
3
Experiment ID 3
ISEV standards
✔
IEM
EV Biophysical techniques
✔
HSP84|HSC73
EV Cytosolic markers
✔
MHCII|CD9|mac-1
EV Membrane markers
✔
CANX|HSP90B1
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
Western blotting
PubMed ID 10545503    
Organism Mus musculus
Experiment description Molecular characterization of dendritic cell-derived exosomes. Selective accumulation of the heat shock protein hsc73.
Authors Thery C, Regnault A, Garin J, Wolfers J, Zitvogel L, Ricciardi-Castagnoli P, Raposo G, Amigorena S.
Journal name JCB
Publication year 1999
Sample Dendritic cells
Sample name D1
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.14-1.20 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
4
Experiment ID 10
ISEV standards
✔
EM
EV Biophysical techniques
✔
Alix
EV Cytosolic markers
✔
CD9|MHCII|MHCI|CD86|LAMP2
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 11390481    
Organism Mus musculus
Experiment description Proteomic analysis of dendritic cell-derived exosomes: a secreted subcellular compartment distinct from apoptotic vesicles.
Authors Thery C, Boussac M, Veron P, Ricciardi-Castagnoli P, Raposo G, Garin J, Amigorena S.
Journal name JIMMU
Publication year 2001
Sample Dendritic cells
Sample name D1
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.15-1.18 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF]
Mass spectrometry [QTOF]
Western blotting
5
Experiment ID 73
ISEV standards
✔
EM
EV Biophysical techniques
✔
HSP70|HSP90
EV Cytosolic markers
✘ EV Membrane 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
6
Experiment ID 214
ISEV standards
✔
EM
EV Biophysical techniques
✘ EV Cytosolic markers
✘ EV Membrane 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
7
Experiment ID 215
ISEV standards
✔
EM
EV Biophysical techniques
✘ EV Cytosolic markers
✘ EV Membrane 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
8
Experiment ID 216
ISEV standards
✔
EM
EV Biophysical techniques
✘ EV Cytosolic markers
✘ EV Membrane 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
9
Experiment ID 14
ISEV standards
✔
EM
EV Biophysical techniques
✔
RAB7|RAB11
EV Cytosolic markers
✔
CD9|CD63|LAMP1|LAMP2
EV Membrane markers
✔
DNM
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
Western blotting
PubMed ID 16081791    
Organism Mus musculus
Experiment description Proteomic analysis of microglia-derived exosomes: metabolic role of the aminopeptidase CD13 in neuropeptide catabolism.
Authors Potolicchio I, Carven GJ, Xu X, Stipp C, Riese RJ, Stern LJ, Santambrogio L
Journal name JIMMU
Publication year 2005
Sample Microglia
Sample name N9
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LCQ DECA XP]
Western blotting
10
Experiment ID 262
ISEV standards
✔
EM
EV Biophysical techniques
✔
Alix|TSG101|HSP70|HSP90
EV Cytosolic markers
✔
CD63|CD9|
EV Membrane markers
✘ EV Negative markers
✔
Y
EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25242146    
Organism Mus musculus
Experiment description Extracellular Vesicles from Neural Stem Cells Transfer IFN-γ via Ifngr1 to Activate Stat1 Signaling in Target Cells
Authors Chiara Cossetti, Nunzio Iraci, Tim R. Mercer, Tommaso Leonardi, Emanuele Alpi, Denise Drago, Clara Alfaro-Cervello, Harpreet K. Saini, Matthew P. Davis, Julia Schaeffer, Beatriz Vega, Matilde Stefanini, CongJian Zhao, Werner Muller, Jose Manuel Garcia-Verdugo, Suresh Mathivanan, Angela Bachi, Anton J. Enright, John S. Mattick, Stefano Pluchino
Journal name Molecular Cell
Publication year 2014
Sample Neural stem cells
Sample name NPCs
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.20 g/mL
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
Microarray
11
Experiment ID 263
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD63|CD9
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25242146    
Organism Mus musculus
Experiment description Extracellular Vesicles from Neural Stem Cells Transfer IFN-γ via Ifngr1 to Activate Stat1 Signaling in Target Cells
Authors Chiara Cossetti, Nunzio Iraci, Tim R. Mercer, Tommaso Leonardi, Emanuele Alpi, Denise Drago, Clara Alfaro-Cervello, Harpreet K. Saini, Matthew P. Davis, Julia Schaeffer, Beatriz Vega, Matilde Stefanini, CongJian Zhao, Werner Muller, Jose Manuel Garcia-Verdugo, Suresh Mathivanan, Angela Bachi, Anton J. Enright, John S. Mattick, Stefano Pluchino
Journal name Molecular Cell
Publication year 2014
Sample Neural stem cells
Sample name NPCs - Th1 treated
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.20 g/mL
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
12
Experiment ID 264
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD63|CD9
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 25242146    
Organism Mus musculus
Experiment description Extracellular Vesicles from Neural Stem Cells Transfer IFN-γ via Ifngr1 to Activate Stat1 Signaling in Target Cells
Authors Chiara Cossetti, Nunzio Iraci, Tim R. Mercer, Tommaso Leonardi, Emanuele Alpi, Denise Drago, Clara Alfaro-Cervello, Harpreet K. Saini, Matthew P. Davis, Julia Schaeffer, Beatriz Vega, Matilde Stefanini, CongJian Zhao, Werner Muller, Jose Manuel Garcia-Verdugo, Suresh Mathivanan, Angela Bachi, Anton J. Enright, John S. Mattick, Stefano Pluchino
Journal name Molecular Cell
Publication year 2014
Sample Neural stem cells
Sample name NPCs - Th2 treated
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.20 g/mL
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
13
Experiment ID 60
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD9
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 17700640    
Organism Mus musculus
Experiment description CD24 is a marker of exosomes secreted into urine and amniotic fluid.
Authors Keller S, Rupp C, Stoeck A, Runz S, Fogel M, Lugert S, Hager HD, Abdel-Bakky MS, Gutwein P, Altevogt P
Journal name KI
Publication year 2007
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
 Protein-protein interactions for Cd9
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which Cd9 is involved
PathwayEvidenceSource
Platelet degranulation IEA Reactome
Sperm:Oocyte Membrane Binding IEA Reactome





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