Gene description for Cd9
Gene name CD9 molecule
Gene symbol Cd9
Other names/aliases -
Species Rattus norvegicus
 Database cross references - Cd9
ExoCarta ExoCarta_24936
Vesiclepedia VP_24936
Entrez Gene 24936
UniProt P40241  
 Cd9 identified in sEVs derived from the following tissue/cell type
Adipocytes 25998041    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Neural stem cells 31848325    
Neural stem cells 31848325    
Pancreatic cancer cells 20124479    
Pancreatic cancer cells 20124479    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
Schwann cells 36717543    
Serum 33159193    
 Gene ontology annotations for Cd9
Molecular Function
    integrin binding GO:0005178 IEA
    integrin binding GO:0005178 IPI
    integrin binding GO:0005178 ISO
    protein binding GO:0005515 IPI
Biological Process
    cell adhesion GO:0007155 IEA
    cell adhesion GO:0007155 ISO
    cell adhesion GO:0007155 ISS
    single fertilization GO:0007338 ISO
    single fertilization GO:0007338 ISS
    fusion of sperm to egg plasma membrane involved in single fertilization GO:0007342 IEA
    fusion of sperm to egg plasma membrane involved in single fertilization GO:0007342 ISO
    fusion of sperm to egg plasma membrane involved in single fertilization GO:0007342 ISS
    cell population proliferation GO:0008283 ISO
    negative regulation of cell population proliferation GO:0008285 ISO
    glial cell migration GO:0008347 IEA
    glial cell migration GO:0008347 ISO
    oligodendrocyte development GO:0014003 IEP
    myoblast fusion involved in skeletal muscle regeneration GO:0014905 ISO
    myoblast fusion involved in skeletal muscle regeneration GO:0014905 ISS
    paranodal junction assembly GO:0030913 ISO
    paranodal junction assembly GO:0030913 ISS
    receptor internalization GO:0031623 ISO
    receptor internalization GO:0031623 ISS
    sperm-egg recognition GO:0035036 ISO
    sperm-egg recognition GO:0035036 ISS
    cellular response to low-density lipoprotein particle stimulus GO:0071404 ISO
    cellular response to low-density lipoprotein particle stimulus GO:0071404 ISS
    negative regulation of platelet aggregation GO:0090331 IEA
    negative regulation of platelet aggregation GO:0090331 ISO
    negative regulation of platelet aggregation GO:0090331 ISS
    regulation of macrophage migration GO:1905521 ISO
Subcellular Localization
    plasma membrane GO:0005886 IBA
    plasma membrane GO:0005886 IEA
    plasma membrane GO:0005886 ISO
    external side of plasma membrane GO:0009897 ISO
    cell surface GO:0009986 IDA
    cell surface GO:0009986 ISO
    membrane GO:0016020 IEA
    membrane GO:0016020 ISO
    apical plasma membrane GO:0016324 IDA
    protein-containing complex GO:0032991 IEA
    protein-containing complex GO:0032991 ISO
    extracellular exosome GO:0070062 IDA
    extracellular exosome GO:0070062 IEA
    extracellular exosome GO:0070062 ISO
 Experiment description of studies that identified Cd9 in sEVs
1
Experiment ID 225
MISEV standards
✔
EM
Biophysical techniques
✔
GAPDH|CD63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25998041    
Organism Rattus norvegicus
Experiment description Proteomic Analysis of Extracellular Vesicles Released by Adipocytes of Otsuka Long-Evans Tokushima Fatty (OLETF) Rats.
Authors "Lee JE, Moon PG, Lee IK, Baek MC"
Journal name Protein J
Publication year 2015
Sample Adipocytes
Sample name Adipocytes
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
2
Experiment ID 489
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
✔
Canx
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors "Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ."
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 6
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
3
Experiment ID 490
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
✔
Canx
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors "Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ."
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 7
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
4
Experiment ID 491
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
✔
Canx
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors "Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ."
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
5
Experiment ID 492
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd81|Cd63|Gapdh|Sdcbp|Lamp1|Aqp1|Rab5a|Icam1|Cd82|Itga2b|Tsg101|Lamp2|Rab35|Flot1|Flot2|Cd151|Rab5b|Tfrc|Uchl1
Enriched markers
✔
Canx
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 36408942    
Organism Rattus norvegicus
Experiment description Quantitative proteomic analysis of exosomes from umbilical cord mesenchymal stem cells and rat bone marrow stem cells
Authors "Xu X, Yin F, Guo M, Gan G, Lin G, Wen C, Wang J, Song P, Wang J, Qi ZQ, Zhong CQ."
Journal name Proteomics
Publication year 2023
Sample Bone marrow mesenchymal stem cells
Sample name BMSC - Passage 9
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
6
Experiment ID 1217
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 31848325    
Organism Rattus norvegicus
Experiment description Insulin-like growth factor-1 enchances neuroprotective effects of neural stem cell exosomes after spinal cord injury via an miR-219a-2-3p/YY1 mechanism
Authors "Ma K, Xu H, Zhang J, Zhao F, Liang H, Sun H, Li P, Zhang S, Wang R, Chen X."
Journal name Aging
Publication year 2019
Sample Neural stem cells
Sample name Cerebral cortex-derived NSCs
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
miRNA
Methods used in the study Western blotting
RNA sequencing
qRT-PCR
7
Experiment ID 1218
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 31848325    
Organism Rattus norvegicus
Experiment description Insulin-like growth factor-1 enchances neuroprotective effects of neural stem cell exosomes after spinal cord injury via an miR-219a-2-3p/YY1 mechanism
Authors "Ma K, Xu H, Zhang J, Zhao F, Liang H, Sun H, Li P, Zhang S, Wang R, Chen X."
Journal name Aging
Publication year 2019
Sample Neural stem cells
Sample name Cerebral cortex-derived NSCs
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
miRNA
Methods used in the study Western blotting
RNA sequencing
qRT-PCR
8
Experiment ID 93
MISEV standards
✔
EM
Biophysical techniques
✔
HSP70|GAPDH|CD9|CD151
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 20124479    
Organism Rattus norvegicus
Experiment description Cell surface tetraspanin Tspan8 contributes to molecular pathways of exosome-induced endothelial cell activation.
Authors "Nazarenko I, Rana S, Baumann A, McAlear J, Hellwig A, Trendelenburg M, Lochnit G, Preissner KT, Zoller M."
Journal name CR
Publication year 2010
Sample Pancreatic cancer cells
Sample name AS-Tspan8
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.14-1.17 g/mL
Molecules identified in the study Protein
mRNA
Methods used in the study RT-PCR
Western blotting
9
Experiment ID 92
MISEV standards
✔
EM
Biophysical techniques
✔
HSP70|GAPDH|CD9|CD151
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 20124479    
Organism Rattus norvegicus
Experiment description Cell surface tetraspanin Tspan8 contributes to molecular pathways of exosome-induced endothelial cell activation.
Authors "Nazarenko I, Rana S, Baumann A, McAlear J, Hellwig A, Trendelenburg M, Lochnit G, Preissner KT, Zoller M."
Journal name CR
Publication year 2010
Sample Pancreatic cancer cells
Sample name AS
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.14-1.17 g/mL
Molecules identified in the study Protein
mRNA
Methods used in the study RT-PCR
Western blotting
RatRef-12 Microarray
FACS
Mass spectrometry [MALDI TOF]
10
Experiment ID 90
MISEV standards
✔
EM
Biophysical techniques
✔
HSC70|HSP90|TSG101|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 1
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
11
Experiment ID 94
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 1
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
12
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
13
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
14
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
15
Experiment ID 99
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [QSTAR]
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 3
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
16
Experiment ID 100
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|HSP90|HSC70|MHCI
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry [QSTAR]
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 3
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
17
Experiment ID 678
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Western blotting
PubMed ID 36717543    
Organism Rattus norvegicus
Experiment description Schwann cell-derived exosomes containing MFG-E8 modify macrophage/microglial polarization for attenuating inflammation via the SOCS3/STAT3 pathway after spinal cord injury
Authors "Ren J, Zhu B, Gu G, Zhang W, Li J, Wang H, Wang M, Song X, Wei Z, Feng S."
Journal name Cell Death Dis
Publication year 2023
Sample Schwann cells
Sample name Sciatic nerve-derived schwann cells
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
18
Experiment ID 323
MISEV standards
✔
EM
Biophysical techniques
✔
Cd9|Cd81|Cd63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Western blotting
PubMed ID 33159193    
Organism Rattus norvegicus
Experiment description Treatment of infarcted heart tissue via the capture and local delivery of circulating exosomes through antibody-conjugated magnetic nanoparticles
Authors "Liu S, Chen X, Bao L, Liu T, Yuan P, Yang X, Qiu X, Gooding JJ, Bai Y, Xiao J, Pu F, Jin Y. "
Journal name Nat Biomed Eng
Publication year 2020
Sample Serum
Sample name Serum - Sprague Dawley rats
Isolation/purification methods Differential centrifugation
Ultracentrifugation
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
1 Itm2b 290364
Affinity Capture-MS Rattus norvegicus
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