Gene description for ITGA4
Gene name integrin, alpha 4 (antigen CD49D, alpha 4 subunit of VLA-4 receptor)
Gene symbol ITGA4
Other names/aliases CD49D
IA4
Species Homo sapiens
 Database cross references - ITGA4
ExoCarta ExoCarta_3676
Entrez Gene 3676
HGNC 6140
MIM 192975
UniProt P13612  
 ITGA4 identified in exosomes derived from the following tissue/cell type
B cells 12519789    
B cells 20458337    
B cells 20458337    
B cells 20458337    
Melanoma cells 25950383    
Melanoma cells 25950383    
Melanoma cells 25950383    
Mesenchymal stem cells Unpublished / Not applicable
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
Thymus 23844026    
 Gene ontology annotations for ITGA4
Molecular Function
    fibronectin binding GO:0001968 IEA
    metal ion binding GO:0046872 IEA
    protein binding GO:0005515 IPI
    cell adhesion molecule binding GO:0050839 IPI
Biological Process
    B cell differentiation GO:0030183 IC
    extracellular matrix organization GO:0030198 TAS
    T cell migration GO:0072678 IEA
    heart development GO:0007507 IEA
    heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules GO:0007157 IEA
    blood vessel remodeling GO:0001974 IEA
    leukocyte tethering or rolling GO:0050901 IMP
    endodermal cell differentiation GO:0035987 IEP
    chorio-allantoic fusion GO:0060710 IEA
    cell-matrix adhesion involved in ameboidal cell migration GO:0003366 IMP
    face development GO:0060324 IEA
    regulation of immune response GO:0050776 TAS
    heterotypic cell-cell adhesion GO:0034113 IMP
    leukocyte migration GO:0050900 TAS
    negative regulation of protein homodimerization activity GO:0090074 IDA
    substrate adhesion-dependent cell spreading GO:0034446 IMP
    leukocyte cell-cell adhesion GO:0007159 IDA
    integrin-mediated signaling pathway GO:0007229 IEA
    blood coagulation GO:0007596 TAS
    cell-matrix adhesion GO:0007160 IMP
    receptor clustering GO:0043113 IMP
Subcellular Localization
    cell surface GO:0009986 IDA
    plasma membrane GO:0005886 TAS
    membrane GO:0016020 IDA
    focal adhesion GO:0005925 IDA
    integrin alpha4-beta7 complex GO:0034669 IDA
    cell-cell junction GO:0005911 IEA
    extracellular exosome GO:0070062 IDA
    external side of plasma membrane GO:0009897 IEA
 Experiment description of studies that identified ITGA4 in exosomes
1
Experiment ID 11
ISEV standards
✘ EV Biophysical techniques
✔
HSC70|HSP90
EV Cytosolic markers
✔
MHCII|CD63|CD81
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry [MALDI TOF]
Mass spectrometry [QTOF]
PubMed ID 12519789    
Organism Homo sapiens
Experiment description Proteomic and biochemical analyses of human B cell-derived exosomes. Potential implications for their function and multivesicular body formation.
Authors Wubbolts R, Leckie RS, Veenhuizen PT, Schwarzmann G, Mobius W, Hoernschemeyer J, Slot JW, Geuze HJ, Stoorvogel W
Journal name JBC
Publication year 2003
Sample B cells
Sample name RN (HLA-DR15+)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.15 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [MALDI TOF]
Mass spectrometry [QTOF]
Western blotting
Thin layer chromatography
HPLC
2
Experiment ID 79
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD81|MHCII
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis - Sample 1
Authors Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W.
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
3
Experiment ID 80
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD81|MHCII
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis -Sample 2
Authors Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W.
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
4
Experiment ID 81
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✔
CD81|MHCII
EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20458337    
Organism Homo sapiens
Experiment description MHC class II-associated proteins in B-cell exosomes and potential functional implications for exosome biogenesis - Sample 3
Authors Buschow SI, van Balkom BW, Aalberts M, Heck AJ, Wauben M, Stoorvogel W.
Journal name ICB
Publication year 2010
Sample B cells
Sample name RN (HLA-DR15)
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Immunobeads (MHC Class II)
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [FT-ICR]
Western blotting
5
Experiment ID 258
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
FLOT1|CD81
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 SKMEL28
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
6
Experiment ID 259
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 A375M
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
7
Experiment ID 260
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
FLOT1|CD81
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 1205Lu
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
8
Experiment ID 126
ISEV standards
✘ EV Biophysical techniques
✔
GAPDH
EV Cytosolic markers
✘ EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry [LTQ-FT Ultra]
PubMed ID Unpublished / Not applicable
Organism Homo sapiens
Experiment description Mesenchymal Stem Cell Exosomes: The Future MSC-based Therapy?
Authors Ruenn Chai Lai, Ronne Wee Yeh Yeo, Soon Sim Tan, Bin Zhang, Yijun Yin, Newman Siu Kwan Sze, Andre Choo, and Sai Kiang Lim
Journal name Mesenchymal Stem Cell Therapy
Publication year 2011
Sample Mesenchymal stem cells
Sample name huES9.E1
Isolation/purification methods HPLC
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Antobody array
Mass spectrometry
9
Experiment ID 231
ISEV standards
✘ EV Biophysical techniques
✔
Alix
EV Cytosolic markers
✔
CD63|CD9
EV Membrane markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Western blotting
Mass spectrometry
10
Experiment ID 232
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✘ EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
11
Experiment ID 233
ISEV standards
✘ EV Biophysical techniques
✘ EV Cytosolic markers
✘ EV Membrane markers
✘ EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 3
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
12
Experiment ID 217
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101
EV Cytosolic markers
✔
CD81|CD9|CD63
EV Membrane markers
✘ EV Negative markers
✔
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23844026    
Organism Homo sapiens
Experiment description Characterization of human thymic exosomes.
Authors Skogberg G, Gudmundsdottir J, van der Post S, Sandstrom K, Bruhn S, Benson M, Mincheva-Nilsson L, Baranov V, Telemo E, Ekwall O.
Journal name PLoS One
Publication year 2013
Sample Thymus
Sample name Normal-Thymus
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for ITGA4
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 CD81 975
Affinity Capture-Western Homo sapiens
2 VCAN 1462
Invitro Homo sapiens
3 LGALS8 3964
Invivo Homo sapiens
Invitro Homo sapiens
4 PXN  
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
5 PTK2 5747
Affinity Capture-Western Homo sapiens
6 MADCAM1  
Invitro Homo sapiens
7 EED  
Two-hybrid Homo sapiens
8 ICAM4  
Invitro Homo sapiens
View the network image/svg+xml



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