Gene description for ARHGAP4
Gene name Rho GTPase activating protein 4
Gene symbol ARHGAP4
Other names/aliases C1
RGC1
RhoGAP4
SrGAP4
p115
Species Homo sapiens
 Database cross references - ARHGAP4
ExoCarta ExoCarta_393
Entrez Gene 393
HGNC 674
MIM 300023
UniProt P98171  
 ARHGAP4 identified in exosomes derived from the following tissue/cell type
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
 Gene ontology annotations for ARHGAP4
Molecular Function
    GTPase activator activity GO:0005096 IEA
    protein binding GO:0005515 IPI
    Rac GTPase binding GO:0048365 IBA
    SH3/SH2 adaptor activity GO:0005070 TAS
Biological Process
    small GTPase mediated signal transduction GO:0007264 TAS
    negative regulation of cell migration GO:0030336 IBA
    apoptotic signaling pathway GO:0097190 TAS
    regulation of small GTPase mediated signal transduction GO:0051056 TAS
    Rho protein signal transduction GO:0007266 TAS
    cytoskeleton organization GO:0007010 TAS
    neurotrophin TRK receptor signaling pathway GO:0048011 TAS
    positive regulation of apoptotic process GO:0043065 TAS
    positive regulation of signal transduction GO:0009967 TAS
    negative regulation of axon extension GO:0030517 IEA
    negative regulation of fibroblast migration GO:0010764 IEA
    positive regulation of GTPase activity GO:0043547 TAS
Subcellular Localization
    cytoplasm GO:0005737 IDA
    focal adhesion GO:0005925 IDA
    nucleoplasm GO:0005654 IDA
    growth cone GO:0030426 IEA
    Golgi apparatus GO:0005794 IEA
    microtubule GO:0005874 IEA
    cytosol GO:0005829 TAS
 Experiment description of studies that identified ARHGAP4 in exosomes
1
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
2
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
3
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
 Protein-protein interactions for ARHGAP4
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 NRAS 4893
Invitro Homo sapiens
View the network image/svg+xml
 Pathways in which ARHGAP4 is involved
PathwayEvidenceSource
G alpha (12/13) signalling events TAS Reactome
NRAGE signals death through JNK TAS Reactome
Rho GTPase cycle TAS Reactome





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