Gene description for ARHGEF18
Gene name Rho/Rac guanine nucleotide exchange factor (GEF) 18
Gene symbol ARHGEF18
Other names/aliases P114-RhoGEF
Species Homo sapiens
 Database cross references - ARHGEF18
ExoCarta ExoCarta_23370
Vesiclepedia VP_23370
Entrez Gene 23370
HGNC 17090
UniProt Q6ZSZ5  
 ARHGEF18 identified in sEVs derived from the following tissue/cell type
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Bone marrow mesenchymal stem cells 36408942    
Hepatocellular carcinoma cells 26054723    
Mesenchymal stem cells 36408942    
 Gene ontology annotations for ARHGEF18
Molecular Function
    guanyl-nucleotide exchange factor activity GO:0005085 IDA
    protein binding GO:0005515 IPI
    metal ion binding GO:0046872 IEA
Biological Process
    small GTPase-mediated signal transduction GO:0007264 IDA
    regulation of cell shape GO:0008360 IDA
    actin cytoskeleton organization GO:0030036 IDA
    regulation of Rho protein signal transduction GO:0035023 IBA
    negative regulation of stress fiber assembly GO:0051497 IMP
    protein localization to cell-cell junction GO:0150105 IMP
Subcellular Localization
    cytosol GO:0005829 IDA
    cytosol GO:0005829 TAS
    cytoskeleton GO:0005856 IEA
    plasma membrane GO:0005886 IBA
    plasma membrane GO:0005886 IDA
    apical plasma membrane GO:0016324 IEA
    cell junction GO:0030054 TAS
    apical part of cell GO:0045177 IDA
    extracellular exosome GO:0070062 HDA
 Experiment description of studies that identified ARHGEF18 in sEVs
1
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 Mass spectrometry
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
2
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 Mass spectrometry
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
3
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 Mass spectrometry
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
4
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 Mass spectrometry
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
5
Experiment ID 235
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|Alix|HSC70|GAPDH
Enriched markers
✔
HSP90B1
Negative markers
✔
qNano
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors "He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N"
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name HKCI-8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
6
Experiment ID 488
MISEV standards
✔
EM
Biophysical techniques
✔
CD9|CD81|CD63|GAPDH|SDCBP|LAMP1|TFRC|UCHL1|FLOT2|LAMP2|FLOT1|ICAM1|RAB5B|CD151|RAB35|TSG101|RAB5A|CD82
Enriched markers
✔
CANX
Negative markers
✔
NTA
Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 36408942    
Organism Homo sapiens
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 Mesenchymal stem cells
Sample name UCMSC
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectometry
 Protein-protein interactions for ARHGEF18
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 SLIRP 81892
Affinity Capture-MS Homo sapiens
2 PLEKHA4 57664
Affinity Capture-MS Homo sapiens
3 GART 2618
Affinity Capture-MS Homo sapiens
4 VAPA 9218
Affinity Capture-MS Homo sapiens
5 LTBR 4055
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
6 PARD3 56288
Proximity Label-MS Homo sapiens
7 TERF1 7013
Affinity Capture-MS Homo sapiens
8 HRAS 3265
Reconstituted Complex Homo sapiens
9 YWHAZ 7534
Affinity Capture-MS Homo sapiens
10 AKAP13 11214
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
11 PLOD1 5351
Affinity Capture-MS Homo sapiens
12 TAF10 6881
Affinity Capture-MS Homo sapiens
13 CFL1 1072
Affinity Capture-MS Homo sapiens
14 GNB1 2782
Affinity Capture-Western Homo sapiens
15 MKI67  
Affinity Capture-MS Homo sapiens
16 CAPZB 832
Co-fractionation Homo sapiens
17 TRIM37  
Proximity Label-MS Homo sapiens
18 ARRB1 408
Co-fractionation Homo sapiens
19 AKIRIN2  
Affinity Capture-MS Homo sapiens
20 CCT2 10576
Cross-Linking-MS (XL-MS) Homo sapiens
21 RHOB 388
Proximity Label-MS Homo sapiens
22 RHOA 387
Reconstituted Complex Homo sapiens
23 PPM1A 5494
Co-fractionation Homo sapiens
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