Gene description for CFI
Gene name complement factor I
Gene symbol CFI
Other names/aliases AHUS3
ARMD13
C3BINA
C3b-INA
FI
IF
KAF
Species Homo sapiens
 Database cross references - CFI
ExoCarta ExoCarta_3426
Vesiclepedia VP_3426
Entrez Gene 3426
HGNC 5394
MIM 217030
UniProt P05156  
 CFI identified in sEVs derived from the following tissue/cell type
Keratinocytes 19530224    
Keratinocytes 19530224    
Mesenchymal stem cells Unpublished / Not applicable
Prostate cancer cells 22723089    
Prostate cancer cells 25844599    
Urine 19056867    
 Gene ontology annotations for CFI
Molecular Function
    serine-type endopeptidase activity GO:0004252 IEA
    protein binding GO:0005515 IPI
    metal ion binding GO:0046872 IEA
Biological Process
    proteolysis GO:0006508 IEA
    complement activation, classical pathway GO:0006958 IEA
    innate immune response GO:0045087 IEA
Subcellular Localization
    extracellular region GO:0005576 TAS
    extracellular space GO:0005615 HDA
    membrane GO:0016020 IEA
    extracellular exosome GO:0070062 HDA
 Experiment description of studies that identified CFI in sEVs
1
Experiment ID 189
MISEV standards
✔
EM
Biophysical techniques
✘ Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19530224    
Organism Homo sapiens
Experiment description Profile of exosomes related proteins released by differentiated and undifferentiated human keratinocytes.
Authors "Chavez-Muñoz C, Kilani RT, Ghahary A."
Journal name J Cell Physiol
Publication year 2009
Sample Keratinocytes
Sample name Keratinocytes - Differentiated
Isolation/purification methods Differential centrifugation
Filtration
Sucrose cushion
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 190
MISEV standards
✔
EM
Biophysical techniques
✔
HSC70
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19530224    
Organism Homo sapiens
Experiment description Profile of exosomes related proteins released by differentiated and undifferentiated human keratinocytes.
Authors "Chavez-Muñoz C, Kilani RT, Ghahary A."
Journal name J Cell Physiol
Publication year 2009
Sample Keratinocytes
Sample name Keratinocytes - Undifferentiated
Isolation/purification methods Differential centrifugation
Filtration
Sucrose cushion
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 126
MISEV standards
✘ Biophysical techniques
✔
GAPDH
Enriched markers
✘ Negative markers
✘ 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
4
Experiment ID 146
MISEV standards
✔
EM
Biophysical techniques
✔
HSP70|HSP90|CD9
Enriched markers
✔
HSP90B1
Negative markers
✘ Particle analysis
Identified molecule protein
Identification method
Mass spectrometry [QTOF]   
PubMed ID 22723089    
Organism Homo sapiens
Experiment description Prostate cancer cell derived exosomes
Authors "Hosseini-Beheshti E, Guns ES."
Journal name MCP
Publication year 2012
Sample Prostate cancer cells
Sample name RWPE - Rep 2
Isolation/purification methods Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
5
Experiment ID 275
MISEV standards
✔
EM
Biophysical techniques
✔
TSG101|Alix|RAB5A|CD9|CD82|CD63|CD81
Enriched markers
✔
AIF
Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25844599    
Organism Homo sapiens
Experiment description Molecular profiling of prostate cancer derived exosomes may reveal a predictive signature for response to docetaxel.
Authors "Kharaziha P, Chioureas D, Rutishauser D, Baltatzis G, Lennartsson L, Fonseca P, Azimi A, Hultenby K, Zubarev R, Ullen A, Yachnin J, Nilsson S, Panaretakis T."
Journal name Oncotarget
Publication year 2015
Sample Prostate cancer cells
Sample name DU145 - Docetaxel sensitive
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.12-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry/Flow cytometry/Western blotting
6
Experiment ID 63
MISEV standards
✘ Biophysical techniques
✔
AQP2
Enriched markers
✘ Negative markers
✘ Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors "Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA"
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
 Protein-protein interactions for CFI
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 DYNC1I2 1781
Proximity Label-MS Homo sapiens
2 GLP1R  
PCA Homo sapiens
Affinity Capture-Western Homo sapiens
3 KLK10 5655
Affinity Capture-MS Homo sapiens
4 JUP 3728
Affinity Capture-MS Homo sapiens
5 ECM1 1893
Affinity Capture-MS Homo sapiens
Affinity Capture-MS Homo sapiens
6 AGPAT1 10554
Affinity Capture-MS Homo sapiens
7 TRIM31  
Affinity Capture-MS Homo sapiens
8 C3 718
Biochemical Activity Homo sapiens
Reconstituted Complex Homo sapiens
9 POTEI 653269
Affinity Capture-MS Homo sapiens
View the network image/svg+xml
 Pathways in which CFI is involved
PathwayEvidenceSource
Complement cascade TAS Reactome
Immune System TAS Reactome
Innate Immune System TAS Reactome
Regulation of Complement cascade TAS Reactome





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