Gene description for CTTN
Gene name cortactin
Gene symbol CTTN
Other names/aliases EMS1
Species Homo sapiens
 Database cross references - CTTN
ExoCarta ExoCarta_2017
Entrez Gene 2017
HGNC 3338
MIM 164765
UniProt Q14247  
 CTTN identified in exosomes derived from the following tissue/cell type
Bladder cancer cells 20224111    
Colorectal cancer cells 17956143    
Hepatocellular carcinoma cells 26054723    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
Prostate cancer cells 25844599    
Prostate cancer cells 25844599    
 Gene ontology annotations for CTTN
Molecular Function
    protein binding GO:0005515 IPI
    profilin binding GO:0005522 IPI
Biological Process
    actin cytoskeleton reorganization GO:0031532 ISS
    lamellipodium organization GO:0097581 ISS
    intracellular protein transport GO:0006886 IMP
    actin filament polymerization GO:0030041 IEA
    dendritic spine maintenance GO:0097062 IEA
    regulation of axon extension GO:0030516 ISS
    receptor-mediated endocytosis GO:0006898 ISS
    neuron projection morphogenesis GO:0048812 ISS
    negative regulation of extrinsic apoptotic signaling pathway GO:2001237 IEA
    substrate-dependent cell migration, cell extension GO:0006930 IEA
    positive regulation of actin filament polymerization GO:0030838 ISS
    focal adhesion assembly GO:0048041 ISS
    small GTPase mediated signal transduction GO:0007264 TAS
    positive regulation of smooth muscle contraction GO:0045987 IMP
    cell motility GO:0048870 ISS
Subcellular Localization
    focal adhesion GO:0005925 IDA
    cytoplasm GO:0005737 ISS
    dendritic spine GO:0043197 IEA
    ruffle GO:0001726 ISS
    podosome GO:0002102 IEA
    mitotic spindle midzone GO:1990023 IEA
    growth cone GO:0030426 ISS
    voltage-gated potassium channel complex GO:0008076 IDA
    extracellular exosome GO:0070062 IDA
    lamellipodium GO:0030027 ISS
    cortical cytoskeleton GO:0030863 IDA
    actin filament GO:0005884 IDA
    cell cortex GO:0005938 ISS
    cytoskeleton GO:0005856 TAS
    coated pit GO:0005905 ISS
 Experiment description of studies that identified CTTN in exosomes
1
Experiment ID 76
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|GAPDH|HSP90
EV Cytosolic markers
✔
CD81|CD9|CD63|LAMP1|MHCI
EV Membrane markers
✔
HSP90B1
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 20224111    
Organism Homo sapiens
Experiment description Proteomics analysis of bladder cancer exosomes.
Authors Welton JL, Khanna S, Giles PJ, Brennan P, Brewis IA, Staffurth J, Mason MD, Clayton A.
Journal name MCP
Publication year 2010
Sample Bladder cancer cells
Sample name HT1376
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.10-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [MALDI TOF/TOF]
Western blotting
FACS
2
Experiment ID 20
ISEV standards
✔
EM
EV Biophysical techniques
✔
HSP90
EV Cytosolic markers
✔
CD63|CD81|LAMP1
EV Membrane markers
✔
GOLGA2|cytochrome c
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 17956143    
Organism Homo sapiens
Experiment description Proteomic analysis of microvesicles derived from human colorectal cancer cells.
Authors Choi DS, Lee JM, Park GW, Lim HW, Bang JY, Kim YK, Kwon KH, Kwon HJ, Kim KP, Gho YS
Journal name JPR
Publication year 2007
Sample Colorectal cancer cells
Sample name HT29
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Diafiltration
Flotation density 1.16 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
3
Experiment ID 235
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
✘ EV Membrane markers
✔
HSP90B1
EV Negative markers
✔
qNano
EV Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
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
4
Experiment ID 211
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|Alix
EV Cytosolic markers
✔
EpCAM|TFRC
EV Membrane markers
✔
cytochrome c|GOLGA2
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name IGROV1
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
5
Experiment ID 212
ISEV standards
✔
CEM
EV Biophysical techniques
✔
TSG101|Alix
EV Cytosolic markers
✔
EpCAM|TFRC
EV Membrane markers
✔
Cytochrome C|GOLGA2
EV Negative markers
✘ EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23333927    
Organism Homo sapiens
Experiment description Characterization and proteomic analysis of ovarian cancer-derived exosomes.
Authors Liang B, Peng P, Chen S, Li L, Zhang M, Cao D, Yang J, Li H, Gui T, Li X, Shen K.
Journal name J Proteomics
Publication year 2013
Sample Ovarian cancer cells
Sample name OVCAR-3
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.09-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
6
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
7
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
8
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
9
Experiment ID 275
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|Alix|RAB5A
EV Cytosolic markers
✔
CD9|CD82|CD63|CD81
EV Membrane markers
✔
AIF
EV Negative markers
✔
NTA
EV 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
10
Experiment ID 274
ISEV standards
✔
EM
EV Biophysical techniques
✔
TSG101|Alix|RAB5A
EV Cytosolic markers
✔
CD9|CD82|CD63|CD81
EV Membrane markers
✔
AIF
EV Negative markers
✔
NTA
EV 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 resistant
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.18 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Flow cytometry
Western blotting
 Protein-protein interactions for CTTN
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 SHANK2 22941
Two-hybrid Homo sapiens
Affinity Capture-Western Homo sapiens
2 CRB2 286204
Affinity Capture-Western Homo sapiens
3 ARHGAP17 55114
Reconstituted Complex Homo sapiens
4 FER  
Affinity Capture-Western Homo sapiens
Co-fractionation Homo sapiens
Biochemical Activity Homo sapiens
5 MYLK 4638
Invitro Homo sapiens
6 DNM1 1759
Invitro Homo sapiens
Invivo Homo sapiens
7 SYK 6850
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
8 TJP1 7082
Invitro Homo sapiens
Invivo Homo sapiens
9 DNM2 1785
Invitro Homo sapiens
Invivo Homo sapiens
10 KCNA2  
Invivo Homo sapiens
Invitro Homo sapiens
11 GRB2 2885
Affinity Capture-MS Homo sapiens
12 SDC3  
Invitro Homo sapiens
Affinity Capture-MS Homo sapiens
13 CHD3  
Two-hybrid Homo sapiens
14 ACTR3 10096
Invivo Homo sapiens
Invitro Homo sapiens
15 CTNND1 1500
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
16 WIPF1 7456
Two-hybrid Homo sapiens
Reconstituted Complex Homo sapiens
Affinity Capture-Western Homo sapiens
17 WASL 8976
Far Western Homo sapiens
Affinity Capture-Western Homo sapiens
View the network image/svg+xml
 Pathways in which CTTN is involved
PathwayEvidenceSource
RHO GTPases activate PAKs TAS Reactome





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