Gene description for KRT8
Gene name keratin 8, type II
Gene symbol KRT8
Other names/aliases CARD2
CK-8
CK8
CYK8
K2C8
K8
KO
Species Homo sapiens
 Database cross references - KRT8
ExoCarta ExoCarta_3856
Entrez Gene 3856
HGNC 6446
MIM 148060
UniProt P05787  
 KRT8 identified in exosomes derived from the following tissue/cell type
Bladder cancer cells 20224111    
Colorectal cancer cells 17956143    
Colorectal cancer cells 19837982    
Hepatocellular carcinoma cells 26054723    
Hepatocellular carcinoma cells 26054723    
Hepatocellular carcinoma cells 26054723    
Hepatocytes 26054723    
Mesenchymal stem cells Unpublished / Not applicable
Nasopharyngeal carcinoma cells 25857718    
Nasopharyngeal carcinoma cells 25857718    
Nasopharyngeal carcinoma cells 25857718    
Neuroblastoma cells 25944692    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Prostate cancer cells 22723089    
Prostate cancer cells 25844599    
Prostate cancer cells 25844599    
Saliva 19199708    
 Gene ontology annotations for KRT8
Molecular Function
    scaffold protein binding GO:0097110 IPI
    structural molecule activity GO:0005198 IEA
    protein complex binding GO:0032403 IEA
    protein binding GO:0005515 IPI
Biological Process
    response to hydrostatic pressure GO:0051599 IEA
    viral process GO:0016032 IEA
    cell differentiation involved in embryonic placenta development GO:0060706 IEA
    tumor necrosis factor-mediated signaling pathway GO:0033209 IEA
    extrinsic apoptotic signaling pathway GO:0097191 IEA
    sarcomere organization GO:0045214 IEA
    response to other organism GO:0051707 IEA
    hepatocyte apoptotic process GO:0097284 IEA
Subcellular Localization
    dystrophin-associated glycoprotein complex GO:0016010 IEA
    keratin filament GO:0045095 IEA
    Z disc GO:0030018 IEA
    extracellular exosome GO:0070062 IDA
    intermediate filament GO:0005882 IDA
    sarcolemma GO:0042383 IEA
    nuclear matrix GO:0016363 IEA
    intermediate filament cytoskeleton GO:0045111 IDA
    cytoplasm GO:0005737 IDA
    costamere GO:0043034 IEA
    nucleus GO:0005634 IDA
    nucleoplasm GO:0005654 IEA
    cell-cell junction GO:0005911 IEA
 Experiment description of studies that identified KRT8 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 21
ISEV standards
EM|IEM
EV Biophysical techniques
Alix|TSG101|HSP70
EV Cytosolic markers
CD63
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method
Mass spectrometry   
PubMed ID 19837982    
Organism Homo sapiens
Experiment description Proteomic and bioinformatic analysis of immunoaffinity-purified exosomes derived from the human colon tumor cell line LIM1215.
Authors Suresh Mathivanan, Justin W.E. Lim, Bow J. Tauro, Hong Ji, Robert L. Moritz and Richard J. Simpson
Journal name MCP
Publication year 2009
Sample Colorectal cancer cells
Sample name LIM1215
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.10-1.12 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [Orbitrap]
Western blotting
4
Experiment ID 234
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-C3
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
5
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
6
Experiment ID 236
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 MHCC97L
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
7
Experiment ID 237
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 Hepatocytes
Sample name MIHA
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
RNA Sequencing
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 219
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63|CD9
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25857718    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from nasopharyngeal carcinoma cell identifies intercellular transfer of angiogenic proteins
Authors Chan YK, Zhang H, Liu P, Tsao GS, Li Lung M, Mak NK, Ngok-Shun Wong R, Ying-Kit Yue P
Journal name Int J Cancer
Publication year 2015
Sample Nasopharyngeal carcinoma cells
Sample name C666-1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.17-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
10
Experiment ID 220
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63|CD9
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25857718    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from nasopharyngeal carcinoma cell identifies intercellular transfer of angiogenic proteins
Authors Chan YK, Zhang H, Liu P, Tsao GS, Li Lung M, Mak NK, Ngok-Shun Wong R, Ying-Kit Yue P
Journal name Int J Cancer
Publication year 2015
Sample Nasopharyngeal carcinoma cells
Sample name NP69
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.17-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
11
Experiment ID 221
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63|CD9
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25857718    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from nasopharyngeal carcinoma cell identifies intercellular transfer of angiogenic proteins
Authors Chan YK, Zhang H, Liu P, Tsao GS, Li Lung M, Mak NK, Ngok-Shun Wong R, Ying-Kit Yue P
Journal name Int J Cancer
Publication year 2015
Sample Nasopharyngeal carcinoma cells
Sample name NP460
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.17-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
12
Experiment ID 224
ISEV standards
EM|AFM
EV Biophysical techniques
Alix|TSG101
EV Cytosolic markers
CD63|CD81
EV Membrane markers
GOLGA2
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25944692    
Organism Homo sapiens
Experiment description Proteogenomic analysis reveals exosomes are more oncogenic than ectosomes
Authors Keerthikumar S, Gangoda L, Liem M, Fonseka P, Atukorala I, Ozcitti C, Mechler A, Adda CG, Ang CS, Mathivanan S
Journal name Oncotarget
Publication year 2015
Sample Neuroblastoma cells
Sample name SH-SY5Y
Isolation/purification methods Differential centrifugation
Ultracentrifugation
OptiPrep density gradient
Flotation density 1.10 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
13
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
14
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
15
Experiment ID 139
ISEV standards
EM
EV Biophysical techniques
HSP70|HSP90|RAB5
EV Cytosolic markers
LAMP2|CD9
EV Membrane markers
HSP90B1
EV Negative markers
EV 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 DU145 - Rep 3
Isolation/purification methods Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
16
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
17
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
18
Experiment ID 66
ISEV standards
IEM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
CD63|CD81
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19199708    
Organism Homo sapiens
Experiment description Proteomic analysis of human parotid gland exosomes by multidimensional protein identification technology (MudPIT).
Authors Gonzalez-Begne M, Lu B, Han X, Hagen FK, Hand AR, Melvin JE, Yates JR
Journal name JPR
Publication year 2009
Sample Saliva
Sample name Saliva
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
Immunoelectron Microscopy
 Protein-protein interactions for KRT8
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 PNN 5411
Invitro Homo sapiens
Two-hybrid Homo sapiens
2 FGFR3 2261
Two-hybrid Homo sapiens
3 ANXA1 301
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
4 PKP1  
Invitro Homo sapiens
5 HSPA5 3309
Invivo Homo sapiens
6 PLAT 5327
Affinity Capture-MS Homo sapiens
Reconstituted Complex Homo sapiens
7 CLN5  
Affinity Capture-MS Homo sapiens
8 GRB2 2885
Affinity Capture-MS Homo sapiens
9 KRT18 3875
Invivo Homo sapiens
10 HSPA4L 22824
Affinity Capture-MS Homo sapiens
11 CASP3 836
Affinity Capture-MS Homo sapiens
12 BYSL  
Invitro Homo sapiens
Two-hybrid Homo sapiens
Affinity Capture-MS Homo sapiens
View the network image/svg+xml
 Pathways in which KRT8 is involved
No pathways found





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