Gene description for PLK1
Gene name polo-like kinase 1
Gene symbol PLK1
Other names/aliases PLK
STPK13
Species Homo sapiens
 Database cross references - PLK1
ExoCarta ExoCarta_5347
Vesiclepedia VP_5347
Entrez Gene 5347
HGNC 9077
MIM 602098
UniProt P53350  
 PLK1 identified in exosomes derived from the following tissue/cell type
Gastric cancer cells 33991177    
Gastric cancer cells 33991177    
Gastric cancer cells 33991177    
Hepatocellular carcinoma cells 26054723    
Mesenchymal stem cells 36408942    
 Gene ontology annotations for PLK1
Molecular Function
    protein serine/threonine kinase activity GO:0004674 IMP
    microtubule binding GO:0008017 IDA
    protein binding GO:0005515 IPI
    protein kinase activity GO:0004672 IDA
    protein kinase binding GO:0019901 IPI
    kinase activity GO:0016301 TAS
    ATP binding GO:0005524 IEA
    anaphase-promoting complex binding GO:0010997 IPI
Biological Process
    microtubule bundle formation GO:0001578 IDA
    activation of APC-Cdc20 complex activity GO:0007092 IDA
    mitotic cell cycle GO:0000278 TAS
    anaphase-promoting complex-dependent proteasomal ubiquitin-dependent protein catabolic process GO:0031145 TAS
    mitotic nuclear envelope disassembly GO:0007077 TAS
    mitotic nuclear division GO:0007067 IMP
    negative regulation of transcription from RNA polymerase II promoter GO:0000122 IMP
    positive regulation of ubiquitin-protein ligase activity involved in regulation of mitotic cell cycle transition GO:0051437 TAS
    regulation of ubiquitin-protein ligase activity involved in mitotic cell cycle GO:0051439 TAS
    regulation of mitotic metaphase/anaphase transition GO:0030071 IMP
    cell proliferation GO:0008283 TAS
    cytokinesis GO:0000910 IMP
    mitotic spindle assembly checkpoint GO:0007094 IMP
    protein destabilization GO:0031648 IDA
    negative regulation of apoptotic process GO:0043066 IMP
    establishment of protein localization GO:0045184 IMP
    mitotic sister chromatid segregation GO:0000070 IMP
    response to antibiotic GO:0046677 IEA
    regulation of mitotic cell cycle GO:0007346 IMP
    protein phosphorylation GO:0006468 IDA
    peptidyl-serine phosphorylation GO:0018105 IDA
    polar body extrusion after meiotic divisions GO:0040038 IEA
    regulation of protein binding GO:0043393 IMP
    G2/M transition of mitotic cell cycle GO:0000086 TAS
    negative regulation of cyclin-dependent protein serine/threonine kinase activity GO:0045736 IMP
    protein ubiquitination GO:0016567 IDA
    centrosome organization GO:0051297 IMP
    regulation of cell cycle GO:0051726 TAS
    metaphase/anaphase transition of mitotic cell cycle GO:0007091 TAS
    positive regulation of peptidyl-threonine phosphorylation GO:0010800 IMP
    regulation of mitotic spindle assembly GO:1901673 IDA
    mitotic cytokinesis GO:0000281 IDA
    small GTPase mediated signal transduction GO:0007264 TAS
    positive regulation of ubiquitin-protein transferase activity GO:0051443 IMP
    organelle organization GO:0006996 TAS
    positive regulation of proteasomal ubiquitin-dependent protein catabolic process GO:0032436 IMP
    positive regulation of proteolysis GO:0045862 IDA
    protein localization to chromatin GO:0071168 IDA
    G2 DNA damage checkpoint GO:0031572 IDA
Subcellular Localization
    spindle midzone GO:0051233 IDA
    centrosome GO:0005813 IDA
    midbody GO:0030496 IDA
    nucleoplasm GO:0005654 TAS
    microtubule cytoskeleton GO:0015630 IDA
    cytosol GO:0005829 TAS
    spindle microtubule GO:0005876 IDA
    nucleus GO:0005634 IDA
    kinetochore GO:0000776 IDA
    spindle GO:0005819 IDA
    spindle pole GO:0000922 IDA
    nucleolus GO:0005730 IDA
    condensed nuclear chromosome outer kinetochore GO:0000942 IDA
    cytoplasm GO:0005737 IDA
 Experiment description of studies that identified PLK1 in exosomes
1
Experiment ID 363
MISEV standards
EV Biophysical techniques
TSG101|GAPDH|AQP1|CD151|CD81|CD82|CD9|EPCAM|FLOT1|FLOT2|ICAM1|ITGA2B|LAMP2|RAB35|RAB5A|RAB5B|SDCBP|TFRC|UCHL1
EV Enriched markers
DCLK1
EV Negative markers
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33991177    
Organism Homo sapiens
Experiment description Cancer stem cell marker DCLK1 reprograms small extracellular vesicles toward migratory phenotype in gastric cancer cells
Authors Carli ALE, Afshar-Sterle S, Rai A, Fang H, O'Keefe R, Tse J, Ferguson FM, Gray NS, Ernst M, Greening DW, Buchert M.
Journal name Proteomics
Publication year 2021
Sample Gastric cancer cells
Sample name MKN1 - 100K pellet
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
2
Experiment ID 364
MISEV standards
EV Biophysical techniques
TSG101|GAPDH|AQP1|CD151|CD81|CD82|CD9|EPCAM|FLOT1|FLOT2|ICAM1|ITGA2B|LAMP2|RAB35|RAB5A|RAB5B|SDCBP|TFRC|UCHL1
EV Enriched markers
DCLK1
EV Negative markers
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33991177    
Organism Homo sapiens
Experiment description Cancer stem cell marker DCLK1 reprograms small extracellular vesicles toward migratory phenotype in gastric cancer cells
Authors Carli ALE, Afshar-Sterle S, Rai A, Fang H, O'Keefe R, Tse J, Ferguson FM, Gray NS, Ernst M, Greening DW, Buchert M.
Journal name Proteomics
Publication year 2021
Sample Gastric cancer cells
Sample name MKN1 - 100K pellet
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
3
Experiment ID 365
MISEV standards
EV Biophysical techniques
TSG101|GAPDH|AQP1|CD151|CD81|CD82|CD9|EPCAM|FLOT1|FLOT2|ICAM1|ITGA2B|LAMP2|RAB35|RAB5A|RAB5B|SDCBP|TFRC|UCHL1
EV Enriched markers
DCLK1
EV Negative markers
NTA
EV Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33991177    
Organism Homo sapiens
Experiment description Cancer stem cell marker DCLK1 reprograms small extracellular vesicles toward migratory phenotype in gastric cancer cells
Authors Carli ALE, Afshar-Sterle S, Rai A, Fang H, O'Keefe R, Tse J, Ferguson FM, Gray NS, Ernst M, Greening DW, Buchert M.
Journal name Proteomics
Publication year 2021
Sample Gastric cancer cells
Sample name MKN1 - 100K pellet
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Western blotting
Mass spectrometry
4
Experiment ID 235
MISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Enriched 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
5
Experiment ID 488
MISEV standards
EM
EV Biophysical techniques
CD9|CD81|CD63|GAPDH|SDCBP|LAMP1|TFRC|UCHL1|FLOT2|LAMP2|FLOT1|ICAM1|RAB5B|CD151|RAB35|TSG101|RAB5A|CD82
EV Enriched markers
CANX
EV Negative markers
NTA
EV 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 PLK1
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 PSMA6 5687
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
2 PSMB2 5690
Invivo Homo sapiens
3 RECQL5  
Two-hybrid Homo sapiens
4 PSMA1 5682
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
5 PSMA3 5684
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
6 TUBB2A 7280
Affinity Capture-MS Homo sapiens
7 PSMB3 5691
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
8 TSC2 7249
Affinity Capture-Western Homo sapiens
9 TUBG1 7283
Affinity Capture-MS Homo sapiens
10 PSMA4 5685
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
11 PIN1 5300
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
Far Western Homo sapiens
Affinity Capture-Western Homo sapiens
12 PSMB7 5695
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
13 PSMB4 5692
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
14 CHEK2  
Affinity Capture-Western Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
Biochemical Activity Homo sapiens
15 TSC1 7248
Affinity Capture-Western Homo sapiens
Affinity Capture-Western Homo sapiens
16 GORASP1 64689
Invitro Homo sapiens
Invivo Homo sapiens
Two-hybrid Homo sapiens
Affinity Capture-MS Homo sapiens
17 TUBA4A 7277
Affinity Capture-MS Homo sapiens
18 CDC25C  
Affinity Capture-MS Homo sapiens
Biochemical Activity Homo sapiens
19 BRCA2 675
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
20 MAGED1 9500
Two-hybrid Homo sapiens
21 PSMA5 5686
Invivo Homo sapiens
22 NUDC 10726
Reconstituted Complex Homo sapiens
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
Biochemical Activity Homo sapiens
23 PSMA7 5688
Invivo Homo sapiens
24 DNAJB9 4189
Two-hybrid Homo sapiens
25 DCTN1 1639
Affinity Capture-Western Homo sapiens
26 PSMB5 5693
Invivo Homo sapiens
27 PITPNM1 9600
Affinity Capture-MS Homo sapiens
28 PSMB6 5694
Invivo Homo sapiens
29 GET4 51608
Two-hybrid Homo sapiens
30 PSMB1 5689
Invivo Homo sapiens
Affinity Capture-MS Homo sapiens
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