Gene description for TOP2B
Gene name topoisomerase (DNA) II beta 180kDa
Gene symbol TOP2B
Other names/aliases TOPIIB
top2beta
Species Homo sapiens
 Database cross references - TOP2B
ExoCarta ExoCarta_7155
Entrez Gene 7155
HGNC 11990
MIM 126431
UniProt Q02880  
 TOP2B identified in exosomes derived from the following tissue/cell type
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Colorectal cancer cells 23161513    
Neuroblastoma cells 25944692    
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
Thymus 23844026    
 Gene ontology annotations for TOP2B
Molecular Function
    ATP binding GO:0005524 IEA
    DNA topoisomerase type II (ATP-hydrolyzing) activity GO:0003918 IDA
    enzyme binding GO:0019899 IPI
    histone deacetylase binding GO:0042826 IPI
    metal ion binding GO:0046872 IEA
    protein heterodimerization activity GO:0046982 IPI
    DNA binding, bending GO:0008301 IEA
    chromatin binding GO:0003682 IDA
    protein C-terminus binding GO:0008022 IPI
    protein kinase C binding GO:0005080 IPI
Biological Process
    DNA topological change GO:0006265 IDA
    forebrain development GO:0030900 IEA
    resolution of meiotic recombination intermediates GO:0000712 IBA
    DNA unwinding involved in DNA replication GO:0006268 IBA
    axonogenesis GO:0007409 IEA
    sister chromatid segregation GO:0000819 IBA
    neuron migration GO:0001764 IEA
    mitotic DNA integrity checkpoint GO:0044774 IBA
Subcellular Localization
    cytoplasm GO:0005737 IDA
    DNA topoisomerase complex (ATP-hydrolyzing) GO:0009330 IBA
    nucleolus GO:0005730 IDA
    heterochromatin GO:0000792 IDA
    cytosol GO:0005829 IDA
    nucleoid GO:0009295 IBA
    nucleus GO:0005634 IDA
    nucleoplasm GO:0005654 IDA
 Experiment description of studies that identified TOP2B in exosomes
1
Experiment ID 207
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP70
EV Cytosolic markers
FLOT1
EV Membrane markers
VDAC
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ.
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name DKO-1
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 208
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP70
EV Cytosolic markers
FLOT1
EV Membrane markers
VDAC
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ.
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name Dks-8
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 209
ISEV standards
EV Biophysical techniques
TSG101|HSP70
EV Cytosolic markers
FLOT1
EV Membrane markers
VDAC
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23161513    
Organism Homo sapiens
Experiment description Proteomic analysis of exosomes from mutant KRAS colon cancer cells identifies intercellular transfer of mutant KRAS.
Authors Demory Beckler M, Higginbotham JN, Franklin JL, Ham AJ, Halvey PJ, Imasuen IE, Whitwell C, Li M, Liebler DC, Coffey RJ.
Journal name Mol Cell Proteomics
Publication year 2012
Sample Colorectal cancer cells
Sample name DLD-1
Isolation/purification methods Differential centrifugation
Filtration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
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
5
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
6
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
7
Experiment ID 217
ISEV standards
EM
EV Biophysical techniques
TSG101
EV Cytosolic markers
CD81|CD9|CD63
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23844026    
Organism Homo sapiens
Experiment description Characterization of human thymic exosomes.
Authors Skogberg G, Gudmundsdottir J, van der Post S, Sandstrom K, Bruhn S, Benson M, Mincheva-Nilsson L, Baranov V, Telemo E, Ekwall O.
Journal name PLoS One
Publication year 2013
Sample Thymus
Sample name Normal-Thymus
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for TOP2B
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 CSNK2B 1460
Invitro Homo sapiens
2 TOP2A 7153
Reconstituted Complex Homo sapiens
3 CD3E 916
Invivo Homo sapiens
Invitro Homo sapiens
4 HDAC2 3066
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
5 MTA2 9219
Affinity Capture-Western Homo sapiens
6 HDAC1 3065
Affinity Capture-Western Homo sapiens
Reconstituted Complex Homo sapiens
Reconstituted Complex Homo sapiens
Two-hybrid Homo sapiens
7 TOPBP1 11073
Two-hybrid Homo sapiens
8 BAZ1B 9031
Affinity Capture-MS Homo sapiens
Affinity Capture-Western Homo sapiens
9 TP53  
Invivo Homo sapiens
Invitro Homo sapiens
10 SUMO1 7341
Invivo Homo sapiens
Invitro Homo sapiens
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which TOP2B is involved
No pathways found





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