Gene description for H3F3B
Gene name H3 histone, family 3B (H3.3B)
Gene symbol H3F3B
Other names/aliases H3.3B
Species Homo sapiens
 Database cross references - H3F3B
ExoCarta ExoCarta_3021
Entrez Gene 3021
HGNC 4765
MIM 601058
UniProt P84243  
 H3F3B identified in exosomes derived from the following tissue/cell type
Bladder cancer cells 20224111    
Neuroblastoma cells 25944692    
Prostate cancer cells 22723089    
Prostate cancer cells 22723089    
Prostate cancer cells 22723089    
Prostate cancer cells 22723089    
 Gene ontology annotations for H3F3B
Molecular Function
    RNA polymerase II distal enhancer sequence-specific DNA binding GO:0000980 IDA
    protein binding GO:0005515 IPI
    nucleosomal DNA binding GO:0031492 IDA
    RNA polymerase II core promoter sequence-specific DNA binding GO:0000979 IDA
    protein heterodimerization activity GO:0046982 IEA
    histone binding GO:0042393 IPI
Biological Process
    nucleosome assembly GO:0006334 IMP
    regulation of gene expression, epigenetic GO:0040029 TAS
    small GTPase mediated signal transduction GO:0007264 TAS
    DNA replication-independent nucleosome assembly GO:0006336 IDA
    DNA methylation on cytosine GO:0032776 TAS
    blood coagulation GO:0007596 TAS
    negative regulation of gene expression, epigenetic GO:0045814 TAS
    positive regulation of cell growth GO:0030307 IMP
    gene expression GO:0010467 TAS
    chromatin silencing at rDNA GO:0000183 TAS
Subcellular Localization
    nucleoplasm GO:0005654 TAS
    extracellular exosome GO:0070062 IDA
    protein complex GO:0043234 IDA
    nucleus GO:0005634 IDA
    extracellular region GO:0005576 TAS
    nucleosome GO:0000786 IDA
    nuclear chromosome GO:0000228 IDA
    nuclear nucleosome GO:0000788 IDA
 Experiment description of studies that identified H3F3B 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 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
3
Experiment ID 138
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 2
Isolation/purification methods Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
4
Experiment ID 143
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 LNCaP - Rep 3
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 144
ISEV standards
✔
EM
EV Biophysical techniques
✔
HSP70|HSP90|RAB5
EV Cytosolic markers
✔
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 C4-2 - Rep 2
Isolation/purification methods Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
6
Experiment ID 145
ISEV standards
✔
EM
EV Biophysical techniques
✔
HSP70|HSP90|RAB5
EV Cytosolic markers
✔
CD10
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 C4-2 - Rep 3
Isolation/purification methods Sucrose density gradient
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [QTOF]
 Protein-protein interactions for H3F3B
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 HIRA  
Invitro Homo sapiens
Two-hybrid Homo sapiens
2 EHMT2 10919
Two-hybrid Homo sapiens
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