Gene description for USP22
Gene name ubiquitin specific peptidase 22
Gene symbol USP22
Other names/aliases USP3L
Species Homo sapiens
 Database cross references - USP22
ExoCarta ExoCarta_23326
Entrez Gene 23326
HGNC 12621
MIM 612116
UniProt Q9UPT9  
 USP22 identified in exosomes derived from the following tissue/cell type
Hepatocellular carcinoma cells 26054723    
Hepatocellular carcinoma cells 26054723    
Hepatocytes 26054723    
 Gene ontology annotations for USP22
Molecular Function
    zinc ion binding GO:0008270 IEA
    cysteine-type endopeptidase activity GO:0004197 IBA
    protein binding GO:0005515 IPI
    ligand-dependent nuclear receptor transcription coactivator activity GO:0030374 IMP
    H4 histone acetyltransferase activity GO:0010485 IDA
    transcription coactivator activity GO:0003713 IDA
    ubiquitin-specific protease activity GO:0004843 IMP
    enzyme binding GO:0019899 IPI
Biological Process
    histone ubiquitination GO:0016574 IDA
    chromatin organization GO:0006325 TAS
    histone deubiquitination GO:0016578 IDA
    embryo development GO:0009790 NAS
    transcription, DNA-templated GO:0006351 IEA
    positive regulation of mitotic cell cycle GO:0045931 IMP
    protein deubiquitination GO:0016579 IDA
    proteasome-mediated ubiquitin-dependent protein catabolic process GO:0043161 IBA
    positive regulation of transcription, DNA-templated GO:0045893 IMP
    cell cycle GO:0007049 IEA
    regulation of proteasomal protein catabolic process GO:0061136 IBA
    histone H4 acetylation GO:0043967 IDA
Subcellular Localization
    SAGA-type complex GO:0070461 IDA
    SAGA complex GO:0000124 IDA
 Experiment description of studies that identified USP22 in exosomes
1
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
2
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
3
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
 Protein-protein interactions for USP22
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 SCFD1 23256
Two-hybrid Homo sapiens
2 HEXA 3073
Two-hybrid Homo sapiens
3 PSME1 5720
Two-hybrid Homo sapiens
4 MRPL10  
Two-hybrid Homo sapiens
View the network image/svg+xml
 Pathways in which USP22 is involved
PathwayEvidenceSource
HATs acetylate histones TAS Reactome





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