Gene description for TMEM55B
Gene name transmembrane protein 55B
Gene symbol TMEM55B
Other names/aliases C14orf9
Species Homo sapiens
 Database cross references - TMEM55B
ExoCarta ExoCarta_90809
Entrez Gene 90809
HGNC 19299
MIM 609865
UniProt Q86T03  
 TMEM55B identified in exosomes derived from the following tissue/cell type
Ovarian cancer cells 23333927    
Ovarian cancer cells 23333927    
 Gene ontology annotations for TMEM55B
Molecular Function
    hydrolase activity GO:0016787 IEA
Biological Process
    metabolic process GO:0008152 IEA
Subcellular Localization
    integral component of membrane GO:0016021 IEA
    lysosomal membrane GO:0005765 IEA
    late endosome membrane GO:0031902 IEA
 Experiment description of studies that identified TMEM55B in exosomes
1
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
2
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
 Protein-protein interactions for TMEM55B
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which TMEM55B is involved
No pathways found





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