Gene description for Erp44
Gene name endoplasmic reticulum protein 44
Gene symbol Erp44
Other names/aliases BWK4
Txndc4
Species Rattus norvegicus
 Database cross references - Erp44
ExoCarta ExoCarta_298066
Vesiclepedia VP_298066
Entrez Gene 298066
 Erp44 identified in sEVs derived from the following tissue/cell type
Pancreatic cancer cells 20124479    
Pancreatic cancer cells 20124479    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
 Gene ontology annotations for Erp44
Molecular Function
    protein disulfide isomerase activity GO:0003756 ISO
Biological Process
    protein folding GO:0006457 ISO
    response to unfolded protein GO:0006986 ISO
    glycoprotein metabolic process GO:0009100 ISO
    response to endoplasmic reticulum stress GO:0034976 ISO
Subcellular Localization
    endoplasmic reticulum lumen GO:0005788 ISO
    endoplasmic reticulum membrane GO:0005789 ISO
    endoplasmic reticulum-Golgi intermediate compartment GO:0005793 ISO
    cell surface GO:0009986 ISO
 Experiment description of studies that identified Erp44 in sEVs
1
Experiment ID 92
MISEV standards
EM
Biophysical techniques
HSP70|GAPDH|CD9|CD151
Enriched markers
Negative markers
Particle analysis
Identified molecule mrna
Identification method Microarray
PubMed ID 20124479    
Organism Rattus norvegicus
Experiment description Cell surface tetraspanin Tspan8 contributes to molecular pathways of exosome-induced endothelial cell activation.
Authors "Nazarenko I, Rana S, Baumann A, McAlear J, Hellwig A, Trendelenburg M, Lochnit G, Preissner KT, Zoller M."
Journal name CR
Publication year 2010
Sample Pancreatic cancer cells
Sample name AS
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.14-1.17 g/mL
Molecules identified in the study Protein
mRNA
Methods used in the study RT-PCR
Western blotting
RatRef-12 Microarray
FACS
Mass spectrometry [MALDI TOF]
2
Experiment ID 93
MISEV standards
EM
Biophysical techniques
HSP70|GAPDH|CD9|CD151
Enriched markers
Negative markers
Particle analysis
Identified molecule mrna
Identification method Microarray
PubMed ID 20124479    
Organism Rattus norvegicus
Experiment description Cell surface tetraspanin Tspan8 contributes to molecular pathways of exosome-induced endothelial cell activation.
Authors "Nazarenko I, Rana S, Baumann A, McAlear J, Hellwig A, Trendelenburg M, Lochnit G, Preissner KT, Zoller M."
Journal name CR
Publication year 2010
Sample Pancreatic cancer cells
Sample name AS-Tspan8
Isolation/purification methods Differential centrifugation
Sucrose density gradient
Flotation density 1.14-1.17 g/mL
Molecules identified in the study Protein
mRNA
Methods used in the study RT-PCR
Western blotting
3
Experiment ID 96
MISEV standards
EM
Biophysical techniques
TSG101|HSP90|HSC70|MHCI
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D2 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.16-1.21 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
4
Experiment ID 97
MISEV standards
EM
Biophysical techniques
TSG101|HSP90|HSC70|MHCI
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D4 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.16-1.21 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
5
Experiment ID 98
MISEV standards
EM
Biophysical techniques
TSG101|HSP90|HSC70|MHCI
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry [Orbitrap]
PubMed ID 21828046    
Organism Rattus norvegicus
Experiment description The proteo-lipidic composition of exosomes changes during reticulocyte maturation.
Authors "Carayon K, Chaoui K, Ronzier E, Lazar I, Bertrand-Michel J, Roques V, Balor S, Terce F, Lopez A, Salome L, Joly E."
Journal name JBC
Publication year 2011
Sample Reticulocytes
Sample name Reticulocytes - D7 Rep 2
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.25 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Mass spectrometry [QSTAR]
Mass spectrometry [Orbitrap]
Western blotting
 Protein-protein interactions for Erp44
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 Brdt  
Affinity Capture-MS Rattus norvegicus
View the network image/svg+xml
 Pathways in which Erp44 is involved
No pathways found





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