Gene description for Eif2b1
Gene name eukaryotic translation initiation factor 2B, subunit 1 alpha
Gene symbol Eif2b1
Other names/aliases eIF-2a
Species Rattus norvegicus
 Database cross references - Eif2b1
ExoCarta ExoCarta_64514
Vesiclepedia VP_64514
Entrez Gene 64514
UniProt Q64270  
 Eif2b1 identified in sEVs derived from the following tissue/cell type
Reticulocytes 21828046    
 Gene ontology annotations for Eif2b1
Molecular Function
    translation initiation factor activity GO:0003743 IBA
    translation initiation factor activity GO:0003743 IDA
    translation initiation factor activity GO:0003743 IEA
    translation initiation factor activity GO:0003743 ISO
    translation initiation factor activity GO:0003743 ISS
    guanyl-nucleotide exchange factor activity GO:0005085 IBA
    guanyl-nucleotide exchange factor activity GO:0005085 IDA
    guanyl-nucleotide exchange factor activity GO:0005085 IEA
    guanyl-nucleotide exchange factor activity GO:0005085 ISO
    guanyl-nucleotide exchange factor activity GO:0005085 ISO
    guanyl-nucleotide exchange factor activity GO:0005085 ISS
    GTP binding GO:0005525 IMP
    GDP binding GO:0019003 IDA
    identical protein binding GO:0042802 IEA
    identical protein binding GO:0042802 ISO
Biological Process
    cytoplasmic translational initiation GO:0002183 IEA
    cytoplasmic translational initiation GO:0002183 ISO
    cytoplasmic translational initiation GO:0002183 ISS
    translation GO:0006412 IDA
    translational initiation GO:0006413 IBA
    translational initiation GO:0006413 IDA
    translational initiation GO:0006413 IEA
    translational initiation GO:0006413 ISO
    translational initiation GO:0006413 ISS
    response to heat GO:0009408 IDA
    response to glucose GO:0009749 IDA
    oligodendrocyte development GO:0014003 IEA
    oligodendrocyte development GO:0014003 ISO
    oligodendrocyte development GO:0014003 ISS
    response to peptide hormone GO:0043434 IDA
    T cell receptor signaling pathway GO:0050852 IEA
    T cell receptor signaling pathway GO:0050852 ISO
    T cell receptor signaling pathway GO:0050852 ISS
    negative regulation of guanyl-nucleotide exchange factor activity GO:1905098 IDA
    response to amino acid starvation GO:1990928 IDA
Subcellular Localization
    cytoplasm GO:0005737 ISO
    cytoplasm GO:0005737 ISS
    cytosol GO:0005829 IEA
    eukaryotic translation initiation factor 2 complex GO:0005850 IDA
    eukaryotic translation initiation factor 2B complex GO:0005851 IBA
    eukaryotic translation initiation factor 2B complex GO:0005851 IDA
    eukaryotic translation initiation factor 2B complex GO:0005851 IEA
    eukaryotic translation initiation factor 2B complex GO:0005851 ISO
    eukaryotic translation initiation factor 2B complex GO:0005851 ISS
    plasma membrane GO:0005886 IEA
    plasma membrane GO:0005886 ISO
    membrane GO:0016020 ISO
 Experiment description of studies that identified Eif2b1 in sEVs
1
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 Eif2b1
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.



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