Gene description for Sppl2b
Gene name signal peptide peptidase-like 2B
Gene symbol Sppl2b
Other names/aliases RGD1308556
Species Rattus norvegicus
 Database cross references - Sppl2b
ExoCarta ExoCarta_362828
Vesiclepedia VP_362828
Entrez Gene 362828
UniProt Q5PQL3  
 Sppl2b identified in sEVs derived from the following tissue/cell type
Reticulocytes 21828046    
 Gene ontology annotations for Sppl2b
Molecular Function
    aspartic endopeptidase activity, intramembrane cleaving GO:0042500 IBA
    aspartic endopeptidase activity, intramembrane cleaving GO:0042500 IEA
    aspartic endopeptidase activity, intramembrane cleaving GO:0042500 ISO
    aspartic endopeptidase activity, intramembrane cleaving GO:0042500 ISO
    aspartic endopeptidase activity, intramembrane cleaving GO:0042500 ISS
    protein homodimerization activity GO:0042803 IEA
    protein homodimerization activity GO:0042803 ISO
    protein homodimerization activity GO:0042803 ISS
Biological Process
    membrane protein ectodomain proteolysis GO:0006509 IEA
    membrane protein ectodomain proteolysis GO:0006509 ISO
    membrane protein ectodomain proteolysis GO:0006509 ISS
    membrane protein intracellular domain proteolysis GO:0031293 IEA
    membrane protein intracellular domain proteolysis GO:0031293 ISO
    membrane protein intracellular domain proteolysis GO:0031293 ISS
    membrane protein proteolysis GO:0033619 IBA
    membrane protein proteolysis GO:0033619 ISO
    membrane protein proteolysis GO:0033619 ISS
    regulation of immune response GO:0050776 IEA
    regulation of immune response GO:0050776 ISO
    regulation of immune response GO:0050776 ISS
Subcellular Localization
    Golgi membrane GO:0000139 IEA
    nucleoplasm GO:0005654 IEA
    nucleoplasm GO:0005654 ISO
    lysosomal membrane GO:0005765 IBA
    lysosomal membrane GO:0005765 IEA
    lysosomal membrane GO:0005765 ISO
    lysosomal membrane GO:0005765 ISS
    centrosome GO:0005813 IEA
    centrosome GO:0005813 ISO
    plasma membrane GO:0005886 IEA
    plasma membrane GO:0005886 ISO
    plasma membrane GO:0005886 ISS
    endosome membrane GO:0010008 IEA
    endosome membrane GO:0010008 ISO
    endosome membrane GO:0010008 ISS
    endomembrane system GO:0012505 IEA
    actin cytoskeleton GO:0015629 IEA
    actin cytoskeleton GO:0015629 ISO
    membrane GO:0016020 ISO
    membrane GO:0016020 ISS
    Golgi-associated vesicle membrane GO:0030660 IBA
    Golgi-associated vesicle membrane GO:0030660 IEA
    Golgi-associated vesicle membrane GO:0030660 ISO
    Golgi-associated vesicle membrane GO:0030660 ISS
    organelle membrane GO:0031090 IEA
    lumenal side of endoplasmic reticulum membrane GO:0098553 IBA
    lumenal side of endoplasmic reticulum membrane GO:0098553 IEA
    lumenal side of endoplasmic reticulum membrane GO:0098553 ISO
    lumenal side of endoplasmic reticulum membrane GO:0098553 ISS
    cytoplasmic side of endoplasmic reticulum membrane GO:0098554 IBA
    cytoplasmic side of endoplasmic reticulum membrane GO:0098554 IEA
    cytoplasmic side of endoplasmic reticulum membrane GO:0098554 ISO
    cytoplasmic side of endoplasmic reticulum membrane GO:0098554 ISS
 Experiment description of studies that identified Sppl2b in sEVs
1
Experiment ID 90
MISEV standards
EM
Biophysical techniques
HSC70|HSP90|TSG101|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 1
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
 Protein-protein interactions for Sppl2b
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which Sppl2b is involved
PathwayEvidenceSource
Death Receptor Signaling IEA Reactome
Regulation of TNFR1 signaling IEA Reactome
Signal Transduction IEA Reactome
TNF signaling IEA Reactome





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