Gene description for Spn
Gene name sialophorin
Gene symbol Spn
Other names/aliases A630014B01Rik
Cd43
Galgp
Ly-48
Ly48
Species Mus musculus
 Database cross references - Spn
ExoCarta ExoCarta_20737
Entrez Gene 20737
UniProt P15702  
 Spn identified in exosomes derived from the following tissue/cell type
Macrophages 23658846    
Macrophages 23658846    
Macrophages 23658846    
Mast cells 17486113    
 Gene ontology annotations for Spn
Molecular Function
    protein binding GO:0005515 IPI
    protein domain specific binding GO:0019904 ISO
Biological Process
    negative regulation of T cell proliferation GO:0042130 IMP
    apoptotic signaling pathway GO:0097190 IDA
    negative regulation of T cell activation GO:0050868 IMP
    positive regulation of tumor necrosis factor biosynthetic process GO:0042535 ISO
    T cell costimulation GO:0031295 IDA
    regulation of defense response to virus GO:0050688 IMP
    negative regulation of cell adhesion GO:0007162 IMP
    defense response to bacterium GO:0042742 ISO
    negative thymic T cell selection GO:0045060 IMP
    positive regulation of T cell proliferation GO:0042102 IDA
    thymocyte aggregation GO:0071594 ISO
    response to protozoan GO:0001562 IDA
    regulation of immune response GO:0050776 IMP
    cell surface receptor signaling pathway GO:0007166 IDA
    positive regulation of protein phosphorylation GO:0001934 IGI
    negative regulation of type IV hypersensitivity GO:0001808 IMP
Subcellular Localization
    cleavage furrow GO:0032154 ISO
    external side of plasma membrane GO:0009897 IDA
    integral component of plasma membrane GO:0005887 IDA
    cell surface GO:0009986 ISO
    extracellular space GO:0005615 ISO
    microvillus GO:0005902 ISO
    uropod GO:0001931 IDA
    integral component of membrane GO:0016021 IEA
    membrane GO:0016020 ISO
    extracellular exosome GO:0070062 ISO
    basement membrane GO:0005604 IDA
 Experiment description of studies that identified Spn in exosomes
1
Experiment ID 214
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name Leishmania-infected-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
2
Experiment ID 215
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name LPS-treated-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
3
Experiment ID 216
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 23658846    
Organism Mus musculus
Experiment description Immunomodulatory impact of leishmania-induced macrophage exosomes: a comparative proteomic and functional analysis.
Authors Hassani K, Olivier M.
Journal name PLoS Negl Trop Dis
Publication year 2013
Sample Macrophages
Sample name Normal-Macrophage (J774A.1)
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Filtration
Protease inhibitors
Sucrose density gradient
Filtration
Ultracentrifugation
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
4
Experiment ID 15
ISEV standards
EM
EV Biophysical techniques
EV Cytosolic markers
CD63
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 17486113    
Organism Mus musculus
Homo sapiens
Experiment description Exosome-mediated transfer of mRNAs and microRNAs is a novel mechanism of genetic exchange between cells.
Authors Valadi H, Ekstrom K, Bossios A, Sjostrand M, Lee JJ, Lotvall JO
Journal name NCB
Publication year 2007
Sample Mast cells
Sample name MC9
Bone marrow-derived mast cells
HMC-1
Isolation/purification methods Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.11-1.21 g/mL
Molecules identified in the study Protein
mRNA
miRNA
Methods used in the study Mass spectrometry [MALDI TOF]
Western blotting
Microarray
miRCURY LNA Array
 Protein-protein interactions for Spn
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which Spn is involved
PathwayEvidenceSource
Basigin interactions IEA Reactome
Cell surface interactions at the vascular wall IEA Reactome





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