Gene description for S100a8
Gene name S100 calcium binding protein A8
Gene symbol S100a8
Other names/aliases Mrp8
Species Rattus norvegicus
 Database cross references - S100a8
ExoCarta ExoCarta_116547
Vesiclepedia VP_116547
Entrez Gene 116547
UniProt P50115  
 S100a8 identified in sEVs derived from the following tissue/cell type
Adipocytes 25998041    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
 Gene ontology annotations for S100a8
Molecular Function
    calcium ion binding GO:0005509 IBA
    antioxidant activity GO:0016209 IEA
    calcium-dependent protein binding GO:0048306 IBA
Biological Process
    leukocyte migration involved in inflammatory response GO:0002523 IBA
    leukocyte migration involved in inflammatory response GO:0002523 ISO
    leukocyte migration involved in inflammatory response GO:0002523 ISS
    chronic inflammatory response GO:0002544 IEP
    peptide secretion GO:0002790 ISO
    positive regulation of peptide secretion GO:0002793 ISO
    autophagy GO:0006914 ISO
    autophagy GO:0006914 ISS
    apoptotic process GO:0006915 IEA
    response to zinc ion GO:0010043 IEP
    astrocyte development GO:0014002 ISO
    peptidyl-cysteine S-nitrosylation GO:0018119 ISO
    neutrophil chemotaxis GO:0030593 IBA
    neutrophil chemotaxis GO:0030593 ISO
    neutrophil chemotaxis GO:0030593 ISS
    response to lipopolysaccharide GO:0032496 IBA
    response to lipopolysaccharide GO:0032496 IEP
    autocrine signaling GO:0035425 IGI
    endothelial cell migration GO:0043542 IBA
    innate immune response GO:0045087 IEA
    response to ethanol GO:0045471 IEP
    positive regulation of inflammatory response GO:0050729 ISO
    positive regulation of inflammatory response GO:0050729 ISS
    neutrophil aggregation GO:0070488 IBA
    neutrophil aggregation GO:0070488 ISO
    neutrophil aggregation GO:0070488 ISS
    cellular oxidant detoxification GO:0098869 IEA
    positive regulation of cysteine-type endopeptidase activity GO:2001056 ISO
    positive regulation of cysteine-type endopeptidase activity GO:2001056 ISS
    positive regulation of intrinsic apoptotic signaling pathway GO:2001244 ISO
    positive regulation of intrinsic apoptotic signaling pathway GO:2001244 ISS
Subcellular Localization
    extracellular space GO:0005615 IDA
    extracellular space GO:0005615 ISO
    cytoplasm GO:0005737 IBA
    cytosol GO:0005829 IEA
    cytosol GO:0005829 ISO
    plasma membrane GO:0005886 IEA
    intermediate filament cytoskeleton GO:0045111 IEA
    intermediate filament cytoskeleton GO:0045111 ISO
    calprotectin complex GO:1990660 ISO
 Experiment description of studies that identified S100a8 in sEVs
1
Experiment ID 225
MISEV standards
✔
EM
Biophysical techniques
✔
GAPDH|CD63
Enriched markers
✘ Negative markers
✔
NTA
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25998041    
Organism Rattus norvegicus
Experiment description Proteomic Analysis of Extracellular Vesicles Released by Adipocytes of Otsuka Long-Evans Tokushima Fatty (OLETF) Rats.
Authors "Lee JE, Moon PG, Lee IK, Baek MC"
Journal name Protein J
Publication year 2015
Sample Adipocytes
Sample name Adipocytes
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
2
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
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
 Protein-protein interactions for S100a8
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.



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