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
Entrez Gene 116547
UniProt P50115  
 S100a8 identified in exosomes derived from the following tissue/cell type
Adipocytes 25998041    
Reticulocytes 21828046    
Reticulocytes 21828046    
Reticulocytes 21828046    
 Gene ontology annotations for S100a8
Molecular Function
    microtubule binding GO:0008017 IEA
    arachidonic acid binding GO:0050544 IEA
    RAGE receptor binding GO:0050786 IEA
    molecular_function GO:0003674 ND
    antioxidant activity GO:0016209 IEA
    zinc ion binding GO:0008270 IEA
    Toll-like receptor 4 binding GO:0035662 IEA
    calcium ion binding GO:0005509 IEA
Biological Process
    activation of cysteine-type endopeptidase activity involved in apoptotic process GO:0006919 ISS
    acute inflammatory response GO:0002526 IEP
    response to lipopolysaccharide GO:0032496 IEP
    inflammatory response GO:0006954 NAS
    positive regulation of peptide secretion GO:0002793 ISO
    response to zinc ion GO:0010043 IEP
    peptidyl-cysteine S-nitrosylation GO:0018119 ISO
    chronic inflammatory response GO:0002544 IEP
    neutrophil chemotaxis GO:0030593 ISS
    neutrophil aggregation GO:0070488 ISS
    response to ethanol GO:0045471 IEP
    leukocyte migration involved in inflammatory response GO:0002523 ISS
    innate immune response GO:0045087 IEA
    autophagy GO:0006914 ISS
    wound healing GO:0042060 IEP
    positive regulation of intrinsic apoptotic signaling pathway GO:2001244 ISS
    positive regulation of inflammatory response GO:0050729 ISS
Subcellular Localization
    extracellular space GO:0005615 ISO
    plasma membrane GO:0005886 IEA
    cytoskeleton GO:0005856 IEA
    nucleus GO:0005634 ISO
    cytoplasm GO:0005737 IEA
    extracellular exosome GO:0070062 ISO
 Experiment description of studies that identified S100a8 in exosomes
1
Experiment ID 225
ISEV standards
EM
EV Biophysical techniques
GAPDH
EV Cytosolic markers
CD63
EV Membrane markers
EV Negative markers
NTA
EV 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
ISEV standards
EM
EV Biophysical techniques
HSC70|HSP90|TSG101
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP90|HSC70
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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
ISEV standards
EM
EV Biophysical techniques
TSG101|HSP90|HSC70
EV Cytosolic markers
MHCI
EV Membrane markers
EV Negative markers
EV 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.
 Pathways in which S100a8 is involved
No pathways found





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