Gene description for SI
Gene name sucrase-isomaltase (alpha-glucosidase)
Gene symbol SI
Other names/aliases -
Species Homo sapiens
 Database cross references - SI
ExoCarta ExoCarta_6476
Vesiclepedia VP_6476
Entrez Gene 6476
HGNC 10856
MIM 609845
UniProt P14410  
 SI identified in sEVs derived from the following tissue/cell type
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Colorectal cancer cells 25890246    
Urine 22418980    
Urine 22418980    
 Gene ontology annotations for SI
Molecular Function
    alpha-1,4-glucosidase activity GO:0004558 IBA
    oligo-1,6-glucosidase activity GO:0004574 IDA
    sucrose alpha-glucosidase activity GO:0004575 TAS
    protein binding GO:0005515 IPI
    carbohydrate binding GO:0030246 IEA
Biological Process
    sucrose catabolic process GO:0005987 IDA
    polysaccharide digestion GO:0044245 TAS
Subcellular Localization
    Golgi apparatus GO:0005794 TAS
    plasma membrane GO:0005886 TAS
    brush border GO:0005903 TAS
    apical plasma membrane GO:0016324 IEA
    extracellular exosome GO:0070062 HDA
 Experiment description of studies that identified SI in sEVs
1
Experiment ID 282
MISEV standards
CEM
Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
Enriched markers
Negative markers
DLS
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors "Xu R, Greening DW, Rai A, Ji H, Simpson RJ."
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Ultracentrifugation - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
2
Experiment ID 283
MISEV standards
CEM
Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
Enriched markers
Negative markers
DLS
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors "Xu R, Greening DW, Rai A, Ji H, Simpson RJ."
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Ultracentrifugation - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
3
Experiment ID 285
MISEV standards
CEM
Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
Enriched markers
Negative markers
DLS
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors "Xu R, Greening DW, Rai A, Ji H, Simpson RJ."
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Sequential centrifugal ultrafiltration - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Sequential centrifugal ultrafiltration
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
4
Experiment ID 286
MISEV standards
CEM
Biophysical techniques
Alix|TSG101|CD63|CD81|EpCAM
Enriched markers
Negative markers
DLS
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25890246    
Organism Homo sapiens
Experiment description Highly-purified exosomes and shed microvesicles isolated from the human colon cancer cell line LIM1863 by sequential centrifugal ultrafiltration are biochemically and functionally distinct.
Authors "Xu R, Greening DW, Rai A, Ji H, Simpson RJ."
Journal name Methods
Publication year 2015
Sample Colorectal cancer cells
Sample name LIM1863 - Sequential centrifugal ultrafiltration - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Sequential centrifugal ultrafiltration
Centrifugal concentration
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
Western blotting
5
Experiment ID 196
MISEV standards
EM
Biophysical techniques
Alix|TSG101|HSP70|CD9
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal high density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
6
Experiment ID 197
MISEV standards
EM
Biophysical techniques
Alix|TSG101|HSP70|CD9
Enriched markers
Negative markers
Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 22418980    
Organism Homo sapiens
Experiment description A multiplex quantitative proteomics strategy for protein biomarker studies in urinary exosomes.
Authors "Raj DA, Fiume I, Capasso G, Pocsfalvi G."
Journal name Kidney Int
Publication year 2012
Sample Urine
Sample name Urine - Normal low density
Isolation/purification methods Differential centrifugation
Sucrose cushion
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
 Protein-protein interactions for SI
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 ADRB2  
Two-hybrid Homo sapiens
2 EFNA3  
Affinity Capture-MS Homo sapiens
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