Gene description for Apoa2
Gene name apolipoprotein A-II
Gene symbol Apoa2
Other names/aliases Alp-2
Apo-AII
ApoA-II
ApoAII
Apoa-2
Hdl-1
Species Mus musculus
 Database cross references - Apoa2
ExoCarta ExoCarta_11807
Vesiclepedia VP_11807
Entrez Gene 11807
UniProt P09813  
 Apoa2 identified in sEVs derived from the following tissue/cell type
Faeces 33431899    
Faeces 33431899    
 Gene ontology annotations for Apoa2
Molecular Function
    signaling receptor binding GO:0005102 ISO
    lipid transporter activity GO:0005319 ISO
    phospholipid binding GO:0005543 ISO
    high-density lipoprotein particle binding GO:0008035 IBA
    high-density lipoprotein particle binding GO:0008035 IMP
    lipid binding GO:0008289 ISO
    cholesterol binding GO:0015485 IEA
    cholesterol binding GO:0015485 ISO
    enzyme binding GO:0019899 IEA
    enzyme binding GO:0019899 ISO
    heat shock protein binding GO:0031072 IEA
    heat shock protein binding GO:0031072 ISO
    phosphatidylcholine binding GO:0031210 IEA
    phosphatidylcholine binding GO:0031210 ISO
    apolipoprotein receptor binding GO:0034190 IEA
    apolipoprotein receptor binding GO:0034190 ISO
    protein homodimerization activity GO:0042803 IEA
    protein homodimerization activity GO:0042803 ISO
    protein heterodimerization activity GO:0046982 ISO
    protein heterodimerization activity GO:0046982 ISS
    receptor ligand activity GO:0048018 IEA
    lipase inhibitor activity GO:0055102 IEA
    lipase inhibitor activity GO:0055102 ISO
    phosphatidylcholine-sterol O-acyltransferase activator activity GO:0060228 IEA
    phosphatidylcholine-sterol O-acyltransferase activator activity GO:0060228 ISO
    high-density lipoprotein particle receptor binding GO:0070653 IEA
    high-density lipoprotein particle receptor binding GO:0070653 ISO
    cholesterol transfer activity GO:0120020 IEA
    cholesterol transfer activity GO:0120020 ISO
    cholesterol transfer activity GO:0120020 ISO
Biological Process
    negative regulation of cytokine production involved in immune response GO:0002719 IEA
    negative regulation of cytokine production involved in immune response GO:0002719 ISO
    phosphatidylcholine biosynthetic process GO:0006656 IEA
    phosphatidylcholine biosynthetic process GO:0006656 ISO
    lipid transport GO:0006869 IMP
    signal transduction GO:0007165 IEA
    cholesterol metabolic process GO:0008203 IGI
    cholesterol metabolic process GO:0008203 IMP
    phospholipid catabolic process GO:0009395 IEA
    phospholipid catabolic process GO:0009395 ISO
    response to glucose GO:0009749 IEA
    response to glucose GO:0009749 ISO
    negative regulation of very-low-density lipoprotein particle remodeling GO:0010903 IEA
    negative regulation of very-low-density lipoprotein particle remodeling GO:0010903 ISO
    protein oxidation GO:0018158 ISO
    peptidyl-methionine modification GO:0018206 ISO
    regulation of intestinal cholesterol absorption GO:0030300 IMP
    cholesterol transport GO:0030301 IBA
    cholesterol transport GO:0030301 ISO
    animal organ regeneration GO:0031100 ISO
    regulation of protein stability GO:0031647 ISO
    negative regulation of cholesterol transport GO:0032375 ISO
    positive regulation of interleukin-8 production GO:0032757 ISO
    positive regulation of interleukin-8 production GO:0032757 ISS
    cholesterol efflux GO:0033344 IEA
    cholesterol efflux GO:0033344 ISO
    phospholipid efflux GO:0033700 IEA
    phospholipid efflux GO:0033700 ISO
    triglyceride-rich lipoprotein particle remodeling GO:0034370 IEA
    triglyceride-rich lipoprotein particle remodeling GO:0034370 ISO
    low-density lipoprotein particle remodeling GO:0034374 IEA
    low-density lipoprotein particle remodeling GO:0034374 ISO
    high-density lipoprotein particle remodeling GO:0034375 IEA
    high-density lipoprotein particle remodeling GO:0034375 ISO
    high-density lipoprotein particle assembly GO:0034380 IEA
    high-density lipoprotein particle assembly GO:0034380 ISO
    high-density lipoprotein particle clearance GO:0034384 IEA
    high-density lipoprotein particle clearance GO:0034384 ISO
    lipoprotein metabolic process GO:0042157 IDA
    cholesterol homeostasis GO:0042632 IBA
    cholesterol homeostasis GO:0042632 IDA
    cholesterol homeostasis GO:0042632 IGI
    cholesterol homeostasis GO:0042632 IMP
    cholesterol homeostasis GO:0042632 ISO
    reverse cholesterol transport GO:0043691 IEA
    reverse cholesterol transport GO:0043691 ISO
    diacylglycerol catabolic process GO:0046340 IEA
    diacylglycerol catabolic process GO:0046340 ISO
    positive regulation of phagocytosis GO:0050766 ISO
    positive regulation of phagocytosis GO:0050766 ISS
    protein stabilization GO:0050821 ISO
    protein stabilization GO:0050821 ISS
    negative regulation of lipid catabolic process GO:0050995 IEA
    negative regulation of lipid catabolic process GO:0050995 ISO
    positive regulation of lipid catabolic process GO:0050996 IEA
    positive regulation of lipid catabolic process GO:0050996 ISO
    negative regulation of lipase activity GO:0060192 IMP
    negative regulation of lipase activity GO:0060192 ISO
    negative regulation of cholesterol import GO:0060621 IEA
    negative regulation of cholesterol import GO:0060621 ISO
    negative regulation of cholesterol transporter activity GO:0060695 ISO
    cellular response to lipoprotein particle stimulus GO:0071402 IEA
    positive regulation of CoA-transferase activity GO:1905920 ISO
Subcellular Localization
    extracellular region GO:0005576 TAS
    extracellular space GO:0005615 IDA
    cytosol GO:0005829 TAS
    very-low-density lipoprotein particle GO:0034361 IEA
    very-low-density lipoprotein particle GO:0034361 ISO
    high-density lipoprotein particle GO:0034364 ISO
    spherical high-density lipoprotein particle GO:0034366 IBA
    spherical high-density lipoprotein particle GO:0034366 IEA
    spherical high-density lipoprotein particle GO:0034366 ISO
    chylomicron GO:0042627 IEA
    chylomicron GO:0042627 ISO
 Experiment description of studies that identified Apoa2 in sEVs
1
Experiment ID 303
MISEV standards
✔ Biophysical techniques
✔ Enriched markers
✘ Negative markers
✔ Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33431899    
Organism Mus musculus
Experiment description High-fat diet-induced upregulation of exosomal phosphatidylcholine contributes to insulin resistance
Authors "Kumar A, Sundaram K, Mu J, Dryden GW, Sriwastva MK, Lei C, Zhang L, Qiu X, Xu F, Yan J, Zhang X, Park JW, Merchant ML, Bohler HCL, Wang B, Zhang S, Qin C, Xu Z, Han X, McClain CJ, Teng Y, Zhang HG."
Journal name Nat Commun
Publication year 2021
Sample Faeces
Sample name Intestinal epithelial cells - C57BL/6
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
Lipid
miRNA
Methods used in the study Western blotting
Mass spectrometry
Immunofluorescence
miRNA array
HPLC
2
Experiment ID 304
MISEV standards
✔ Biophysical techniques
✔ Enriched markers
✘ Negative markers
✔ Particle analysis
Identified molecule Protein
Identification method Mass spectrometry
PubMed ID 33431899    
Organism Mus musculus
Experiment description High-fat diet-induced upregulation of exosomal phosphatidylcholine contributes to insulin resistance
Authors "Kumar A, Sundaram K, Mu J, Dryden GW, Sriwastva MK, Lei C, Zhang L, Qiu X, Xu F, Yan J, Zhang X, Park JW, Merchant ML, Bohler HCL, Wang B, Zhang S, Qin C, Xu Z, Han X, McClain CJ, Teng Y, Zhang HG."
Journal name Nat Commun
Publication year 2021
Sample Faeces
Sample name Intestinal epithelial cells - C57BL/6
Isolation/purification methods Differential centrifugation
Ultracentrifugation
Sucrose density gradient centrifugation
Flotation density -
Molecules identified in the study Protein
Lipid
miRNA
Methods used in the study Western blotting
Mass spectrometry
Immunofluorescence
miRNA array
HPLC
 Protein-protein interactions for Apoa2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 Ttr  
Co-fractionation Mus musculus
2 Apoh  
Co-fractionation Mus musculus
3 C4b  
Co-fractionation Mus musculus
4 NDRG1 10397
Two-hybrid Homo sapiens
5 Fga 14161
Co-fractionation Mus musculus
6 Aga  
Co-fractionation Mus musculus
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