Gene description for APOA2
Gene name apolipoprotein A-II
Gene symbol APOA2
Other names/aliases Apo-AII
ApoA-II
apoAII
Species Homo sapiens
 Database cross references - APOA2
ExoCarta ExoCarta_336
Entrez Gene 336
HGNC 601
MIM 107670
UniProt P02652  
 APOA2 identified in exosomes derived from the following tissue/cell type
Hepatocellular carcinoma cells 26054723    
Hepatocellular carcinoma cells 26054723    
Hepatocytes 26054723    
Plasma 19028452    
Platelets 25332113    
Platelets 25332113    
Platelets 25332113    
Saliva 19199708    
Urine 19056867    
 Gene ontology annotations for APOA2
Molecular Function
    protein homodimerization activity GO:0042803 IDA
    apolipoprotein receptor binding GO:0034190 IPI
    phosphatidylcholine-sterol O-acyltransferase activator activity GO:0060228 IDA
    lipid binding GO:0008289 IDA
    phosphatidylcholine binding GO:0031210 IDA
    cholesterol binding GO:0015485 IDA
    lipase inhibitor activity GO:0055102 IDA
    protein binding GO:0005515 IPI
    protein heterodimerization activity GO:0046982 IPI
    phospholipid binding GO:0005543 IDA
    lipid transporter activity GO:0005319 IDA
    cholesterol transporter activity GO:0017127 IDA
    high-density lipoprotein particle binding GO:0008035 IEA
    high-density lipoprotein particle receptor binding GO:0070653 IPI
Biological Process
    acute inflammatory response GO:0002526 IEA
    cholesterol homeostasis GO:0042632 IDA
    negative regulation of cholesterol transport GO:0032375 IMP
    phospholipid catabolic process GO:0009395 IDA
    protein oxidation GO:0018158 IDA
    cholesterol efflux GO:0033344 IDA
    triglyceride-rich lipoprotein particle remodeling GO:0034370 IDA
    regulation of protein stability GO:0031647 IDA
    response to glucose GO:0009749 IDA
    diacylglycerol catabolic process GO:0046340 IDA
    negative regulation of lipid catabolic process GO:0050995 IDA
    organ regeneration GO:0031100 IEA
    protein folding GO:0006457 IDA
    reverse cholesterol transport GO:0043691 IDA
    phospholipid efflux GO:0033700 IDA
    positive regulation of catalytic activity GO:0043085 IDA
    response to glucocorticoid GO:0051384 IEA
    peptidyl-methionine modification GO:0018206 IDA
    positive regulation of lipid catabolic process GO:0050996 IDA
    phosphatidylcholine biosynthetic process GO:0006656 IDA
    negative regulation of very-low-density lipoprotein particle remodeling GO:0010903 IDA
    cellular lipid metabolic process GO:0044255 TAS
    regulation of intestinal cholesterol absorption GO:0030300 IEA
    small molecule metabolic process GO:0044281 TAS
    negative regulation of cytokine secretion involved in immune response GO:0002740 IDA
    low-density lipoprotein particle remodeling GO:0034374 IDA
    high-density lipoprotein particle clearance GO:0034384 IDA
    cholesterol metabolic process GO:0008203 IEA
    positive regulation of interleukin-8 biosynthetic process GO:0045416 IDA
    retinoid metabolic process GO:0001523 TAS
    triglyceride metabolic process GO:0006641 TAS
    lipoprotein metabolic process GO:0042157 TAS
    response to estrogen GO:0043627 IEA
    high-density lipoprotein particle assembly GO:0034380 IDA
    negative regulation of cholesterol import GO:0060621 IDA
    response to drug GO:0042493 IEA
    negative regulation of lipase activity GO:0060192 IDA
    phototransduction, visible light GO:0007603 TAS
    negative regulation of cholesterol transporter activity GO:0060695 IDA
    high-density lipoprotein particle remodeling GO:0034375 IDA
    positive regulation of cholesterol esterification GO:0010873 IDA
    viral process GO:0016032 IEA
Subcellular Localization
    endoplasmic reticulum lumen GO:0005788 TAS
    high-density lipoprotein particle GO:0034364 IDA
    spherical high-density lipoprotein particle GO:0034366 IDA
    early endosome GO:0005769 TAS
    cytosol GO:0005829 TAS
    very-low-density lipoprotein particle GO:0034361 IDA
    blood microparticle GO:0072562 IDA
    chylomicron GO:0042627 IDA
    extracellular region GO:0005576 TAS
    extracellular exosome GO:0070062 IDA
 Experiment description of studies that identified APOA2 in exosomes
1
Experiment ID 234
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name HKCI-C3
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
2
Experiment ID 235
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocellular carcinoma cells
Sample name HKCI-8
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RT-PCR
RNA Sequencing
3
Experiment ID 237
ISEV standards
EM
EV Biophysical techniques
TSG101|Alix|HSC70|GAPDH
EV Cytosolic markers
EV Membrane markers
HSP90B1
EV Negative markers
qNano
EV Particle analysis
Identified molecule mRNA
Identification method RNA Sequencing
PubMed ID 26054723    
Organism Homo sapiens
Experiment description Hepatocellular carcinoma-derived exosomes promote motility of immortalized hepatocyte through transfer of oncogenic proteins and RNAs
Authors He M, Qin H, Poon TC, Sze SC, Ding X, Co NN, Ngai SM, Chan TF, Wong N
Journal name Carcinogenesis
Publication year 2015
Sample Hepatocytes
Sample name MIHA
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Sucrose density gradient
Flotation density 1.13-1.19 g/mL
Molecules identified in the study Protein
RNA
Methods used in the study Western blotting
Mass spectrometry
RNA Sequencing
4
Experiment ID 44
ISEV standards
IEM
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19028452    
Organism Homo sapiens
Experiment description Proteomic profiling of human plasma exosomes identifies PPARgamma as an exosome-associated protein.
Authors Looze C, Yui D, Leung L, Ingham M, Kaler M, Yao X, Wu WW, Shen RF, Daniels MP, Levine SJ
Journal name BBRC
Publication year 2009
Sample Plasma
Sample name Plasma
Isolation/purification methods Filtration
Size exclusion
Sucrose density gradient
Flotation density 1.15-1.16 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
Immunoelectron Microscopy
5
Experiment ID 231
ISEV standards
EV Biophysical techniques
Alix
EV Cytosolic markers
CD63|CD9
EV Membrane markers
EV Negative markers
NTA
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 1
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Lipids
Methods used in the study Western blotting
Mass spectrometry
6
Experiment ID 232
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 2
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
7
Experiment ID 233
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 25332113    
Organism Homo sapiens
Experiment description Lipidomic and proteomic characterization of platelet extracellular vesicle subfractions from senescent platelets
Authors Pienimaeki-Roemer A, Kuhlmann K, Bottcher A, Konovalova T, Black A, Orso E, Liebisch G, Ahrens M, Eisenacher M, Meyer HE, Schmitz G.
Journal name Transfusion
Publication year 2015
Sample Platelets
Sample name PL-Exs - Rep 3
Isolation/purification methods Differential centrifugation
Filtration
Ultracentrifugation
Optiprep density gradient
Flotation density 1.12-1.15 g/mL
Molecules identified in the study Protein
Methods used in the study Mass spectrometry
8
Experiment ID 66
ISEV standards
IEM
EV Biophysical techniques
TSG101|Alix
EV Cytosolic markers
CD63|CD81
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19199708    
Organism Homo sapiens
Experiment description Proteomic analysis of human parotid gland exosomes by multidimensional protein identification technology (MudPIT).
Authors Gonzalez-Begne M, Lu B, Han X, Hagen FK, Hand AR, Melvin JE, Yates JR
Journal name JPR
Publication year 2009
Sample Saliva
Sample name Saliva
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
Immunoelectron Microscopy
9
Experiment ID 63
ISEV standards
EV Biophysical techniques
EV Cytosolic markers
AQP2
EV Membrane markers
EV Negative markers
EV Particle analysis
Identified molecule protein
Identification method Mass spectrometry
PubMed ID 19056867    
Organism Homo sapiens
Experiment description Large-scale proteomics and phosphoproteomics of urinary exosomes.
Authors Gonzales PA, Pisitkun T, Hoffert JD, Tchapyjnikov D, Star RA, Kleta R, Wang NS, Knepper MA
Journal name JASN
Publication year 2009
Sample Urine
Sample name Urine - Normal
Isolation/purification methods Differential centrifugation
Flotation density -
Molecules identified in the study Protein
Methods used in the study Mass spectrometry [LTQ]
Western blotting
 Protein-protein interactions for APOA2
  Protein Interactor ExoCarta ID Identification method PubMed Species
1 APOD 347
Co-purification Homo sapiens
Affinity Capture-MS Homo sapiens
2 APOC1  
Affinity Capture-MS Homo sapiens
3 PLTP 5360
Reconstituted Complex Homo sapiens
Affinity Capture-MS Homo sapiens
Co-purification Homo sapiens
4 APOF  
Co-purification Homo sapiens
5 C4A  
Invivo Homo sapiens
Invitro Homo sapiens
6 APOA2 336
Invitro Homo sapiens
Affinity Capture-MS Homo sapiens
Invitro Homo sapiens
Affinity Capture-MS Homo sapiens
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