Gene description for Abcb4
Gene name ATP-binding cassette, subfamily B (MDR/TAP), member 4
Gene symbol Abcb4
Other names/aliases Mdr2
Pgy3
Species Rattus norvegicus
 Database cross references - Abcb4
ExoCarta ExoCarta_24891
Vesiclepedia VP_24891
Entrez Gene 24891
UniProt Q08201  
 Abcb4 identified in sEVs derived from the following tissue/cell type
Reticulocytes 21828046    
 Gene ontology annotations for Abcb4
Molecular Function
    protein binding GO:0005515 IPI
    ATP binding GO:0005524 IEA
    ATP hydrolysis activity GO:0016887 IEA
    ATPase-coupled transmembrane transporter activity GO:0042626 IBA
    ATPase-coupled transmembrane transporter activity GO:0042626 ISO
    ATPase-coupled transmembrane transporter activity GO:0042626 ISS
    phosphatidylcholine floppase activity GO:0090554 IBA
    phosphatidylcholine floppase activity GO:0090554 IEA
    phosphatidylcholine floppase activity GO:0090554 ISO
    phosphatidylcholine floppase activity GO:0090554 ISS
    ceramide floppase activity GO:0099038 ISO
    ABC-type transporter activity GO:0140359 IEA
Biological Process
    xenobiotic transmembrane transport GO:0006855 ISO
    response to xenobiotic stimulus GO:0009410 IEP
    positive regulation of cholesterol transport GO:0032376 IEA
    positive regulation of cholesterol transport GO:0032376 ISO
    positive regulation of cholesterol transport GO:0032376 ISS
    bile acid secretion GO:0032782 IEA
    bile acid secretion GO:0032782 ISO
    bile acid secretion GO:0032782 ISS
    phospholipid translocation GO:0045332 IBA
    phospholipid translocation GO:0045332 IEA
    phospholipid translocation GO:0045332 ISO
    response to glucocorticoid GO:0051384 IEP
    transmembrane transport GO:0055085 IEA
    lipid homeostasis GO:0055088 IEA
    lipid homeostasis GO:0055088 ISO
    lipid homeostasis GO:0055088 ISS
    positive regulation of phospholipid translocation GO:0061092 IEA
    positive regulation of phospholipid translocation GO:0061092 ISO
    positive regulation of phospholipid translocation GO:0061092 ISS
    ceramide translocation GO:0099040 ISO
    response to fenofibrate GO:1901557 IEA
    response to fenofibrate GO:1901557 ISO
    response to fenofibrate GO:1901557 ISS
    cellular response to bile acid GO:1903413 IEA
    cellular response to bile acid GO:1903413 ISO
    cellular response to bile acid GO:1903413 ISS
    positive regulation of phospholipid transport GO:2001140 ISO
    positive regulation of phospholipid transport GO:2001140 ISS
Subcellular Localization
    Golgi membrane GO:0000139 IDA
    nucleoplasm GO:0005654 IEA
    nucleoplasm GO:0005654 ISO
    cytoplasm GO:0005737 ISO
    cytosol GO:0005829 IEA
    cytosol GO:0005829 ISO
    plasma membrane GO:0005886 ISO
    focal adhesion GO:0005925 IEA
    focal adhesion GO:0005925 ISO
    membrane GO:0016020 ISO
    apical plasma membrane GO:0016324 IBA
    apical plasma membrane GO:0016324 IDA
    apical plasma membrane GO:0016324 IEA
    apical plasma membrane GO:0016324 ISO
    clathrin-coated vesicle GO:0030136 IEA
    membrane raft GO:0045121 IEA
    intercellular canaliculus GO:0046581 IEA
    intercellular canaliculus GO:0046581 ISO
 Experiment description of studies that identified Abcb4 in sEVs
1
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
 Protein-protein interactions for Abcb4
  Protein Interactor ExoCarta ID Identification method PubMed Species
No interactions are found.
 Pathways in which Abcb4 is involved
PathwayEvidenceSource
ABC-family proteins mediated transport IEA Reactome
Transport of small molecules IEA Reactome





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