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FLASH GENE
Symbol ABCB6 contributors: mct/npt/pgu - updated : 25-01-2012
HGNC name ATP-binding cassette, sub-family B (MDR/TAP), member 6
HGNC id 47
EXPRESSION
Type ubiquitous
   expressed in (based on citations)
organ(s)
SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
Cardiovascularheart   highly
Digestiveliver   lowly
Endocrinepancreas   moderately
Nervousbrain   lowly
Reproductivemale systemprostate  moderately
Respiratorylung   lowly
Visualeyeretina  moderately Homo sapiens
tissue
SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
Blood / Hematopoieticbone marrow   
Connectivebone   
Epithelialbarrier liningretinal pigment epithelium (RPE)   Homo sapiens
Muscularstriatumskeletal highly
cell lineage
cell lines
fluid/secretion
at STAGE
physiological period fetal
Text liver
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • N-terminal hydrophobic region of 220 residues that functions as a primary determinant of co-translational targeting to the endoplasmic reticulum (ER) , and a atypical site for glycosylation (NXC)
  • two ATP binding domains
  • two transmembrane (2TM) domains (2 x 6 segments)
  • mono polymer homomer , heteromer , dimer
    HOMOLOGY
    interspecies homolog to murine Abcb6 (89.4pc)
    homolog to rattus Abcb6 (88.4pc)
    ortholog to a yeast ABC protein that is located in the mitochondrial inner membrane
    intraspecies homolog to ATM1 (highly)
    Homologene
    FAMILY
  • ATP binding cassette superfamily
  • subfamily B (MDR/TAP)
  • heavy metal importer subfamily
  • CATEGORY transport carrier
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm,organelle,mitochondria,outer
    intracellular,cytoplasm,organelle,membrane
    intracellular,cytoplasm,organelle,endoplasmic reticulum
    intracellular,cytoplasm,organelle,Golgi
    text
  • localizes to ER-derived membranes, primarily the Golgi apparatus, but not exclusively in mitochondria
  • localizes to both the outer mitochondrial membrane and the plasma membrane
  • basic FUNCTION
  • ABC transporter, traffic ATPase
  • transporter of iron/sulfur from ER to cytosol, involved in iron homeostasis
  • involved in the transport heme- and/or iron-related compounds from the mitochondrial matrix into the cytosol and in regulation of iron
  • required for mitochondrial porphyrin uptake
  • may be involved in porphyrin transport
  • functionally linked to heme biosynthesis
  • plays a functional role in the plasma membrane
  • involved in haem-precursor transport across the mitochondrial membrane
  • ATP-binding cassette transporter that is highly expressed in cells resistant to arsenic
  • its expression in response to sodium arsenite might be an endogenous protective mechanism activated to protect cells against arsenite-induced oxidative stress
  • mitochondrial transporter that regulates porphyrin biosynthesis
  • plays a role in cell growth and proliferation by targeting the cell cycle
  • mitochondrial porphyrin transporter essential for heme biosynthesis, but it is also suspected to contribute to anticancer drug resistance, as do other ABC transporters located at the plasma membrane
  • having a function in the synthesis of Fe-S clusters and/or iron homeostasis
  • transports potentially a signaling molecule involved in eye development
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    text iron ion homeostasis
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule nucleotide,
  • ATP
  • protein
    cell & other
    REGULATION
    Other up-regulated by elevation of cellular porphyrins
    ASSOCIATED DISORDERS
    corresponding disease(s) LANG , CLBM2
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    tumoral     --over  
    in hepatocellular carcinoma
    Susceptibility
    Variant & Polymorphism
    Candidate gene candidate gene for lethal neonatal metabolic syndrome, a disorder of mitochondrial function
    Marker
    Therapy target
    ANIMAL & CELL MODELS