title: Analysis of Mdr50: a Drosophila P-glycoprotein/multidrug resistance gene homolog.
abstract: Using degenerate oligonucleotides from conserved portions of the ATP-binding domain of the active transporter genes, a new member of this gene superfamily has been cloned from Drosophila DNA. The gene contains two sets of transmembrane domains and two ATP-binding domains and shows a high degree of similarity to the mammalian P-glycoprotein/multidrug resistance (MDR) genes. The gene is adjacent to Hsc5, a locus mapped to chromosome 2, band 50, and is named Mdr50. Mdr50 represents the third MDR homolog identified in Drosophila. Conservation in the position of intervening sequences between Mdr50 and the human MDR genes provides further evidence for their common origin.
authors.affiliation: Biological Carcinogenesis and Development Program, National Cancer Institute, Frederick Cancer Research and Development Center, Maryland 21702-1201.
authors.forename: B
authors.initials: B
authors.lastname: Gerrard
authors.forename: C
authors.initials: C
authors.lastname: Stewart
authors.forename: M
authors.initials: M
authors.lastname: Dean
mesh_terms: D018435:ATP Binding Cassette Transporter, Subfamily B; D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001693:Biological Transport, Active / Q000235:genetics*; D002352:Carrier Proteins / Q000235:genetics; D016384:Consensus Sequence; D019005:Cystic Fibrosis Transmembrane Conductance Regulator; D029721:Drosophila Proteins; D004331:Drosophila melanogaster / Q000235:genetics*; D017344:Genes, Insect; D006801:Humans; D007301:Insect Hormones / Q000235:genetics*; D008562:Membrane Glycoproteins / Q000235:genetics; D008565:Membrane Proteins / Q000235:genetics; D008969:Molecular Sequence Data; D005810:Multigene Family; D016366:Open Reading Frames; D016133:Polymerase Chain Reaction; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D013045:Species Specificity
chemical_list: D018435:ATP Binding Cassette Transporter, Subfamily B; D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; C505032:CFTR protein, human; D002352:Carrier Proteins; D029721:Drosophila Proteins; D007301:Insect Hormones; D008562:Membrane Glycoproteins; D008565:Membrane Proteins; C083351:multidrug resistance protein 50, Drosophila; D019005:Cystic Fibrosis Transmembrane Conductance Regulator