title: Molecular cloning of the mouse ouabain-resistance gene.
abstract: DNA prepared from ouabain-resistant mouse cells was able to transform ouabain-sensitive CV-1 cells to ouabain resistance after DNA-mediated gene transfer. The murine DNA fragment responsible for ouabain resistance was detected on the background of CV-1 DNA by virtue of a repetitive DNA sequence element that reacts positively with a mouse repeat DNA clone. CV-1 DNA is nonreactive with this probe. Southern analysis of several independently derived ouabain-resistant transformants indicates that the mouse ouaR gene is located on a 6.5-kilobase EcoRI restriction fragment. The 6.5-kilobase DNA fragment was initially isolated from a lambda phage library made from a ouabain-resistant secondary transformant and subsequently was subcloned in the plasmid vector pAT153. This plasmid was able to transform wild-type CV-1 cells to ouabain resistance at a frequency of about 10 cells per ng of DNA.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D002522:Chlorocebus aethiops; D003001:Cloning, Molecular; D004274:DNA, Recombinant / Q000032:analysis; D004351:Drug Resistance; D005796:Genes; D008168:Lung; D051379:Mice; D009693:Nucleic Acid Hybridization; D010042:Ouabain / Q000633:toxicity*; D010957:Plasmids; D000254:Sodium-Potassium-Exchanging ATPase / Q000235:genetics; D014162:Transfection
chemical_list: D004274:DNA, Recombinant; D010042:Ouabain; D000254:Sodium-Potassium-Exchanging ATPase