title: Localization of the human multiple drug resistance gene, MDR1, to 7q21.1.
abstract: Multiple drug resistance has been shown to be associated with amplification/increased expression of a gene designated MDR. The localization of one member of the MDR gene family, MDR1, to the long arm of chromosome 7 by in situ hybridization is reported.
mesh_terms: D002871:Chromosome Banding; D002874:Chromosome Mapping; D002897:Chromosomes, Human, Pair 7; D004351:Drug Resistance / Q000235:genetics*; D005819:Genetic Markers; D006801:Humans; D007621:Karyotyping; D009693:Nucleic Acid Hybridization
chemical_list: D005819:Genetic Markers