Separate resistances to arsenate and arsenite (antimonate) encoded by the arsenical resistance operon of R factor R773.

DOI: 10.1128/JB.161.2.758-763.1985

关键词: Subcloning 、 Ars operon 、 Biology 、 Plasmid 、 Arsenite 、 Molecular biology 、 Escherichia coli 、 Antimonate 、 Operon 、 Arsenate 、 Microbiology

摘要: The arsenical resistance operon of R factor R773 was analyzed by subcloning and insertional inactivation. found to have two functional regions, the promoter-proximal region encoding arsenite antimonate promoter-distal arsenate resistance. A unique 1.6-kilobase fragment shown be sufficient encode produce extrusion from intact cells. Images