Cross-Resistance of Escherichia coli RNA Polymerases Conferring Rifampin Resistance to Different Antibiotics

Abstract excerpt

In this study we further defined the rifampin-binding sites in Escherichia coli RNA polymerase (RNAP) and determined the relationship between rifampin-binding sites and the binding sites of other antibiotics, including two rifamycin derivatives, rifabutin and rifapentine, and streptolydigin and sorangicin A, which are unrelated to rifampin, using a purified in vitro system. We found that there is almost a...

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