rRNA (rrn) Operon-Engineered Bacillus subtilisas a Feasible Test Organism for Antibiotic Discovery

Autor: Tanaka, Yukinori, Nanamiya, Hideaki, Yano, Koichi, Kakugawa, Koji, Kawamura, Fujio, Ochi, Kozo
Zdroj: Antimicrobial Agents and Chemotherapy; January 2013, Vol. 57 Issue: 4 p1948-1951, 4p
Abstrakt: ABSTRACTBacillus subtiliscontains 10 rRNA (rrn) operons. We found that rRNA operon-engineered B. subtilisstrain RIK543, with only the rrnOoperon, is specifically hypersensitive to RNA polymerase inhibitors such as rifamycin SV and rifampin (80-fold and 20-fold, respectively). In pilot screening experiments, we found actinomycete isolates successfully at an incidence of 1.9% (18/945) that produced antibacterials that were detectable only with RIK543 as the test organism. Strain RIK543 may be a feasible test organism for the discovery of novel RNA polymerase inhibitors.
Databáze: Supplemental Index