The bicyclomycin sensitivities of 38 bicyclomycin-resistant mutants of transcription termination protein rho and the location of their mutations support a structural model of rho based on the F(1) ATPase.

Abstract excerpt

A total of 38 bicyclomycin-resistant mutants of Escherichia coli transcription termination protein Rho have been isolated. The locations of their mutations identify the ATP-binding region as the functional domain inhibited by bicyclomycin. Strains containing the S266C, S266A and L208R Rho mutations are very resistant to bicyclomycin in vivo. In a similar way, the mutant Rho proteins containing these mutations are...

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