Mutations in an RNP1 consensus sequence of Rho protein reduce RNA binding affinity but facilitate helicase turnover.

Abstract excerpt

Escherichia coli rho protein facilitates transcription termination by a mechanism that involves rho binding to the nascent RNA, activation of rho's RNA-dependent ATPase activity, and release of the mRNA from the DNA template. The initial step, formation of a rho-RNA complex, is mediated primarily by an RNA binding domain included within the amino-terminal 151 amino acids of rho protein. We have now identified one...

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