Interactions of an Arg-rich region of transcription elongation protein NusA with NUT RNA: implications for the order of assembly of the lambda N antitermination complex in vivo.

Abstract excerpt

The E. coli NusA transcription elongation protein (NusA(Ec)), identified because of its requirement for transcription antitermination by the N protein, has an Arg-rich S1 RNA-binding domain. A complex of N and NusA with other host factors binding at NUT sites in the RNA renders RNA polymerase termination-resistant. An E. coli haploid for nusA944, having nine different codons replacing four normally found in the...

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