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A recombinant heterodimeric NusB/NusE protein complex of Escherichia coli was expressed under the control of a synthetic mini operon. Surface plasmon resonance measurements showed that the heterodimer complex has substantially higher affinity for the boxA RNA sequence motif of the ribosomal RNA (rrn) operons of E.coli as compared to monomeric NusB protein. Single base exchanges in boxA RNA reduced...
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