Peptides containing peptide nucleic acid (PNA) have been designed and synthesized to construct molecules recognizing a bulge or a loop structure of RNA. Such peptides were here designed from the HIV Rev protein that can bind the stem-loop IIB of the Rev responsive element (RRE) RNA. Variations of PNA modulated the binding affinities of the peptides to RRE IIB RNA. (C) 2000 Elsevier Science Ltd. All rights reserved.
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