1i9f
From Proteopedia
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STRUCTURAL CHARACTERIZATION OF THE COMPLEX OF THE REV RESPONSE ELEMENT RNA WITH A SELECTED PEPTIDE
Overview
INTRODUCTION: The RSG-1.2 peptide was selected for specific binding to the Rev response element RNA, as the natural Rev peptide does. The RSG-1.2 sequence has features incompatible with the helical structure of the bound Rev peptide, indicating that it must bind in a different conformation. RESULTS: The binding of the RSG-1.2 peptide to the Rev response element RNA was characterized using multinuclear, multidimensional NMR. The RSG-1.2 peptide is shown to bind with the N-terminal segment of the peptide along the major groove in an extended conformation and turn preceding a C-terminal helical segment, which crosses the RNA groove in the region widened by the presence of purine-purine base pairs. These features make the details of the bound state rather different than that of the Rev peptide which targets the same RNA sequence binding as a single helix along the groove axis. CONCLUSIONS: These studies further demonstrate the versatility of arginine-rich peptides in recognition of specific RNA elements and the lack of conserved structural features in the bound state.
About this Structure
1I9F is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.
Reference
Structural characterization of the complex of the Rev response element RNA with a selected peptide., Zhang Q, Harada K, Cho HS, Frankel AD, Wemmer DE, Chem Biol. 2001 May;8(5):511-20. PMID:11358697
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