Crystal Structure of Plautia Stali Intestine Virus Intergenic Region Internal Ribosome Entry Site Ribosomal Binding Domain RNA at 3.1 Angstroms

Structural basis for ribosome recruitment and manipulation by a viral IRES RNA

residues 6084, ins. code A-F, and 6119, ins. code A-E, are inserted to induce crystallization
Ribosomal Binding Domain of the IRES RNA

GCUGACUAUGUGAUCUUAUUAAAAUUAGGUUAAAUUUCGAGGUUAAAAAUAGUUUUAAUAUUGCUAUAGUCUUAGAGGUC
UUGCGAAAGCUUACCACACAAGAUGGACCGGAGCGAAAGCUCCAAUAUCUAGUGUACCCUCG

15% MPD, 150 mM MgAcetate, 0.5 mM Spermidine; cryoprotected with 20% MPD, 150 mM MgAcetate, 50 mM Na-MES pH 5.6, 5 mM Iridium (III) hexammine, vapor diffusion, sitting drop, temperature 303K

15% MPD, 100 mM MgAcetate, 0.5 mM Spermidine; cryoprotected with 20% MPD, 100 mM MgAcetate, 50 mM Na-MES pH 5.6, 5% isopropanol, vapor diffusion, sitting drop, temperature 303K

Sequence occurs naturally in Plautia Stali Intestine Virus

Two molecules in ASU form a domain-swap dimer. Region 1 of chain A and region 2 of chain M form the biological unit. Likewise region 1 of chain M and region 2 of chain A form the second copy of the biological unit.

RNA; IRES; ribosomal binding domain; PSIV; under wound helix; double-nested pseudoknot, RNA