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==Structural study of dna duplex containaing a n-(2-deoxy-beta-erytho-pentofuranosyl) formamide frameshift by nmr and restrained molecular dynamics==
<StructureSection load='1osr' size='340' side='right'caption='[[1osr]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1osr]] is a 2 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OSR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OSR FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2DF:N-(2-DEOXY-BETA-D-ERYTHO-PENTOFURANOSYL-5-PHOSPHATE)+FORMAMIDE'>2DF</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1osr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1osr OCA], [https://pdbe.org/1osr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1osr RCSB], [https://www.ebi.ac.uk/pdbsum/1osr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1osr ProSAT]</span></td></tr>
</table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The presence of an N-(2-deoxy-beta-D-erythro-pentofuranosyl) formamide (F) residue, a ring fragmentation product of thymine, in a frameshift context in the sequence 5'-d-(AGGACCACG)*d(CGTGGFTCCT) has been studied by 1H and 31P nuclear magnetic resonance (NMR) and molecular dynamics. Two-dimensional NMR studies show that the formamide residue, whether the cis or trans isomer, is rotated out of the helix and that the bases on either side of the formamide residue in the sequence, G14 and T16, are stacked over each other in a way similar to normal B-DNA. The cis and trans isomers were observed in the ratio 3:2 in solution. Information extracted from 31P NMR data reveal a modification of the phosphodiester backbone conformation at the extrahelical site, which is also observed during the molecular dynamics simulations.

Structural study of DNA duplex containing an N-(2-deoxy-beta-D-erythro-pentofuranosyl) formamide frameshift by NMR and restrained molecular dynamics.,Maufrais C, Fazakerley GV, Cadet J, Boulard Y Nucleic Acids Res. 2003 Oct 15;31(20):5930-40. PMID:14530441<ref>PMID:14530441</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1osr" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Boulard Y]]
[[Category: Cadet J]]
[[Category: Fazakerley GV]]
[[Category: Maufrais C]]