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[[Image:1omk.png|left|200px]]
==The Crystal Structure of d(CACG(5IU)G)==
<StructureSection load='1omk' size='340' side='right' caption='[[1omk]], [[Resolution|resolution]] 1.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1omk]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OMK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OMK FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NCO:COBALT+HEXAMMINE(III)'>NCO</scene><br>
<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5IU:5-IODO-2-DEOXYURIDINE-5-MONOPHOSPHATE'>5IU</scene></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1omk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1omk OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1omk RCSB], [http://www.ebi.ac.uk/pdbsum/1omk PDBsum]</span></td></tr>
<table>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The first antiviral nucleoside 5-iodo-2'-deoxyuridine (IDU) against herpes simplex virus type 1 and type 2 is a thymidine analogue, i.e. the C5 methyl group is replaced by an I atom. The structure of the self-complementary hexamer d[CACG(IDU)G] was determined by single-crystal X-ray diffraction techniques. The orthorhombic crystals belong to space group P2(1)2(1)2(1), with unit-cell parameters a = 18.16, b = 30.03, c = 41.99 A. Refinement in the resolution range 20-1.3 A converged with a final R1 = 0.167, including 43 water molecules and two cobalt hexammine complexes. The incorporation of a large I atom has only minor consequences for the overall structure as is noticed in the IDU.A base pairs, which are of the common Watson-Crick type. To contribute to the still puzzling mechanism of this historically important agent, details of base stacking, helical parameters, hydration etc. have been studied. A general scheme of cobalt hexammine-binding modes in Z-DNA is provided, revealing similar binding modes for the reported structure.


{{STRUCTURE_1omk|  PDB=1omk  |  SCENE=  }}
Exploration of the influence of 5-iodo-2'-deoxyuridine incorporation on the structure of d[CACG(IDU)G].,Schuerman G, Van Hecke K, Van Meervelt L Acta Crystallogr D Biol Crystallogr. 2003 Aug;59(Pt 8):1525-8. Epub 2003, Jul 23. PMID:12876373<ref>PMID:12876373</ref>


===The Crystal Structure of d(CACG(5IU)G)===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_12876373}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[1omk]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OMK OCA].
</StructureSection>
 
==Reference==
<ref group="xtra">PMID:012876373</ref><references group="xtra"/>
[[Category: Hecke, K Van.]]
[[Category: Hecke, K Van.]]
[[Category: Meervelt, L Van.]]
[[Category: Meervelt, L Van.]]
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