208d

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==HIGH-RESOLUTION STRUCTURE OF A DNA HELIX FORMING (C.G)*G BASE TRIPLETS==
==HIGH-RESOLUTION STRUCTURE OF A DNA HELIX FORMING (C.G)*G BASE TRIPLETS==
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<StructureSection load='208d' size='340' side='right' caption='[[208d]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
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<StructureSection load='208d' size='340' side='right'caption='[[208d]], [[Resolution|resolution]] 2.05&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[208d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=208D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=208D FirstGlance]. <br>
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<table><tr><td colspan='2'>[[208d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=208D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=208D FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene><br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.05&#8491;</td></tr>
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<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=208d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=208d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=208d RCSB], [http://www.ebi.ac.uk/pdbsum/208d PDBsum]</span></td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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<table>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=208d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=208d OCA], [https://pdbe.org/208d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=208d RCSB], [https://www.ebi.ac.uk/pdbsum/208d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=208d ProSAT]</span></td></tr>
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<div style="background-color:#fffaf0;">
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</table>
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== Publication Abstract from PubMed ==
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Triple helices result from interaction between single- and double-stranded nucleic acids. Their formation is a possible mechanism for recombination of homologous gene sequences in nature and provides, inter alia, a basis for artificial control of gene activity. Triple-helix motifs have been extensively studied by a variety of techniques, but few high-resolution structural data are available. The only triplet structures characterized so far by X-ray diffraction were in protein-DNA complexes studied at about 3 A resolution. We report here the X-ray analysis of a DNA nonamer, d(GCGAATTCG), to a resolution of 2.05 A, in which the extended crystal structure contains (C.G)*G triplets as a fragment of triple helix. The guanosine-containing chains are in a parallel orientation. This arrangement is a necessary feature of models for homologous recombination which results ultimately in replacement of one length of DNA by another of similar sequence. The present-structure agrees with many published predictions of triplex organization, and provides an accurate representation of an element that allows sequence-specific association between single- and double-stranded nucleic acids.
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High-resolution structure of a DNA helix forming (C.G)*G base triplets.,Van Meervelt L, Vlieghe D, Dautant A, Gallois B, Precigoux G, Kennard O Nature. 1995 Apr 20;374(6524):742-4. PMID:7715732<ref>PMID:7715732</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Dautant, A.]]
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[[Category: Large Structures]]
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[[Category: Gallois, B.]]
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[[Category: Dautant A]]
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[[Category: Kennard, O.]]
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[[Category: Gallois B]]
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[[Category: Meervelt, L Van.]]
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[[Category: Kennard O]]
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[[Category: Precigoux, G.]]
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[[Category: Precigoux G]]
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[[Category: Vlieghe, D.]]
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[[Category: Van Meervelt L]]
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[[Category: B-dna]]
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[[Category: Vlieghe D]]
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[[Category: Base triplet]]
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[[Category: Dna]]
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[[Category: Double helix]]
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Current revision

HIGH-RESOLUTION STRUCTURE OF A DNA HELIX FORMING (C.G)*G BASE TRIPLETS

PDB ID 208d

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