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1d92

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==REFINED CRYSTAL STRUCTURE OF AN OCTANUCLEOTIDE DUPLEX WITH G.T MISMATCHED BASE-PAIRS==
==REFINED CRYSTAL STRUCTURE OF AN OCTANUCLEOTIDE DUPLEX WITH G.T MISMATCHED BASE-PAIRS==
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<StructureSection load='1d92' size='340' side='right' caption='[[1d92]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
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<StructureSection load='1d92' size='340' side='right'caption='[[1d92]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[1d92]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D92 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1D92 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[1d92]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D92 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1D92 FirstGlance]. <br>
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</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=1d92 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d92 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1d92 RCSB], [http://www.ebi.ac.uk/pdbsum/1d92 PDBsum]</span></td></tr>
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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]] 2.25&#8491;</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=1d92 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d92 OCA], [https://pdbe.org/1d92 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1d92 RCSB], [https://www.ebi.ac.uk/pdbsum/1d92 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1d92 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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Single crystal X-ray diffraction techniques have been used to determine the structure of the DNA octamer d(G-G-G-G-C-T-C-C) at a resolution of 2.25 A. The asymmetric unit consists of two strands coiled about each other to produce an A-type DNA helix. The double helix contains six G . C Watson-Crick base-pairs and two G . T mismatched base-pairs. The mismatches adopt a "wobble" type structure in which both bases retain their major tautomer forms. The double helix is able to accommodate this G . T pairing with little distortion of the overall helical conformation. Crystals of this octamer melt at a substantially lower temperature than do those of a related octamer also containing two G . T base-pairs. We attribute this destabilization to disruption of the hydration network around the mismatch site combined with changes in intermolecular packing. Full details are given of conformational parameters, base stacking, intermolecular contacts and hydration involving 52 solvent molecules.
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Refined crystal structure of an octanucleotide duplex with G . T mismatched base-pairs.,Hunter WN, Kneale G, Brown T, Rabinovich D, Kennard O J Mol Biol. 1986 Aug 20;190(4):605-18. PMID:3783714<ref>PMID:3783714</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: Brown, T.]]
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[[Category: Large Structures]]
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[[Category: Hunter, W N.]]
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[[Category: Brown T]]
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[[Category: Kennard, O.]]
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[[Category: Hunter WN]]
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[[Category: Kneale, G.]]
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[[Category: Kennard O]]
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[[Category: Rabinovich, D.]]
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[[Category: Kneale G]]
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[[Category: A-dna]]
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[[Category: Rabinovich D]]
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[[Category: Dna]]
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[[Category: Double helix]]
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[[Category: Mismatched]]
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Current revision

REFINED CRYSTAL STRUCTURE OF AN OCTANUCLEOTIDE DUPLEX WITH G.T MISMATCHED BASE-PAIRS

PDB ID 1d92

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