1enn

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[[Image:1enn.gif|left|200px]]
 
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==SOLVENT ORGANIZATION IN AN OLIGONUCLEOTIDE CRYSTAL: THE STRUCTURE OF D(GCGAATTCG)2 AT ATOMIC RESOLUTION==
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The line below this paragraph, containing "STRUCTURE_1enn", creates the "Structure Box" on the page.
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<StructureSection load='1enn' size='340' side='right'caption='[[1enn]], [[Resolution|resolution]] 0.89&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1enn]] is a 2 chain structure. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=475d 475d]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ENN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ENN FirstGlance]. <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]] 0.89&#8491;</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=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=O:OXYGEN+ATOM'>O</scene></td></tr>
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{{STRUCTURE_1enn| PDB=1enn | SCENE= }}
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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=1enn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1enn OCA], [https://pdbe.org/1enn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1enn RCSB], [https://www.ebi.ac.uk/pdbsum/1enn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1enn ProSAT]</span></td></tr>
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</table>
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'''SOLVENT ORGANIZATION IN AN OLIGONUCLEOTIDE CRYSTAL: THE STRUCTURE OF D(GCGAATTCG)2 AT ATOMIC RESOLUTION'''
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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==Overview==
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[[Category: Malinina L]]
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We describe the crystal structure of d(GCGAATTCG) determined by x-ray diffraction at atomic resolution level (0.89 A). The duplex structure is practically identical to that described at 2.05 A resolution (Van Meervelt, L., Vlieghe, D., Dautant, A., Gallois, B., Precigoux, G., and Kennard, O. (1995) Nature 374, 742-744), however about half of the phosphate groups show multiple conformations. The crystal has three regions with different solvent structure. One of them contains several ordered Mg(+2) ions and can be considered as an ionic crystal. A second region is formed by a network of ordered water molecules with a polygonal organization that binds three duplexes. The third region is formed by channels of solvent in which very few ordered solvent molecules are visible. The less ordered phosphates are found facing this channel. The latter region provides a view of DNA with highly movable charges, both negative phosphates and counterions, without a precise location.
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[[Category: Soler-Lopez M]]
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[[Category: Subirana JA]]
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==About this Structure==
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This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=475d 475d]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ENN OCA].
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==Reference==
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Solvent organization in an oligonucleotide crystal. The structure of d(GCGAATTCG)2 at atomic resolution., Soler-Lopez M, Malinina L, Subirana JA, J Biol Chem. 2000 Jul 28;275(30):23034-44. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10749874 10749874]
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[[Category: Malinina, L.]]
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[[Category: Soler-Lopez, M.]]
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[[Category: Subirana, J A.]]
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[[Category: Atomic resolution]]
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[[Category: B-dna]]
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[[Category: Base triplet]]
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[[Category: Hydration]]
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[[Category: Ion]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:19:06 2008''
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SOLVENT ORGANIZATION IN AN OLIGONUCLEOTIDE CRYSTAL: THE STRUCTURE OF D(GCGAATTCG)2 AT ATOMIC RESOLUTION

PDB ID 1enn

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