232d

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[[Image:232d.gif|left|200px]]<br /><applet load="232d" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="232d, resolution 1.300&Aring;" />
 
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'''THE HIGH RESOLUTION CRYSTAL STRUCTURE OF THE DNA DECAMER D(AGGCATGCCT)'''<br />
 
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==Overview==
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==THE HIGH RESOLUTION CRYSTAL STRUCTURE OF THE DNA DECAMER D(AGGCATGCCT)==
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The crystal structure of the DNA decamer d(AGGCATGCCT) has been determined to a resolution of 1.3 A and R factor of 13.9%. The structure has a unique conformation with each of the decamer single strands forming base-pairing interactions with two symmetry-related strands. The central eight bases of the decamer form an A-DNA octamer duplex with one symmetry-related strand whilst the terminal 5'-A and T-3' bases are flipped out and away from the octamer helix axis to form base-pairing interactions with a second symmetry-related strand. These A.T base-pairs lie perpendicular to the crystallographic c axis and pack within the unit cell in conjunction with a symmetry-related A.T base-pair displaced by 3.4 A degrees along the c axis. A novel base triplet interaction of the type A*(G.C) is present in the structure with interaction from the major groove side of the terminal 5'-A base to the minor groove of the central A-DNA octamer. This structure reports the first example of cobalt hexammine binding to a right-handed DNA duplex. The crystallographic asymmetric unit contains two cobalt hexammine ligands with one site in the major groove coordinating via hydrogen bonds to the 5'-AGG bases, and the second site located between DNA molecules and interacting with the oxygen atoms of phosphate groups.
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<StructureSection load='232d' size='340' side='right'caption='[[232d]], [[Resolution|resolution]] 1.30&Aring;' scene=''>
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== Structural highlights ==
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==About this Structure==
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<table><tr><td colspan='2'>[[232d]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=232D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=232D FirstGlance]. <br>
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232D is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with <scene name='pdbligand=NCO:'>NCO</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=232D OCA].
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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]] 1.3&#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=NCO:COBALT+HEXAMMINE(III)'>NCO</scene></td></tr>
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==Reference==
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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=232d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=232d OCA], [https://pdbe.org/232d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=232d RCSB], [https://www.ebi.ac.uk/pdbsum/232d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=232d ProSAT]</span></td></tr>
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The high resolution crystal structure of the DNA decamer d(AGGCATGCCT)., Nunn CM, Neidle S, J Mol Biol. 1996 Feb 23;256(2):340-51. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=8594201 8594201]
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</table>
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[[Category: Protein complex]]
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__TOC__
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[[Category: Neidle, S.]]
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</StructureSection>
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[[Category: Nunn, C M.]]
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[[Category: Large Structures]]
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[[Category: NCO]]
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[[Category: Neidle S]]
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[[Category: a-dna]]
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[[Category: Nunn CM]]
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[[Category: double helix]]
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[[Category: flipped-out bases]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 16:21:22 2008''
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THE HIGH RESOLUTION CRYSTAL STRUCTURE OF THE DNA DECAMER D(AGGCATGCCT)

PDB ID 232d

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