439d

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{{STRUCTURE_439d| PDB=439d | SCENE= }}
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==5'-R(*CP*UP*GP*GP*GP*CP*GP*G)-3', 5'-R(*CP*CP*GP*CP*CP*UP*GP*G)-3'==
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===5'-R(*CP*UP*GP*GP*GP*CP*GP*G)-3', 5'-R(*CP*CP*GP*CP*CP*UP*GP*G)-3'===
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<StructureSection load='439d' size='340' side='right' caption='[[439d]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
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{{ABSTRACT_PUBMED_11173467}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[439d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=439D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=439D FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BA:BARIUM+ION'>BA</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=439d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=439d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=439d RCSB], [http://www.ebi.ac.uk/pdbsum/439d PDBsum]</span></td></tr>
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</table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The structure of the RNA duplex r(CUGGGCGG).r(CCGCCUGG) has been determined at 1.6 A resolution and refined to a final R factor of 18.3% (R(free) = 24.1%). The sequence of the RNA fragment resembles domain E of Thermus flavus 5S rRNA. A previously undescribed wobble-like G.C base-pair formation is found. Owing to the observed hydrogen-bond network, it is proposed that the cytosine is protonated at position N3. The unusual base-pair formation is presumably strained by intermolecular interactions. In this context, crystal packing and particular intermolecular contacts may have direct influence on the three-dimensional structure. Furthermore, this structure includes two G.U wobble base pairs in tandem conformation, with the purines forming a so-called 'cross-strand G stack'.
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==About this Structure==
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Structure of an RNA duplex with an unusual G.C pair in wobble-like conformation at 1.6 A resolution.,Perbandt M, Vallazza M, Lippmann C, Betzel C, Erdmann VA Acta Crystallogr D Biol Crystallogr. 2001 Feb;57(Pt 2):219-24. PMID:11173467<ref>PMID:11173467</ref>
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[[439d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=439D OCA].
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[[Category: Betzel, C.]]
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Erdmann, V A.]]
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</div>
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[[Category: Lorenz, S.]]
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== References ==
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[[Category: Perbandt, M.]]
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<references/>
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[[Category: Vallazza, M.]]
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__TOC__
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</StructureSection>
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[[Category: Betzel, C]]
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[[Category: Erdmann, V A]]
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[[Category: Lorenz, S]]
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[[Category: Perbandt, M]]
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[[Category: Vallazza, M]]
[[Category: A-rna]]
[[Category: A-rna]]
[[Category: Fragment of 5s rrna]]
[[Category: Fragment of 5s rrna]]
[[Category: Rna]]
[[Category: Rna]]

Revision as of 09:08, 21 December 2014

5'-R(*CP*UP*GP*GP*GP*CP*GP*G)-3', 5'-R(*CP*CP*GP*CP*CP*UP*GP*G)-3'

439d, resolution 1.60Å

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