422d: Difference between revisions
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==5'-R(*GP*AP*UP*CP*AP*CP*UP*UP*CP*GP*GP*U)-3'== | |||
<StructureSection load='422d' size='340' side='right' caption='[[422d]], [[Resolution|resolution]] 2.60Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[422d]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=422D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=422D FirstGlance]. <br> | |||
</td></tr><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=422d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=422d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=422d RCSB], [http://www.ebi.ac.uk/pdbsum/422d PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The crystal structure of an RNA dodecamer, r(GAUCACUUCGGU), was solved at 2.6 A resolution by the molecular-replacement method and refined to an R(work) of 18.8% (R(free) = 22.8%) using 2494 reflections. The dodecamer crystallized in the monoclinic space group C2, with unit-cell parameters a = 71.34, b = 39.98, c = 32.47 A, beta = 104.7 degrees and two independent strands in the asymmetric unit. The dodecamer adopts an octamer duplex structure with four 5'-overhang residues (G1A2U3C4), which form Watson-Crick base pairs with another four 5'-overhang residues of a symmetry-related duplex. The octamer duplex (ACUUCGGU) contains at its center four mismatched base pairs flanked by two Watson-Crick base pairs. The mismatched bases form two G.U wobble base pairs at the ends and two U.C base pairs at the center, with one base-base hydrogen bond N4(C).O4(U) and a water bridge connecting the N(3) of the cytosine and uridine. The present study reinforces the concept of the stability of the conformation of UUCG in RNA double-helical structures. | |||
Structure of the dodecamer r(GAUCACUUCGGU) with four 5'-overhang nucleotides.,Eswaramoorthy S, Rao ST, Pan B, Sundaralingam M Acta Crystallogr D Biol Crystallogr. 2004 Jan;60(Pt 1):8-12. Epub 2003 Dec, 18. PMID:14684886<ref>PMID:14684886</ref> | |||
== | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | |||
[[Category: Eswaramoorthy, S | == References == | ||
[[Category: Rao, S T | <references/> | ||
[[Category: Sundaralingam, M | __TOC__ | ||
</StructureSection> | |||
[[Category: Eswaramoorthy, S]] | |||
[[Category: Rao, S T]] | |||
[[Category: Sundaralingam, M]] | |||
[[Category: Double helix]] | [[Category: Double helix]] | ||
[[Category: Rna]] | [[Category: Rna]] | ||