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New page: left|200px<br /><applet load="357d" size="350" color="white" frame="true" align="right" spinBox="true" caption="357d, resolution 3.500Å" /> '''3.5 A STRUCTURE OF ...
 
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[[Image:357d.gif|left|200px]]<br /><applet load="357d" size="350" color="white" frame="true" align="right" spinBox="true"
caption="357d, resolution 3.500&Aring;" />
'''3.5 A STRUCTURE OF FRAGMENT I FROM E. COLI 5S RRNA'''<br />


==Overview==
==3.5 A structure of fragment I from E. coli 5S RRNA==
Two new RNA structures portray how non-Watson-Crick base pairs and metal, ions can produce a unique RNA shape suitable for recognition by proteins., The crystal structures of a 62 nt domain of E. coli 5S ribosomal RNA and a, duplex dodecamer encompassing an internal loop E have been determined at, 3.0 and 1.5 A, respectively. This loop E region is distorted by three, "cross-strand purine stacks" and three novel, water-mediated noncanonical, base pairs and stabilized by a four metal ion zipper. These features give, its minor groove a unique hydrogen-bonding surface and make the adjacent, major groove wide enough to permit recognition by the ribosomal protein, L25, which is expected to bind to this surface.
<StructureSection load='357d' size='340' side='right'caption='[[357d]], [[Resolution|resolution]] 3.50&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[357d]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=357D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=357D FirstGlance]. <br>
357D is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=HG:'>HG</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=357D OCA].
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.5&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=HG:MERCURY+(II)+ION'>HG</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=SSU:URIDINE-5-PHOSPHOROTHIOATE'>SSU</scene></td></tr>
==Reference==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=357d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=357d OCA], [https://pdbe.org/357d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=357d RCSB], [https://www.ebi.ac.uk/pdbsum/357d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=357d ProSAT]</span></td></tr>
Metals, motifs, and recognition in the crystal structure of a 5S rRNA domain., Correll CC, Freeborn B, Moore PB, Steitz TA, Cell. 1997 Nov 28;91(5):705-12. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9393863 9393863]
</table>
[[Category: ]]
__TOC__
[[Category: Protein complex]]
</StructureSection>
[[Category: Correll, C.C.]]
[[Category: Escherichia coli]]
[[Category: Freeborn, B.]]
[[Category: Large Structures]]
[[Category: Moore, P.B.]]
[[Category: Correll CC]]
[[Category: Steitz, T.A.]]
[[Category: Freeborn B]]
[[Category: HG]]
[[Category: Moore PB]]
[[Category: MG]]
[[Category: Steitz TA]]
[[Category: double helix]]
[[Category: internal loop]]
[[Category: kinked]]
[[Category: mismatched]]
[[Category: modified]]
[[Category: overhanging base]]
[[Category: u-rna]]
 
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