2i91: Difference between revisions
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[[Image: | ==60kDa Ro autoantigen in complex with a fragment of misfolded RNA== | ||
<StructureSection load='2i91' size='340' side='right' caption='[[2i91]], [[Resolution|resolution]] 2.65Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2i91]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Xenopus_laevis Xenopus laevis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I91 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2I91 FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene><br> | |||
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">trove2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=8355 Xenopus laevis])</td></tr> | |||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2i91 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i91 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2i91 RCSB], [http://www.ebi.ac.uk/pdbsum/2i91 PDBsum]</span></td></tr> | |||
<table> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i9/2i91_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The Ro autoantigen is ring-shaped, binds misfolded noncoding RNAs and is proposed to function in quality control. Here we determine how Ro interacts with misfolded RNAs. Binding of Ro to misfolded precursor (pre)-5S ribosomal RNA requires a single-stranded 3' end and helical elements. As mutating most sequences of the helices and tail results in modest decreases in binding, Ro may be able to associate with a range of RNAs. Ro binds several other RNAs that contain single-stranded tails. A crystal structure of Ro bound to a misfolded pre-5S rRNA fragment reveals that the tail inserts into the cavity, while a helix binds on the surface. Most contacts of Ro with the helix are to the backbone. Mutagenesis reveals that Ro has an extensive RNA-binding surface. We propose that Ro uses this surface to scavenge RNAs that fail to bind their specific RNA-binding proteins. | |||
Structural and biochemical basis for misfolded RNA recognition by the Ro autoantigen.,Fuchs G, Stein AJ, Fu C, Reinisch KM, Wolin SL Nat Struct Mol Biol. 2006 Nov;13(11):1002-9. Epub 2006 Oct 15. PMID:17041599<ref>PMID:17041599</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Nucleoprotein|Nucleoprotein]] | *[[Nucleoprotein|Nucleoprotein]] | ||
== References == | |||
== | <references/> | ||
< | __TOC__ | ||
</StructureSection> | |||
[[Category: Xenopus laevis]] | [[Category: Xenopus laevis]] | ||
[[Category: Reinisch, K M.]] | [[Category: Reinisch, K M.]] | ||
Revision as of 13:21, 29 September 2014
60kDa Ro autoantigen in complex with a fragment of misfolded RNA60kDa Ro autoantigen in complex with a fragment of misfolded RNA
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe Ro autoantigen is ring-shaped, binds misfolded noncoding RNAs and is proposed to function in quality control. Here we determine how Ro interacts with misfolded RNAs. Binding of Ro to misfolded precursor (pre)-5S ribosomal RNA requires a single-stranded 3' end and helical elements. As mutating most sequences of the helices and tail results in modest decreases in binding, Ro may be able to associate with a range of RNAs. Ro binds several other RNAs that contain single-stranded tails. A crystal structure of Ro bound to a misfolded pre-5S rRNA fragment reveals that the tail inserts into the cavity, while a helix binds on the surface. Most contacts of Ro with the helix are to the backbone. Mutagenesis reveals that Ro has an extensive RNA-binding surface. We propose that Ro uses this surface to scavenge RNAs that fail to bind their specific RNA-binding proteins. Structural and biochemical basis for misfolded RNA recognition by the Ro autoantigen.,Fuchs G, Stein AJ, Fu C, Reinisch KM, Wolin SL Nat Struct Mol Biol. 2006 Nov;13(11):1002-9. Epub 2006 Oct 15. PMID:17041599[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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