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1sds

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[[Image:1sds.gif|left|200px]]
 
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{{Structure
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==Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA==
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|PDB= 1sds |SIZE=350|CAPTION= <scene name='initialview01'>1sds</scene>, resolution 1.80&Aring;
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<StructureSection load='1sds' size='340' side='right'caption='[[1sds]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene> and <scene name='pdbligand=K:POTASSIUM ION'>K</scene>
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<table><tr><td colspan='2'>[[1sds]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SDS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SDS FirstGlance]. <br>
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|ACTIVITY=
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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]] 1.8&#8491;</td></tr>
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|GENE= RPL7AE, MJ1203 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2190 Methanocaldococcus jannaschii])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
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}}
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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=1sds FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sds OCA], [https://pdbe.org/1sds PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sds RCSB], [https://www.ebi.ac.uk/pdbsum/1sds PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sds ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RL7A_METJA RL7A_METJA] Multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal RNA, the RNA component of RNase P, box H/ACA, box C/D and box C'/D' sRNAs.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/sd/1sds_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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/main_output.php?pdb_ID=1sds ConSurf].
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<div style="clear:both"></div>
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'''Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA'''
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==See Also==
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*[[Ribosomal protein L7/L12|Ribosomal protein L7/L12]]
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__TOC__
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==Overview==
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</StructureSection>
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The archaeal RNA binding protein L7Ae and its eukaryotic homolog 15.5 kDa/Snu13 recognize K-turns. This structural motif is canonically comprised of two stems (one with tandem A.G base pairs, the other with Watson-Crick pairs) linked by an asymmetric internal loop. L7Ae recognizes conventional K-turns in ribosomal and box C/D RNAs but also binds specifically to some box H/ACA RNAs at terminal stem loops. These have the A.G paired stem, but lack the Watson-Crick stem. The structure of Methanococcus jannaschii L7Ae bound to a symmetric duplex RNA without Watson-Crick stems demonstrates how a binding site for this component of diverse ribonucleoprotein complexes can be constructed with only the A.G stem and the loop. The RNA adopts a functional conformation with the aid of a base triple and tight binding of divalent cations. Comparison with the 15.5 kDa/Snu13-RNA complex structure suggests why the eukaryotic homolog does not recognize terminal stem loop L7Ae binding sites.
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[[Category: Large Structures]]
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==About this Structure==
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1SDS is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii Methanocaldococcus jannaschii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SDS OCA].
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==Reference==
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Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA at 1.8 A resolution., Hamma T, Ferre-D'Amare AR, Structure. 2004 May;12(5):893-903. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15130481 15130481]
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[[Category: Methanocaldococcus jannaschii]]
[[Category: Methanocaldococcus jannaschii]]
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[[Category: Single protein]]
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[[Category: Ferre-D'Amare A]]
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[[Category: Amare, A Ferre-D.]]
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[[Category: Hamma T]]
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[[Category: Hamma, T.]]
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[[Category: CA]]
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[[Category: K]]
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[[Category: protein-rna complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:03:36 2008''
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Current revision

Structure of protein L7Ae bound to a K-turn derived from an archaeal box H/ACA sRNA

PDB ID 1sds

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