4bw0: Difference between revisions
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==The molecular recognition of kink turn structure by the L7Ae class of proteins== | ==The molecular recognition of kink turn structure by the L7Ae class of proteins== | ||
<StructureSection load='4bw0' size='340' side='right' caption='[[4bw0]], [[Resolution|resolution]] 2.33Å' scene=''> | <StructureSection load='4bw0' size='340' side='right'caption='[[4bw0]], [[Resolution|resolution]] 2.33Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4bw0]] is a 2 chain structure with sequence from [ | <table><tr><td colspan='2'>[[4bw0]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Archaeoglobus_fulgidus Archaeoglobus fulgidus] and [https://en.wikipedia.org/wiki/Haloarcula_marismortui Haloarcula marismortui]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4BW0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4BW0 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.33Å</td></tr> | ||
<tr id=' | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4bw0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4bw0 OCA], [https://pdbe.org/4bw0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4bw0 RCSB], [https://www.ebi.ac.uk/pdbsum/4bw0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4bw0 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/RL7A_ARCFU RL7A_ARCFU] Multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal RNA, box H/ACA and box C/D sRNAs.<ref>PMID:12560482</ref> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 17: | Line 18: | ||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 4bw0" style="background-color:#fffaf0;"></div> | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Archaeoglobus fulgidus]] | ||
[[Category: | [[Category: Haloarcula marismortui]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Huang L]] | ||
[[Category: Lilley DMJ]] | |||
Latest revision as of 14:59, 20 December 2023
The molecular recognition of kink turn structure by the L7Ae class of proteinsThe molecular recognition of kink turn structure by the L7Ae class of proteins
Structural highlights
FunctionRL7A_ARCFU Multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal RNA, box H/ACA and box C/D sRNAs.[1] Publication Abstract from PubMedL7Ae is a member of a protein family that binds kink-turns (k-turns) in many functional RNA species. We have solved the X-ray crystal structure of the near-consensus sequence Kt-7 of Haloarcula marismortui bound by Archaeoglobus fulgidus L7Ae at 2.3-A resolution. We also present a structure of Kt-7 in the absence of bound protein at 2.2-A resolution. As a result, we can describe a general mode of recognition of k-turn structure by the L7Ae family proteins. The protein makes interactions in the widened major groove on the outer face of the k-turn. Two regions of the protein are involved. One is an alpha-helix that enters the major groove of the NC helix, making both nonspecific backbone interactions and specific interactions with the guanine nucleobases of the conserved G*A pairs. A hydrophobic loop makes close contact with the L1 and L2 bases, and a glutamate side chain hydrogen bonds with L1. Taken together, these interactions are highly selective for the structure of the k-turn and suggest how conformational selection of the folded k-turn occurs. The molecular recognition of kink-turn structure by the L7Ae class of proteins.,Huang L, Lilley DM RNA. 2013 Oct 22. PMID:24149842[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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