3bns
From Proteopedia
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- | [[ | + | ==Crystal Structure of the Homo sapiens Mitochondrial Ribosomal Decoding Site (A1555G mutant, Br-derivative)== |
+ | <StructureSection load='3bns' size='340' side='right' caption='[[3bns]], [[Resolution|resolution]] 1.90Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[3bns]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BNS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3BNS FirstGlance]. <br> | ||
+ | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene><br> | ||
+ | <tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5BU:5-BROMO-URIDINE-5-MONOPHOSPHATE'>5BU</scene></td></tr> | ||
+ | <tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3bnl|3bnl]], [[3bnn|3bnn]], [[3bno|3bno]], [[3bnp|3bnp]], [[3bnq|3bnq]], [[3bnr|3bnr]], [[3bnt|3bnt]]</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=3bns FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bns OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3bns RCSB], [http://www.ebi.ac.uk/pdbsum/3bns PDBsum]</span></td></tr> | ||
+ | <table> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | The A site of the small ribosomal subunit participates in the fidelity of decoding by switching between two states, a resting 'off' state and an active decoding 'on' state. Eight crystal structures of RNA duplexes containing two minimal decoding A sites of the Homo sapiens mitochondrial wild-type, the A1555G mutant or bacteria have been solved. The resting 'off' state of the mitochondrial wild-type A site is surprisingly different from that of the bacterial A site. The mitochondrial A1555G mutant has two types of the 'off' states; one is similar to the mitochondrial wild-type 'off' state and the other is similar to the bacterial 'off' state. Our present results indicate that the dynamics of the A site in bacteria and mitochondria are different, a property probably related to the small number of tRNAs used for decoding in mitochondria. Based on these structures, we propose a hypothesis for the molecular mechanism of non-syndromic hearing loss due to the mitochondrial A1555G mutation. | ||
- | + | The bacterial and mitochondrial ribosomal A-site molecular switches possess different conformational substates.,Kondo J, Westhof E Nucleic Acids Res. 2008 May;36(8):2654-66. Epub 2008 Mar 16. PMID:18346970<ref>PMID:18346970</ref> | |
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- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | == References == | |
- | + | <references/> | |
- | + | __TOC__ | |
- | + | </StructureSection> | |
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[[Category: Kondo, J.]] | [[Category: Kondo, J.]] | ||
[[Category: Westhof, E.]] | [[Category: Westhof, E.]] |
Revision as of 09:41, 21 May 2014
Crystal Structure of the Homo sapiens Mitochondrial Ribosomal Decoding Site (A1555G mutant, Br-derivative)
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Categories: Kondo, J. | Westhof, E. | Decoding site | Ribosome | Rna