1dk1: Difference between revisions
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==DETAILED VIEW OF A KEY ELEMENT OF THE RIBOSOME ASSEMBLY: CRYSTAL STRUCTURE OF THE S15-RRNA COMPLEX== | ==DETAILED VIEW OF A KEY ELEMENT OF THE RIBOSOME ASSEMBLY: CRYSTAL STRUCTURE OF THE S15-RRNA COMPLEX== | ||
<StructureSection load='1dk1' size='340' side='right' caption='[[1dk1]], [[Resolution|resolution]] 2.80Å' scene=''> | <StructureSection load='1dk1' size='340' side='right' caption='[[1dk1]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr> | ||
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dk1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dk1 OCA], [http://pdbe.org/1dk1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1dk1 RCSB], [http://www.ebi.ac.uk/pdbsum/1dk1 PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1dk1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1dk1 OCA], [http://pdbe.org/1dk1 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1dk1 RCSB], [http://www.ebi.ac.uk/pdbsum/1dk1 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1dk1 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dk/1dk1_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dk/1dk1_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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</div> | </div> | ||
<div class="pdbe-citations 1dk1" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 1dk1" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 11:36, 6 December 2017
DETAILED VIEW OF A KEY ELEMENT OF THE RIBOSOME ASSEMBLY: CRYSTAL STRUCTURE OF THE S15-RRNA COMPLEXDETAILED VIEW OF A KEY ELEMENT OF THE RIBOSOME ASSEMBLY: CRYSTAL STRUCTURE OF THE S15-RRNA COMPLEX
Structural highlights
Function[RS15_THETH] One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it helps nucleate assembly of the platform of the 30S subunit by binding and bridging several RNA helices of the 16S rRNA. Forms an intersubunit bridge (bridge B4) with the 23S rRNA of the 50S subunit in the ribosome (By similarity). 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 PubMedIn bacterial ribosomes, the small (30S) ribosomal subunit is composed of 16S rRNA and 21 distinct proteins. Ribosomal protein S15 is of particular interest because it binds primarily to 16S rRNA and is required for assembly of the small subunit and for intersubunit association, thus representing a key element in the assembly of a whole ribosome. Here we report the 2.8 inverted question mark resolution crystal structure of the highly conserved S15-rRNA complex. Protein S15 interacts in the minor groove with a G-U/G-C motif and a three-way junction. The latter is constrained by a conserved base triple and stacking interactions, and locked into place by magnesium ions and protein side chains, mainly through interactions with the unique three-dimensional geometry of the backbone. The present structure gives insights into the dual role of S15 in ribosome assembly and translational regulation. Crystal structure of the S15-rRNA complex.,Nikulin A, Serganov A, Ennifar E, Tishchenko S, Nevskaya N, Shepard W, Portier C, Garber M, Ehresmann B, Ehresmann C, Nikonov S, Dumas P Nat Struct Biol. 2000 Apr;7(4):273-7. PMID:10742169[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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