1xmq: Difference between revisions

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-[[Image:1xmq.png|left|200px]]
+==Crystal Structure of t6A37-ASLLysUUU AAA-mRNA Bound to the Decoding Center==
+<StructureSection load='1xmq' size='340' side='right' caption='[[1xmq]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1xmq]] is a 23 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XMQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1XMQ FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PAR:PAROMOMYCIN'>PAR</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
+<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=T6A:N-[N-(9-B-D-RIBOFURANOSYLPURIN-6-YL)CARBAMOYL]THREONINE-5-MONOPHOSPHATE'>T6A</scene></td></tr>
+<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1xmo|1xmo]], [[1xnq|1xnq]], [[1xnr|1xnr]], [[1fka|1fka]], [[1ibl|1ibl]]</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=1xmq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xmq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1xmq RCSB], [http://www.ebi.ac.uk/pdbsum/1xmq 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/xm/1xmq_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 natural modification of specific nucleosides in many tRNAs is essential during decoding of mRNA by the ribosome. For example, tRNA(Lys)(UUU) requires the modification N6-threonylcarbamoyladenosine at position 37 (t(6)A37), adjacent and 3' to the anticodon, to bind AAA in the A site of the ribosomal 30S subunit. Moreover, it can only bind both AAA and AAG lysine codons when doubly modified with t(6)A37 and either 5-methylaminomethyluridine or 2-thiouridine at the wobble position (mnm(5)U34 or s(2)U34). Here we report crystal structures of modified tRNA anticodon stem-loops bound to the 30S ribosomal subunit with lysine codons in the A site. These structures allow the rationalization of how modifications in the anticodon loop enable decoding of both lysine codons AAA and AAG.
-{{STRUCTURE_1xmq|  PDB=1xmq  |  SCENE=  }}
+The role of modifications in codon discrimination by tRNA(Lys)UUU.,Murphy FV 4th, Ramakrishnan V, Malkiewicz A, Agris PF Nat Struct Mol Biol. 2004 Dec;11(12):1186-91. Epub 2004 Nov 21. PMID:15558052<ref>PMID:15558052</ref>
-===Crystal Structure of t6A37-ASLLysUUU AAA-mRNA Bound to the Decoding Center===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_15558052}}
-==About this Structure==
-[[1xmq]] is a 23 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XMQ OCA].
 ==See Also==
-*[[Ribosomal protein S10|Ribosomal protein S10]]
-*[[Ribosomal protein S11|Ribosomal protein S11]]
-*[[Ribosomal protein S12|Ribosomal protein S12]]
-*[[Ribosomal protein S13|Ribosomal protein S13]]
-*[[Ribosomal protein S14|Ribosomal protein S14]]
-*[[Ribosomal protein S15|Ribosomal protein S15]]
-*[[Ribosomal protein S16|Ribosomal protein S16]]
-*[[Ribosomal protein S17|Ribosomal protein S17]]
-*[[Ribosomal protein S18|Ribosomal protein S18]]
-*[[Ribosomal protein S19|Ribosomal protein S19]]
-*[[Ribosomal protein S2|Ribosomal protein S2]]
-*[[Ribosomal protein S20|Ribosomal protein S20]]
-*[[Ribosomal protein S3|Ribosomal protein S3]]
-*[[Ribosomal protein S4|Ribosomal protein S4]]
-*[[Ribosomal protein S5|Ribosomal protein S5]]
-*[[Ribosomal protein S6|Ribosomal protein S6]]
-*[[Ribosomal protein S7|Ribosomal protein S7]]
-*[[Ribosomal protein S8|Ribosomal protein S8]]
-*[[Ribosomal protein S9|Ribosomal protein S9]]
 *[[Ribosomal protein THX|Ribosomal protein THX]]
+*[[Ribosome 3D structures|Ribosome 3D structures]]
-==Reference==
+== References ==
-<ref group="xtra">PMID:015558052</ref><references group="xtra"/>
+<references/>
+__TOC__
+</StructureSection>
 [[Category: Thermus thermophilus]]
 [[Category: Agris, P F.]]