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2uxd

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{{Seed}}
 
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[[Image:2uxd.png|left|200px]]
 
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==Crystal structure of an extended tRNA anticodon stem loop in complex with its cognate mRNA CGGG in the context of the Thermus thermophilus 30S subunit.==
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The line below this paragraph, containing "STRUCTURE_2uxd", creates the "Structure Box" on the page.
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<StructureSection load='2uxd' size='340' side='right'caption='[[2uxd]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2uxd]] is a 23 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UXD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2UXD FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PAR:PAROMOMYCIN'>PAR</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1fjg|1fjg]], [[1gix|1gix]], [[1i94|1i94]], [[1i95|1i95]], [[1i96|1i96]], [[1i97|1i97]], [[1ibk|1ibk]], [[1ibl|1ibl]], [[1ibm|1ibm]], [[1j5e|1j5e]], [[1jgo|1jgo]], [[1jgp|1jgp]], [[1jgq|1jgq]], [[1l1u|1l1u]], [[1n32|1n32]], [[1n33|1n33]], [[1n34|1n34]], [[1n36|1n36]], [[1pns|1pns]], [[1pnx|1pnx]], [[1xmo|1xmo]], [[1xmq|1xmq]], [[1xnq|1xnq]], [[1xnr|1xnr]], [[1yl4|1yl4]], [[2b64|2b64]], [[2b9m|2b9m]], [[2b9o|2b9o]], [[2f4v|2f4v]], [[2j00|2j00]], [[2j02|2j02]], [[2uu9|2uu9]], [[2uua|2uua]], [[2uub|2uub]], [[2uuc|2uuc]], [[2uxb|2uxb]], [[2uxc|2uxc]]</div></td></tr>
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{{STRUCTURE_2uxd| PDB=2uxd | SCENE= }}
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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=2uxd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uxd OCA], [https://pdbe.org/2uxd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2uxd RCSB], [https://www.ebi.ac.uk/pdbsum/2uxd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2uxd ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[https://www.uniprot.org/uniprot/RS16_THET8 RS16_THET8]] Binds to the lower part of the body of the 30S subunit, where it stabilizes two of its domains.[HAMAP-Rule:MF_00385] [[https://www.uniprot.org/uniprot/RS6_THET8 RS6_THET8]] Located on the outer edge of the platform on the body of the 30S subunit.[HAMAP-Rule:MF_00360] [[https://www.uniprot.org/uniprot/RS9_THET8 RS9_THET8]] Part of the top of the head of the 30S subunit. The C-terminal region penetrates the head emerging in the P-site where it contacts tRNA.[HAMAP-Rule:MF_00532_B] [[https://www.uniprot.org/uniprot/RS8_THET8 RS8_THET8]] 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 central domain. The combined cluster of proteins S8, S12 and S17 appears to hold together the shoulder and platform of the 30S subunit.[HAMAP-Rule:MF_01302_B]
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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/ux/2uxd_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=2uxd ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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During translation, some +1 frameshift mRNA sites are decoded by frameshift suppressor tRNAs that contain an extra base in their anticodon loops. Similarly engineered tRNAs have been used to insert nonnatural amino acids into proteins. Here, we report crystal structures of two anticodon stem-loops (ASLs) from tRNAs known to facilitate +1 frameshifting bound to the 30S ribosomal subunit with their cognate mRNAs. ASL(CCCG) and ASL(ACCC) (5'-3' nomenclature) form unpredicted anticodon-codon interactions where the anticodon base 34 at the wobble position contacts either the fourth codon base or the third and fourth codon bases. In addition, we report the structure of ASL(ACGA) bound to the 30S ribosomal subunit with its cognate mRNA. The tRNA containing this ASL was previously shown to be unable to facilitate +1 frameshifting in competition with normal tRNAs (Hohsaka et al. 2001), and interestingly, it displays a normal anticodon-codon interaction. These structures show that the expanded anticodon loop of +1 frameshift promoting tRNAs are flexible enough to adopt conformations that allow three bases of the anticodon to span four bases of the mRNA. Therefore it appears that normal triplet pairing is not an absolute constraint of the decoding center.
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===CRYSTAL STRUCTURE OF AN EXTENDED TRNA ANTICODON STEM LOOP IN COMPLEX WITH ITS COGNATE MRNA CGGG IN THE CONTEXT OF THE THERMUS THERMOPHILUS 30S SUBUNIT.===
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Structures of tRNAs with an expanded anticodon loop in the decoding center of the 30S ribosomal subunit.,Dunham CM, Selmer M, Phelps SS, Kelley AC, Suzuki T, Joseph S, Ramakrishnan V RNA. 2007 Jun;13(6):817-23. Epub 2007 Apr 6. PMID:17416634<ref>PMID:17416634</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 2uxd" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_17416634}}, adds the Publication Abstract to the page
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*[[Ribosomal protein THX 3D structures|Ribosomal protein THX 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 17416634 is the PubMed ID number.
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*[[Ribosome 3D structures|Ribosome 3D structures]]
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== References ==
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{{ABSTRACT_PUBMED_17416634}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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2UXD is a 23 chains structure of sequences 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=2UXD OCA].
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[[Category: Large Structures]]
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==Reference==
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<ref group="xtra">PMID:17416634</ref><references group="xtra"/>
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[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
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[[Category: Dunham, C M.]]
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[[Category: Dunham, C M]]
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[[Category: Joseph, S.]]
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[[Category: Joseph, S]]
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[[Category: Kelley, A C.]]
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[[Category: Kelley, A C]]
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[[Category: Phelps, S S.]]
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[[Category: Phelps, S S]]
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[[Category: Ramakrishnan, V.]]
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[[Category: Ramakrishnan, V]]
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[[Category: Selmer, M.]]
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[[Category: Selmer, M]]
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[[Category: Suzuki, T.]]
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[[Category: Suzuki, T]]
[[Category: 30s ribosomal subunit]]
[[Category: 30s ribosomal subunit]]
[[Category: A site]]
[[Category: A site]]
[[Category: Anticodon]]
[[Category: Anticodon]]
[[Category: Codon]]
[[Category: Codon]]
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[[Category: Coiled coil]]
 
[[Category: Decoding]]
[[Category: Decoding]]
[[Category: Frameshift]]
[[Category: Frameshift]]
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[[Category: Ribosomal protein]]
[[Category: Ribosomal protein]]
[[Category: Ribosome]]
[[Category: Ribosome]]
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[[Category: Rna- binding]]
 
[[Category: Rna-binding]]
[[Category: Rna-binding]]
[[Category: Rrna-binding]]
[[Category: Rrna-binding]]
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[[Category: Trna]]
[[Category: Trna]]
[[Category: Trna-binding]]
[[Category: Trna-binding]]
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[[Category: Zinc]]
 
[[Category: Zinc-finger]]
[[Category: Zinc-finger]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Feb 16 21:17:04 2009''
 

Current revision

Crystal structure of an extended tRNA anticodon stem loop in complex with its cognate mRNA CGGG in the context of the Thermus thermophilus 30S subunit.

PDB ID 2uxd

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