4jv5: Difference between revisions

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'''Unreleased structure'''


The entry 4jv5 is ON HOLD
==Crystal structures of pseudouridinilated stop codons with ASLs==
<StructureSection load='4jv5' size='340' side='right'caption='[[4jv5]], [[Resolution|resolution]] 3.16&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4jv5]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB8 Thermus thermophilus HB8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JV5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4JV5 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.162&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4jv5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jv5 OCA], [https://pdbe.org/4jv5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4jv5 RCSB], [https://www.ebi.ac.uk/pdbsum/4jv5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4jv5 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RS2_THET8 RS2_THET8] Spans the head-body hinge region of the 30S subunit. Is loosely associated with the 30S subunit.[HAMAP-Rule:MF_00291_B]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
During normal translation, the binding of a release factor to one of the three stop codons (UGA, UAA or UAG) results in the termination of protein synthesis. However, modification of the initial uridine to a pseudouridine (Psi) allows efficient recognition and read-through of these stop codons by a transfer RNA (tRNA), although it requires the formation of two normally forbidden purine-purine base pairs. Here we determined the crystal structure at 3.1 A resolution of the 30S ribosomal subunit in complex with the anticodon stem loop of tRNASer bound to the PsiAG stop codon in the A site. The PsiA base pair at the first position is accompanied by the formation of purine-purine base pairs at the second and third positions of the codon, which show an unusual Watson-Crick/Hoogsteen geometry. The structure shows a previously unsuspected ability of the ribosomal decoding centre to accommodate non-canonical base pairs.


Authors: Fernandez, I.S., Ng, C.L., Kelley, A.C., Guowei, W., Yu, Y.T., Ramakrishnan, V.
Unusual base pairing during the decoding of a stop codon by the ribosome.,Fernandez IS, Ng CL, Kelley AC, Wu G, Yu YT, Ramakrishnan V Nature. 2013 Jun 30. doi: 10.1038/nature12302. PMID:23812587<ref>PMID:23812587</ref>


Description:
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4jv5" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Ribosomal protein THX 3D structures|Ribosomal protein THX 3D structures]]
*[[Ribosome 3D structures|Ribosome 3D structures]]
*[[Transfer RNA (tRNA)|Transfer RNA (tRNA)]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Thermus thermophilus HB8]]
[[Category: Fernandez IS]]
[[Category: Guowei W]]
[[Category: Kelley AC]]
[[Category: Ng CL]]
[[Category: Ramakrishnan V]]
[[Category: Yu YT]]

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