8oit
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | The entry | + | ==39S human mitochondrial large ribosomal subunit with mtRF1 and P-site tRNA== |
| + | <StructureSection load='8oit' size='340' side='right'caption='[[8oit]], [[Resolution|resolution]] 2.90Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[8oit]] is a 15 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8OIT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8OIT FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1MA:6-HYDRO-1-METHYLADENOSINE-5-MONOPHOSPHATE'>1MA</scene>, <scene name='pdbligand=2MG:2N-METHYLGUANOSINE-5-MONOPHOSPHATE'>2MG</scene>, <scene name='pdbligand=AYA:N-ACETYLALANINE'>AYA</scene>, <scene name='pdbligand=FS2:FE-S-O+HYBRID+CLUSTER'>FS2</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=MET:METHIONINE'>MET</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=OMG:O2-METHYLGUANOSINE-5-MONOPHOSPHATE'>OMG</scene>, <scene name='pdbligand=OMU:O2-METHYLURIDINE+5-MONOPHOSPHATE'>OMU</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=RSQ:5-FORMYLCYTIDINE+5-(DIHYDROGEN+PHOSPHATE)'>RSQ</scene>, <scene name='pdbligand=SAC:N-ACETYL-SERINE'>SAC</scene>, <scene name='pdbligand=THC:N-METHYLCARBONYLTHREONINE'>THC</scene>, <scene name='pdbligand=VAL:VALINE'>VAL</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=8oit FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8oit OCA], [https://pdbe.org/8oit PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8oit RCSB], [https://www.ebi.ac.uk/pdbsum/8oit PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8oit ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Disease == | ||
| + | [https://www.uniprot.org/uniprot/RM12_HUMAN RM12_HUMAN] The disease may be caused by variants affecting the gene represented in this entry. | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RM12_HUMAN RM12_HUMAN] As a component of the mitochondrial large ribosomal subunit, it plays a role in mitochondrial translation (PubMed:23603806). Associates with mitochondrial RNA polymerase to activate transcription.<ref>PMID:22003127</ref> <ref>PMID:23603806</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | The genetic code that specifies the identity of amino acids incorporated into proteins during protein synthesis is almost universally conserved. Mitochondrial genomes feature deviations from the standard genetic code, including the reassignment of two arginine codons to stop codons. The protein required for translation termination at these noncanonical stop codons to release the newly synthesized polypeptides is not currently known. In this study, we used gene editing and ribosomal profiling in combination with cryo-electron microscopy to establish that mitochondrial release factor 1 (mtRF1) detects noncanonical stop codons in human mitochondria by a previously unknown mechanism of codon recognition. We discovered that binding of mtRF1 to the decoding center of the ribosome stabilizes a highly unusual conformation in the messenger RNA in which the ribosomal RNA participates in specific recognition of the noncanonical stop codons. | ||
| - | + | Molecular basis of translation termination at noncanonical stop codons in human mitochondria.,Saurer M, Leibundgut M, Nadimpalli HP, Scaiola A, Schonhut T, Lee RG, Siira SJ, Rackham O, Dreos R, Lenarcic T, Kummer E, Gatfield D, Filipovska A, Ban N Science. 2023 May 5;380(6644):531-536. doi: 10.1126/science.adf9890. Epub 2023 , May 4. PMID:37141370<ref>PMID:37141370</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 8oit" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Ban N]] | ||
| + | [[Category: Leibundgut M]] | ||
| + | [[Category: Saurer M]] | ||
| + | [[Category: Scaiola A]] | ||
| + | [[Category: Schoenhut T]] | ||
Revision as of 08:21, 14 June 2023
39S human mitochondrial large ribosomal subunit with mtRF1 and P-site tRNA
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