1qu2: Difference between revisions

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<StructureSection load='1qu2' size='340' side='right'caption='[[1qu2]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
<StructureSection load='1qu2' size='340' side='right'caption='[[1qu2]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1qu2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ ] and [https://en.wikipedia.org/wiki/"micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QU2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QU2 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1qu2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QU2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QU2 FirstGlance]. <br>
</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=MRC:MUPIROCIN'>MRC</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Isoleucine--tRNA_ligase Isoleucine--tRNA ligase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.5 6.1.1.5] </span></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=MRC:MUPIROCIN'>MRC</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=1qu2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qu2 OCA], [https://pdbe.org/1qu2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qu2 RCSB], [https://www.ebi.ac.uk/pdbsum/1qu2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qu2 ProSAT]</span></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=1qu2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qu2 OCA], [https://pdbe.org/1qu2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qu2 RCSB], [https://www.ebi.ac.uk/pdbsum/1qu2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qu2 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/SYI1_STAAU SYI1_STAAU]] Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile) (By similarity).  
[https://www.uniprot.org/uniprot/SYI1_STAAU SYI1_STAAU] Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile) (By similarity).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Isoleucine--tRNA ligase]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Silvian, L F]]
[[Category: Staphylococcus aureus]]
[[Category: Steitz, T A]]
[[Category: Silvian LF]]
[[Category: Wang, J]]
[[Category: Steitz TA]]
[[Category: Double-sieve]]
[[Category: Wang J]]
[[Category: Editing trna synthetase]]
[[Category: Ligase-rna complex]]
[[Category: Metal ion]]
[[Category: Protein-rna complex]]

Latest revision as of 05:57, 23 August 2023

INSIGHTS INTO EDITING FROM AN ILE-TRNA SYNTHETASE STRUCTURE WITH TRNA(ILE) AND MUPIROCIN

1qu2, resolution 2.20Å

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