5vu5: Difference between revisions
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<StructureSection load='5vu5' size='340' side='right'caption='[[5vu5]], [[Resolution|resolution]] 2.80Å' scene=''> | <StructureSection load='5vu5' size='340' side='right'caption='[[5vu5]], [[Resolution|resolution]] 2.80Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5vu5]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[5vu5]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermococcus_kodakarensis Thermococcus kodakarensis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VU5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VU5 FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8Å</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=5vu5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vu5 OCA], [https://pdbe.org/5vu5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vu5 RCSB], [https://www.ebi.ac.uk/pdbsum/5vu5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vu5 ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/D0VWU9_THEKO D0VWU9_THEKO] | |||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: | [[Category: Thermococcus kodakarensis]] | ||
[[Category: | [[Category: Chaput JC]] | ||
[[Category: | [[Category: Chim N]] | ||
Latest revision as of 16:58, 4 October 2023
TNA polymerase, apoTNA polymerase, apo
Structural highlights
FunctionPublication Abstract from PubMedDarwinian evolution experiments carried out on xeno-nucleic acid (XNA) polymers require engineered polymerases that can faithfully and efficiently copy genetic information back and forth between DNA and XNA. However, current XNA polymerases function with inferior activity relative to their natural counterparts. Here, we report five X-ray crystal structures that illustrate the pathway by which alpha-(L)-threofuranosyl nucleic acid (TNA) triphosphates are selected and extended in a template-dependent manner using a laboratory-evolved polymerase known as Kod-RI. Structural comparison of the apo, binary, open and closed ternary, and translocated product detail an ensemble of interactions and conformational changes required to promote TNA synthesis. Close inspection of the active site in the closed ternary structure reveals a sub-optimal binding geometry that explains the slow rate of catalysis. This key piece of information, which is missing for all naturally occurring archaeal DNA polymerases, provides a framework for engineering new TNA polymerase variants. Structural basis for TNA synthesis by an engineered TNA polymerase.,Chim N, Shi C, Sau SP, Nikoomanzar A, Chaput JC Nat Commun. 2017 Nov 27;8(1):1810. doi: 10.1038/s41467-017-02014-0. PMID:29180809[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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