6mu4: Difference between revisions
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New page: '''Unreleased structure''' The entry 6mu4 is ON HOLD Authors: Description: Category: Unreleased Structures |
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==Bst DNA polymerase I FANA/DNA binary complex== | |||
<StructureSection load='6mu4' size='340' side='right'caption='[[6mu4]], [[Resolution|resolution]] 1.62Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6mu4]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Geobacillus_stearothermophilus Geobacillus stearothermophilus] and [https://en.wikipedia.org/wiki/Synthetic_construct Synthetic construct]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6MU4 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6MU4 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]] 1.62Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A5L:9-(2-DEOXY-2-FLUORO-5-O-PHOSPHONO-BETA-D-ARABINOFURANOSYL)-9H-PURIN-6-AMINE'>A5L</scene>, <scene name='pdbligand=CFL:4-AMINO-1-(2-DEOXY-2-FLUORO-5-O-PHOSPHONO-BETA-D-ARABINOFURANOSYL)PYRIMIDIN-2(1H)-ONE'>CFL</scene>, <scene name='pdbligand=GFL:2-AMINO-9-(2-DEOXY-2-FLUORO-5-O-PHOSPHONO-BETA-D-ARABINOFURANOSYL)-1,9-DIHYDRO-6H-PURIN-6-ONE'>GFL</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=UF2:1-(2-DEOXY-2-FLUORO-5-O-PHOSPHONO-BETA-D-ARABINOFURANOSYL)PYRIMIDINE-2,4(1H,3H)-DIONE'>UF2</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=6mu4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6mu4 OCA], [https://pdbe.org/6mu4 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6mu4 RCSB], [https://www.ebi.ac.uk/pdbsum/6mu4 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6mu4 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/E1C9K5_GEOSE E1C9K5_GEOSE] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Replicative DNA polymerases are highly efficient enzymes that maintain stringent geometric control over shape and orientation of the template and incoming nucleoside triphosphate. In a surprising twist to this paradigm, a naturally occurring bacterial DNA polymerase I member isolated from Geobacillus stearothermophilus (Bst) exhibits an innate ability to reverse transcribe RNA and other synthetic congeners (XNAs) into DNA. This observation raises the interesting question of how a replicative DNA polymerase is able to recognize templates of diverse chemical composition. Here, we present crystal structures of natural Bst DNA polymerase that capture the post-translocated product of DNA synthesis on templates composed entirely of 2'-deoxy-2'-fluoro-beta-d-arabino nucleic acid (FANA) and alpha-l-threofuranosyl nucleic acid (TNA). Analysis of the enzyme active site reveals the importance of structural plasticity as a possible mechanism for XNA-dependent DNA synthesis and provides insights into the construction of variants with improved activity. | |||
Crystal structures of a natural DNA polymerase that functions as an XNA reverse transcriptase.,Jackson LN, Chim N, Shi C, Chaput JC Nucleic Acids Res. 2019 Jun 6. pii: 5512092. doi: 10.1093/nar/gkz513. PMID:31170294<ref>PMID:31170294</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 6mu4" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[DNA polymerase 3D structures|DNA polymerase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Geobacillus stearothermophilus]] | |||
[[Category: Large Structures]] | |||
[[Category: Synthetic construct]] | |||
[[Category: Chaput JC]] | |||
[[Category: Chim N]] | |||
[[Category: Jackson LN]] | |||
Latest revision as of 06:38, 11 October 2023
Bst DNA polymerase I FANA/DNA binary complex
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