View source for 5tsn


==Crystal structures of Norwalk virus polymerase bound to an RNA primer-template duplex==
<StructureSection load='5tsn' size='340' side='right'caption='[[5tsn]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5tsn]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Norwalk_virus Norwalk virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5TSN OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5TSN 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]] 2.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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=5tsn FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5tsn OCA], [https://pdbe.org/5tsn PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5tsn RCSB], [https://www.ebi.ac.uk/pdbsum/5tsn PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5tsn ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q70ET3_9CALI Q70ET3_9CALI] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Norovirus (NV) RNA-dependent RNA polymerase (RdRP) is essential for replicating the genome of the virus, which makes this enzyme a key target for the development of antiviral agents against NV gastroenteritis. In this work, a complex of NV RdRP bound to manganese ions and an RNA primer-template duplex was investigated using X-ray crystallography and hybrid quantum chemical/molecular mechanical simulations. Experimentally, the complex crystallized in a tetragonal crystal form. The nature of the primer/template duplex binding in the resulting structure indicates that the complex is a closed back-tracked state of the enzyme, in which the 3'-end of the primer occupies the position expected for the post-incorporated nucleotide before translocation. Computationally, it is found that the complex can accept a range of divalent metal cations without marked distortions in the active site structure. The highest binding energy is for copper, followed closely by manganese and iron, and then by zinc, nickel and cobalt. This article is protected by copyright. All rights reserved.

Norovirus RNA-dependent RNA polymerase: A computational study of metal-binding preferences.,Shaik MM, Bhattacharjee N, Feliks M, Ng KK, Field MJ Proteins. 2017 Apr 6. doi: 10.1002/prot.25304. PMID:28383118<ref>PMID:28383118</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5tsn" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Norwalk virus]]
[[Category: Ng KK]]
[[Category: Shaik MM]]