View source for 4gv6


==Structures of Lassa and Tacaribe viral nucleoproteins with or without 5 triphosphate dsRNA substrate reveal a unique 3 -5 exoribonuclease mechanism to suppress type I interferon production==
<StructureSection load='4gv6' size='340' side='right'caption='[[4gv6]], [[Resolution|resolution]] 1.98&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4gv6]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Lassa_virus_Josiah Lassa virus Josiah]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4GV6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4GV6 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]] 1.98&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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=4gv6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4gv6 OCA], [https://pdbe.org/4gv6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4gv6 RCSB], [https://www.ebi.ac.uk/pdbsum/4gv6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4gv6 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/NCAP_LASSJ NCAP_LASSJ] Encapsidates the genome, protecting it from nucleases. The encapsidated genomic RNA is termed the nucleocapsid (NC). Serves as template for viral transcription and replication. The increased presence of protein N in host cell does not seem to trigger the switch from transcription to replication as observed in other negative strain RNA viruses. Disables the host innate defense by interfering with beta interferon (IFN-beta) production. Strongly inhibits the nuclear translocation of IRF3, a protein involved in IFN activation pathway. Also inhibits the activation of IFN-beta and IRF3-dependent promoters (By similarity).

==See Also==
*[[Nucleoprotein 3D structures|Nucleoprotein 3D structures]]
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Lassa virus Josiah]]
[[Category: Dong C]]
[[Category: Dong H]]
[[Category: Huang Q]]
[[Category: Jiang X]]
[[Category: Liang Y]]
[[Category: Ly H]]
[[Category: Wang W]]