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2az0

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==Flock House virus B2-dsRNA Complex (P212121)==
==Flock House virus B2-dsRNA Complex (P212121)==
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<StructureSection load='2az0' size='340' side='right' caption='[[2az0]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
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<StructureSection load='2az0' size='340' side='right'caption='[[2az0]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2az0]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Fhv Fhv]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AZ0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2AZ0 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2az0]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Flock_House_virus Flock House virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AZ0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AZ0 FirstGlance]. <br>
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</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5BU:5-BROMO-URIDINE-5-MONOPHOSPHATE'>5BU</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2az2|2az2]]</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5BU:5-BROMO-URIDINE-5-MONOPHOSPHATE'>5BU</scene></td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">B2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=12287 FHV])</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2az0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2az0 OCA], [https://pdbe.org/2az0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2az0 RCSB], [https://www.ebi.ac.uk/pdbsum/2az0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2az0 ProSAT]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2az0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2az0 OCA], [http://pdbe.org/2az0 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2az0 RCSB], [http://www.ebi.ac.uk/pdbsum/2az0 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2az0 ProSAT]</span></td></tr>
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</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/B2_FHV B2_FHV]] Binds double-strand RNA (dsRNA) with high affinity. Suppresses the host RNA silencing-based antiviral response.<ref>PMID:14745017</ref> <ref>PMID:16228003</ref>
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[https://www.uniprot.org/uniprot/B2_FHV B2_FHV] Binds double-strand RNA (dsRNA) with high affinity. Suppresses the host RNA silencing-based antiviral response.<ref>PMID:14745017</ref> <ref>PMID:16228003</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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As a counter-defense against antiviral RNA silencing during infection, the insect Flock House virus (FHV) expresses the silencing suppressor protein B2. Biochemical experiments show that B2 binds to double-stranded RNA (dsRNA) without regard to length and inhibits cleavage of dsRNA by Dicer in vitro. A cocrystal structure reveals that a B2 dimer forms a four-helix bundle that binds to one face of an A-form RNA duplex independently of sequence. These results suggest that B2 blocks both cleavage of the FHV genome by Dicer and incorporation of FHV small interfering RNAs into the RNA-induced silencing complex.
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Dual modes of RNA-silencing suppression by Flock House virus protein B2.,Chao JA, Lee JH, Chapados BR, Debler EW, Schneemann A, Williamson JR Nat Struct Mol Biol. 2005 Nov;12(11):952-7. PMID:16228003<ref>PMID:16228003</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 2az0" style="background-color:#fffaf0;"></div>
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==See Also==
==See Also==
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*[[Suppression of RNA Silencing by Viruses|Suppression of RNA Silencing by Viruses]]
*[[Suppression of RNA Silencing by Viruses|Suppression of RNA Silencing by Viruses]]
*[[Tomato aspermy virus protein 2b Suppression of RNA Silencing|Tomato aspermy virus protein 2b Suppression of RNA Silencing]]
*[[Tomato aspermy virus protein 2b Suppression of RNA Silencing|Tomato aspermy virus protein 2b Suppression of RNA Silencing]]
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*[[User:Wayne Decatur/Flock house virus B2 protein Suppression of RNA Silencing|User:Wayne Decatur/Flock house virus B2 protein Suppression of RNA Silencing]]
 
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*[[User:Wayne Decatur/Plant Viral Protein p19 Suppression of RNA Silencing|User:Wayne Decatur/Plant Viral Protein p19 Suppression of RNA Silencing]]
 
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*[[User:Wayne Decatur/Suppression of RNA Silencing by Viruses|User:Wayne Decatur/Suppression of RNA Silencing by Viruses]]
 
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*[[User:Wayne Decatur/Tomato aspermy virus protein 2b Suppression of RNA Silencing|User:Wayne Decatur/Tomato aspermy virus protein 2b Suppression of RNA Silencing]]
 
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Fhv]]
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[[Category: Flock House virus]]
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[[Category: Chao, J A]]
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[[Category: Large Structures]]
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[[Category: Chapados, B R]]
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[[Category: Chao JA]]
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[[Category: Debler, E W]]
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[[Category: Chapados BR]]
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[[Category: Lee, J H]]
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[[Category: Debler EW]]
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[[Category: Schneemann, A]]
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[[Category: Lee JH]]
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[[Category: Williamson, J R]]
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[[Category: Schneemann A]]
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[[Category: Four-helix bundle]]
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[[Category: Williamson JR]]
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[[Category: Protein-rna complex]]
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[[Category: Viral protein-rna complex]]
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Current revision

Flock House virus B2-dsRNA Complex (P212121)

PDB ID 2az0

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