1fn9: Difference between revisions
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==CRYSTAL STRUCTURE OF THE REOVIRUS OUTER CAPSID PROTEIN SIGMA 3== | |||
<StructureSection load='1fn9' size='340' side='right'caption='[[1fn9]], [[Resolution|resolution]] 1.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1fn9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Reovirus_sp. Reovirus sp.]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FN9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FN9 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]] 1.8Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><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=1fn9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1fn9 OCA], [https://pdbe.org/1fn9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1fn9 RCSB], [https://www.ebi.ac.uk/pdbsum/1fn9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1fn9 ProSAT]</span></td></tr> | ||
[[1fn9]] is a 2 chain structure with sequence from [ | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/SIGM3_REOVD SIGM3_REOVD] Stimulates translation by blocking the activation of the dsRNA-dependent protein kinase EIF2AK2/PKR, thereby inhibiting the host interferon response. Sigma3 prevents the activation of EIF2AK2 by competing with the kinase for dsRNA-binding.<ref>PMID:9268168</ref> The viral outer shell polypeptides, of which sigma-3 is one, impose structural constraints that prevent elongation of nascent transcripts by the RNA-dependent RNA polymerase lambda-3. | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fn/1fn9_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1fn9 ConSurf]. | |||
<div style="clear:both"></div> | |||
==See Also== | ==See Also== | ||
*[[Virus coat | *[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]] | ||
== References == | |||
== | <references/> | ||
< | __TOC__ | ||
[[Category: Reovirus sp | </StructureSection> | ||
[[Category: Harrison | [[Category: Large Structures]] | ||
[[Category: Jane-Valbuena | [[Category: Reovirus sp]] | ||
[[Category: Nibert | [[Category: Harrison SC]] | ||
[[Category: Olland | [[Category: Jane-Valbuena J]] | ||
[[Category: Schiff | [[Category: Nibert ML]] | ||
[[Category: Olland AM]] | |||
[[Category: Schiff LA]] | |||
Latest revision as of 10:16, 7 February 2024
CRYSTAL STRUCTURE OF THE REOVIRUS OUTER CAPSID PROTEIN SIGMA 3CRYSTAL STRUCTURE OF THE REOVIRUS OUTER CAPSID PROTEIN SIGMA 3
Structural highlights
FunctionSIGM3_REOVD Stimulates translation by blocking the activation of the dsRNA-dependent protein kinase EIF2AK2/PKR, thereby inhibiting the host interferon response. Sigma3 prevents the activation of EIF2AK2 by competing with the kinase for dsRNA-binding.[1] The viral outer shell polypeptides, of which sigma-3 is one, impose structural constraints that prevent elongation of nascent transcripts by the RNA-dependent RNA polymerase lambda-3. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. See AlsoReferences
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