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<SX load='3iym' size='340' side='right' viewer='molstar' caption='[[3iym]], [[Resolution|resolution]] 4.70&Aring;' scene=''>
<SX load='3iym' size='340' side='right' viewer='molstar' caption='[[3iym]], [[Resolution|resolution]] 4.70&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3iym]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Penicillium_stoloniferum_virus_s Penicillium stoloniferum virus s]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IYM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IYM FirstGlance]. <br>
<table><tr><td colspan='2'>[[3iym]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Penicillium_stoloniferum_virus_S Penicillium stoloniferum virus S]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IYM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IYM FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3es5|3es5]]</div></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.7&#8491;</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=3iym FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iym OCA], [https://pdbe.org/3iym PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3iym RCSB], [https://www.ebi.ac.uk/pdbsum/3iym PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3iym ProSAT]</span></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=3iym FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iym OCA], [https://pdbe.org/3iym PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3iym RCSB], [https://www.ebi.ac.uk/pdbsum/3iym PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3iym ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q6YDQ6_9VIRU Q6YDQ6_9VIRU]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=3iym ConSurf].
</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=3iym ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Most dsRNA viruses have a genome-enclosing capsid that comprises 120 copies of a single coat protein (CP). These 120 CP subunits are arranged as asymmetrical dimers that surround the icosahedral fivefold axes, forming pentamers of dimers that are thought to be assembly intermediates. This scheme is violated, however, in recent structures of two dsRNA viruses, a fungal virus from family Partitiviridae and a rabbit virus from family Picobirnaviridae, both of which have 120 CP subunits organized as dimers of quasisymmetrical dimers. In this study, we report the CP backbone trace of a second fungal partitivirus, determined in this case by electron cryomicroscopy and homology modeling. This virus also exhibits quasisymmetrical CP dimers that are connected by prominent surface arches and stabilized by domain swapping between the two CP subunits. The CP fold is dominated by alpha-helices, although beta-strands mediate several important contacts. A dimer-of-dimers assembly intermediate is again implicated. The disordered N-terminal tail of each CP subunit protrudes into the particle interior and likely interacts with the genome during packaging and/or transcription. These results broaden our understanding of conserved and variable aspects of partitivirus structure and reflect the growing use of electron cryomicroscopy for atomic modeling of protein folds.
Backbone trace of partitivirus capsid protein from electron cryomicroscopy and homology modeling.,Tang J, Pan J, Havens WM, Ochoa WF, Guu TS, Ghabrial SA, Nibert ML, Tao YJ, Baker TS Biophys J. 2010 Jul 21;99(2):685-94. PMID:20643089<ref>PMID:20643089</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3iym" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]]
*[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]]
== References ==
<references/>
__TOC__
__TOC__
</SX>
</SX>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Penicillium stoloniferum virus s]]
[[Category: Penicillium stoloniferum virus S]]
[[Category: Baker, T S]]
[[Category: Baker TS]]
[[Category: Ghabrial, S A]]
[[Category: Ghabrial SA]]
[[Category: Guu, T S.Y]]
[[Category: Guu TSY]]
[[Category: Havens, W F]]
[[Category: Havens WF]]
[[Category: Li, H]]
[[Category: Li H]]
[[Category: Nibert, M L]]
[[Category: Nibert ML]]
[[Category: Ochoa, W F]]
[[Category: Ochoa WF]]
[[Category: Pan, J]]
[[Category: Pan J]]
[[Category: Sinkovits, R S]]
[[Category: Sinkovits RS]]
[[Category: Tang, J]]
[[Category: Tang J]]
[[Category: Tao, J Y]]
[[Category: Tao JY]]
[[Category: Dsrna virus]]
[[Category: Icosahedral virus]]
[[Category: Partitivirus]]
[[Category: Psv-]]
[[Category: Virus]]

Latest revision as of 10:07, 21 February 2024

Backbone Trace of the Capsid Protein Dimer of a Fungal Partitivirus from Electron Cryomicroscopy and Homology Modeling

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