6ab5: Difference between revisions

<StructureSection load='6ab5' size='340' side='right'caption='[[6ab5]], [[Resolution|resolution]] 3.70&Aring;' scene=''>

<table><tr><td colspan='2'>[[6ab5]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6AB5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6AB5 FirstGlance]. <br>

</td></tr><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=6ab5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ab5 OCA], [http://pdbe.org/6ab5 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6ab5 RCSB], [http://www.ebi.ac.uk/pdbsum/6ab5 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6ab5 ProSAT]</span></td></tr>

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Shrimp nodaviruses, including Penaeus vannamei (PvNV) and Macrobrachium rosenbergii nodaviruses (MrNV), cause white-tail disease in shrimps, with high mortality. The viral capsid structure determines viral assembly and host specificity during infections. Here, we show cryo-EM structures of T = 3 and T = 1 PvNV-like particles (PvNV-LPs), crystal structures of the protrusion-domains (P-domains) of PvNV and MrNV, and the crystal structure of the N-ARM-PvNV shell-domain (S-domain) in T = 1 subviral particles. The capsid protein of PvNV reveals five domains: the P-domain with a new jelly-roll structure forming cuboid-like spikes; the jelly-roll S-domain with two calcium ions; the linker between the S- and P-domains exhibiting new cross and parallel conformations; the N-arm interacting with nucleotides organized along icosahedral two-fold axes; and a disordered region comprising the basic N-terminal arginine-rich motif (N-ARM) interacting with RNA. The N-ARM controls T = 3 and T = 1 assemblies. Increasing the N/C-termini flexibility leads to particle polymorphism. Linker flexibility may influence the dimeric-spike arrangement.

 

The atomic structures of shrimp nodaviruses reveal new dimeric spike structures and particle polymorphism.,Chen NC, Yoshimura M, Miyazaki N, Guan HH, Chuankhayan P, Lin CC, Chen SK, Lin PJ, Huang YC, Iwasaki K, Nakagawa A, Chan SI, Chen CJ Commun Biol. 2019 Feb 20;2:72. doi: 10.1038/s42003-019-0311-z. eCollection 2019. PMID:30820467<ref>PMID:30820467</ref>

 

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

<div class="pdbe-citations 6ab5" style="background-color:#fffaf0;"></div>

<references/>

</StructureSection>

[[Category: Chen, C J]]

[[Category: Chen, N C]]

[[Category: Guan, H H]]

[[Category: Iwasaki, K]]

[[Category: Lin, C C]]

[[Category: Miyazaki, N]]

[[Category: Yoshimura, M]]

[[Category: Virus like particle]]