4y4y: Difference between revisions
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==T=1 capsid structure of SeMV Ndel65CP fused with B-domain of S. aureus protein SpA at the N-terminus (C2 crystal form)== | |||
<StructureSection load='4y4y' size='340' side='right'caption='[[4y4y]], [[Resolution|resolution]] 3.00Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4y4y]] is a 30 chain structure with sequence from [https://en.wikipedia.org/wiki/Sesbania_mosaic_virus Sesbania mosaic virus] and [https://en.wikipedia.org/wiki/Staphylococcus_aureus_subsp._aureus_NCTC_8325 Staphylococcus aureus subsp. aureus NCTC 8325]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4Y4Y OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4Y4Y 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]] 3Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=4y4y FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4y4y OCA], [https://pdbe.org/4y4y PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4y4y RCSB], [https://www.ebi.ac.uk/pdbsum/4y4y PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4y4y ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SPA_STAA8 SPA_STAA8] [https://www.uniprot.org/uniprot/Q9EB06_9VIRU Q9EB06_9VIRU] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The capsid protein (CP) of Sesbania mosaic virus (SeMV, a T=3 plant virus) consists of a disordered N-terminal R-domain and an ordered S-domain. Removal of the R-domain results in the formation of T=1 particles. In the current study, the R-domain was replaced with unrelated polypeptides of similar lengths: the B-domain of Staphylococcus aureus SpA, and SeMV encoded polypeptides P8 and P10. The chimeric proteins contained T=3 or larger virus-like particles (VLPs) and could not be crystallized. The presence of metal ions during purification resulted in a large number of heterogeneous nucleoprotein complexes. N65-B (R domain replaced with B domain) could also be purified in a dimeric form. Its crystal structure revealed T=1 particles devoid of metal ions and the B-domain was disordered. However, the B-domain was functional in N65-B VLPs, suggesting possible biotechnological applications. These studies illustrate the importance of N-terminal residues, metal ions and robustness of the assembly process. | |||
Structural studies on chimeric Sesbania mosaic virus coat protein: Revisiting SeMV assembly.,Gulati A, Murthy A, Abraham A, Mohan K, Natraj U, Savithri HS, Murthy MR Virology. 2015 Dec 17;489:34-43. doi: 10.1016/j.virol.2015.11.029. PMID:26704627<ref>PMID:26704627</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: | <div class="pdbe-citations 4y4y" style="background-color:#fffaf0;"></div> | ||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Sesbania mosaic virus]] | |||
[[Category: Staphylococcus aureus subsp. aureus NCTC 8325]] | |||
[[Category: Gulati A]] | |||
[[Category: Murthy MRN]] | |||
