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==THE REFINED THREE-DIMENSIONAL STRUCTURE OF AN INSECT VIRUS AT 2.8 ANGSTROMS RESOLUTION== | |||
<StructureSection load='2bbv' size='340' side='right'caption='[[2bbv]], [[Resolution|resolution]] 2.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2bbv]] is a 7 chain structure with sequence from [https://en.wikipedia.org/wiki/Black_beetle_virus Black beetle virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BBV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BBV 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]] 2.8Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</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=2bbv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bbv OCA], [https://pdbe.org/2bbv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bbv RCSB], [https://www.ebi.ac.uk/pdbsum/2bbv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bbv ProSAT]</span></td></tr> | ||
[[2bbv]] is a 7 chain structure with sequence from [ | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/CAPSD_BBV CAPSD_BBV] Capsid protein alpha self-assembles to form an icosahedral procapsid with a T=3 symmetry, about 30 nm in diameter, and consisting of 60 capsid proteins trimers. In addition, calcium ions are incorporated per capsid during assembly. The capsid encapsulates the two genomic RNAs. Capsid maturation occurs via autoproteolytic cleavage of capsid protein alpha generating capsid protein beta and the membrane-active peptide gamma (By similarity). Peptide gamma is a membrane-disrupting peptide produced by virus maturation, thereby creating the infectious virion. After penetration into the host cell, peptide gamma is probably exposed/released in endosomes, where it disrupts the endosomal membrane, facilitating translocation of viral RNA into the cytoplasm (By similarity). | |||
== 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/bb/2bbv_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=2bbv ConSurf]. | |||
<div style="clear:both"></div> | |||
==See Also== | ==See Also== | ||
*[[Aminopeptidase|Aminopeptidase]] | *[[Aminopeptidase 3D structures|Aminopeptidase 3D structures]] | ||
*[[Virus coat | *[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]] | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Black beetle virus]] | [[Category: Black beetle virus]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Hosur MV]] | ||
[[Category: | [[Category: Johnson JE]] | ||
[[Category: | [[Category: Reddy VS]] | ||
[[Category: | [[Category: Wery J-P]] | ||
Latest revision as of 12:16, 14 February 2024
THE REFINED THREE-DIMENSIONAL STRUCTURE OF AN INSECT VIRUS AT 2.8 ANGSTROMS RESOLUTIONTHE REFINED THREE-DIMENSIONAL STRUCTURE OF AN INSECT VIRUS AT 2.8 ANGSTROMS RESOLUTION
Structural highlights
FunctionCAPSD_BBV Capsid protein alpha self-assembles to form an icosahedral procapsid with a T=3 symmetry, about 30 nm in diameter, and consisting of 60 capsid proteins trimers. In addition, calcium ions are incorporated per capsid during assembly. The capsid encapsulates the two genomic RNAs. Capsid maturation occurs via autoproteolytic cleavage of capsid protein alpha generating capsid protein beta and the membrane-active peptide gamma (By similarity). Peptide gamma is a membrane-disrupting peptide produced by virus maturation, thereby creating the infectious virion. After penetration into the host cell, peptide gamma is probably exposed/released in endosomes, where it disrupts the endosomal membrane, facilitating translocation of viral RNA into the cytoplasm (By similarity). Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. See Also |
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