6gsi: Difference between revisions
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The | ==Feline Calicivirus Strain F9 bound to a soluble ectodomain fragment of feline junctional adhesion molecule A - leading to assembly of a portal structure at a unique three-fold axis.== | ||
<StructureSection load='6gsi' size='340' side='right' caption='[[6gsi]], [[Resolution|resolution]] 3.75Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6gsi]] is a 12 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Feline_calicivirus_strain_f9 Feline calicivirus strain f9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6GSI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6GSI FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr> | |||
[[Category: | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[6gsh|6gsh]]</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=6gsi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6gsi OCA], [http://pdbe.org/6gsi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6gsi RCSB], [http://www.ebi.ac.uk/pdbsum/6gsi PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6gsi ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[[http://www.uniprot.org/uniprot/CAPSD_FCVF9 CAPSD_FCVF9]] Capsid protein self assembles to form an icosahedral capsid with a T=3 symmetry, about 38 nm in diameter, and consisting of 180 capsid proteins. A smaller form of capsid with a diameter of 23 nm might be capsid proteins assembled as icosahedron with T=1 symmetry. The capsid encapsulate the genomic RNA and VP2 proteins. Attaches virion to target cells by binding to feline junctional adhesion molecule A (F11R) and/or to alpha-2,6-linked sialic acid. Once attached, the virion is endocytosed. Acidification of the endosome induces conformational change of capsid protein thereby injecting virus genomic RNA into host cytoplasm. [[http://www.uniprot.org/uniprot/VP2_FCVF9 VP2_FCVF9]] Minor structural protein present in one or two copies per virion. Does not seem to play a role in capsid assembly, but is essential for production of infectious virus (By similarity). [[http://www.uniprot.org/uniprot/JAM1_FELCA JAM1_FELCA]] Seems to play a role in epithelial tight junction formation. Appears early in primordial forms of cell junctions and recruits PARD3. The association of the PARD6-PARD3 complex may prevent the interaction of PARD3 with JAM1, thereby preventing tight junction assembly. Plays a role in regulating monocyte transmigration involved in integrity of epithelial barrier. Ligand for integrin alpha-L/beta-2 involved in memory T-cell and neutrophil transmigration. Involved in platelet activation.[UniProtKB:O88792][UniProtKB:Q9Y624] (Microbial infection) May act as a cellular receptor for calicivirus.<ref>PMID:16611908</ref> <ref>PMID:17913818</ref> (Microbial infection) In case of orthoreovirus infection, serves as receptor for the virus.<ref>PMID:11239401</ref> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Feline calicivirus strain f9]] | |||
[[Category: Bhella, D]] | |||
[[Category: Conley, M J]] | |||
[[Category: Calicivirus]] | |||
[[Category: Capsid]] | |||
[[Category: Junctional-adhesion molecule some]] | |||
[[Category: Portal]] | |||
[[Category: Vesivirus]] | |||
[[Category: Virus]] | |||
[[Category: Vp1]] | |||
[[Category: Vp2]] | |||