1qhv: Difference between revisions
New page: left|200px<br /><applet load="1qhv" size="450" color="white" frame="true" align="right" spinBox="true" caption="1qhv, resolution 1.51Å" /> '''HUMAN ADENOVIRUS SER... |
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== | ==HUMAN ADENOVIRUS SEROTYPE 2 FIBRE HEAD== | ||
Adenovirus binds to its receptor via the head domain of its fiber protein. | <StructureSection load='1qhv' size='340' side='right'caption='[[1qhv]], [[Resolution|resolution]] 1.51Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1qhv]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_adenovirus_2 Human adenovirus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QHV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1QHV 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]] 1.51Å</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=1qhv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1qhv OCA], [https://pdbe.org/1qhv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1qhv RCSB], [https://www.ebi.ac.uk/pdbsum/1qhv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1qhv ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/SPIKE_ADE02 SPIKE_ADE02] Forms spikes that protrude from each vertex of the icosahedral capsid. Interacts with host coxsackievirus and adenovirus receptor CXADR located at the cell tight junctions to provide virion initial attachment to target cell. The fiber protein binds to CXADR with a higher affinity than CXADR binds to itself, thereby blocking the cell-cell adhesion function of CXADR dimers and leading to local disruption of the tight junction. Fiber protein present on neo-synthesized particles may thus disrupt the junctional integrity in order to facilitate further neighboring cells infection. Fiber proteins are shed during virus entry, when virus is still at the cell surface. Fiber shedding is dependent on viral CXADR drifting motion and subsequent binding to immobile integrins. Heparan sulfate might also play a role in virus binding.<ref>PMID:10704346</ref> <ref>PMID:12297051</ref> <ref>PMID:21843868</ref> <ref>PMID:9525681</ref> | |||
== 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/qh/1qhv_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=1qhv ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Adenovirus binds to its receptor via the head domain of its fiber protein. We have crystallized the adenovirus serotype 2 (subgroup C) receptor binding domain and solved the structure at 1.5 A resolution by the molecular replacement technique using the known adenovirus type 5 head structure. Included in the high-resolution model are 306 water molecules, five alternative side chain conformations, and individual anisotropic temperature factors for each atom. The overall structure of the serotype 2 head is very similar to its serotype 5 homologue, apart from differences in some of the flexible loops. All but subgroup B adenoviruses are believed to use the recently identified protein CAR (Coxsackievirus and adenovirus receptor) as receptor. By comparison of the two structures and sequence alignment of CAR binding and non-CAR binding serotype fiber heads, we discuss possible receptor binding sites and propose a receptor binding site in a crevice between two monomers on the side of the trimer. The structural basis of the extraordinary stability of the fiber head trimer is also discussed. | |||
Structure of the human adenovirus serotype 2 fiber head domain at 1.5 A resolution.,van Raaij MJ, Louis N, Chroboczek J, Cusack S Virology. 1999 Sep 30;262(2):333-43. PMID:10502512<ref>PMID:10502512</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1qhv" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Human adenovirus 2]] | [[Category: Human adenovirus 2]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Chroboczek | [[Category: Chroboczek J]] | ||
[[Category: Cusack | [[Category: Cusack S]] | ||
[[Category: Louis | [[Category: Louis N]] | ||
[[Category: Raaij | [[Category: Van Raaij MJ]] | ||
