View source for 1kac


==KNOB DOMAIN FROM ADENOVIRUS SEROTYPE 12 IN COMPLEX WITH DOMAIN 1 OF ITS CELLULAR RECEPTOR CAR==
<StructureSection load='1kac' size='340' side='right'caption='[[1kac]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1kac]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Ade12 Ade12] and [https://en.wikipedia.org/wiki/Human Human]. The December 2010 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Adenovirus''  by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2010_12 10.2210/rcsb_pdb/mom_2010_12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KAC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KAC FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1nob|1nob]]</div></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=1kac FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kac OCA], [https://pdbe.org/1kac PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kac RCSB], [https://www.ebi.ac.uk/pdbsum/1kac PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kac ProSAT]</span></td></tr>
</table>
== Function ==
[[https://www.uniprot.org/uniprot/SPIKE_ADE12 SPIKE_ADE12]] Forms spikes that protrude from each vertex of the icosahedral capsid. Interacts with host receptor CXCAR to provide virion initial attachment to target cell. Fiber proteins are shed during virus entry, when virus is still at the cell surface (By similarity). [[https://www.uniprot.org/uniprot/CXAR_HUMAN CXAR_HUMAN]] Component of the epithelial apical junction complex that is essential for the tight junction integrity. Proposed to function as a homophilic cell adhesion molecule. Recruits MPDZ to intercellular contact sites. Probably involved in transepithelial migration of polymorphonuclear leukocytes (PMN) through adhesive interactions with AMICA1/JAML located in the plasma membrane of PMN.<ref>PMID:9096397</ref> <ref>PMID:11734628</ref> <ref>PMID:12297051</ref> <ref>PMID:15800062</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/ka/1kac_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=1kac ConSurf].
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== Publication Abstract from PubMed ==
Binding of virus particles to specific host cell surface receptors is known to be an obligatory step in infection even though the molecular basis for these interactions is not well characterized. The crystal structure of the adenovirus fiber knob domain in complex with domain I of its human cellular receptor, coxsackie and adenovirus receptor (CAR), is presented here. Surface-exposed loops on knob contact one face of CAR, forming a high-affinity complex. Topology mismatches between interacting surfaces create interfacial solvent-filled cavities and channels that may be targets for antiviral drug therapy. The structure identifies key determinants of binding specificity, which may suggest ways to modify the tropism of adenovirus-based gene therapy vectors.

Structural analysis of the mechanism of adenovirus binding to its human cellular receptor, CAR.,Bewley MC, Springer K, Zhang YB, Freimuth P, Flanagan JM Science. 1999 Nov 19;286(5444):1579-83. PMID:10567268<ref>PMID:10567268</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Ade12]]
[[Category: Adenovirus]]
[[Category: Human]]
[[Category: Large Structures]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Bewley, M C]]
[[Category: Flanagan, J M]]
[[Category: Freimuth, P]]
[[Category: Springer, K]]
[[Category: Zhang, Y B]]
[[Category: Adhesion protein receptor complex]]
[[Category: Viral protein-receptor complex]]