1p2z

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(New page: 200px<br /><applet load="1p2z" size="450" color="white" frame="true" align="right" spinBox="true" caption="1p2z, resolution 2.20&Aring;" /> '''Refinement of Adenov...)
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[[Image:1p2z.jpg|left|200px]]<br /><applet load="1p2z" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1p2z, resolution 2.20&Aring;" />
 
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'''Refinement of Adenovirus Type 2 Hexon with CNS'''<br />
 
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==Overview==
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==Refinement of Adenovirus Type 2 Hexon with CNS==
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A major impediment to the use of adenovirus as a gene therapy vector and, for vaccine applications is the host immune response to adenovirus, hexon-the major protein component of the icosahedral capsid. A solution, may lie in novel vectors with modified or chimeric hexons designed to, evade the immune response. To facilitate this approach, we have, distinguished the portion of hexon that all serotypes have in common from, the hypervariable regions that are responsible for capsid diversity and, type-specific immunogenicity. The common hexon core-conserved because it, forms the viral capsid-sets boundaries to the regions where modifications, can be made to produce nonnative hexons. The core has been defined from, the large and diverse set of known hexon sequences by an accurate, alignment based on the newly refined crystal structures of human, adenovirus types 2 (Ad2) and Ad5 hexon. Comparison of the two hexon, models, which are the most accurate so far, reveals that over 90% of the, residues in each have three-dimensional positions that closely match., Structures for more distant hexons were predicted by building molecular, models of human Ad4, chimpanzee adenovirus (AdC68), and fowl adenovirus 1, (FAV1 or CELO). The five structures were then used to guide the alignment, of the 40 full-length (&gt;900 residues) hexon sequences in public databases., Distance- and parsimony-based phylogenetic trees are consistent and reveal, evolutionary relationships between adenovirus types that parallel those of, their animal hosts. The combination of crystallography, molecular, modeling, and phylogenetic analysis defines a conserved molecular core, that can serve as the armature for the directed design of novel hexons.
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<StructureSection load='1p2z' size='340' side='right'caption='[[1p2z]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1p2z]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_adenovirus_2 Human adenovirus 2]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1dhx 1dhx]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P2Z OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P2Z FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CIT:CITRIC+ACID'>CIT</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1p2z FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p2z OCA], [https://pdbe.org/1p2z PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p2z RCSB], [https://www.ebi.ac.uk/pdbsum/1p2z PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p2z ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CAPSH_ADE02 CAPSH_ADE02] Major capsid protein that self-associates to form 240 hexon trimers, each in the shape of a hexagon, building most of the pseudo T=25 capsid. Assembled into trimeric units with the help of the chaperone shutoff protein. Transported by pre-protein VI to the nucleus where it associates with other structural proteins to form an empty capsid. Might be involved, through its interaction with host dyneins, in the intracellular microtubule-dependent transport of incoming viral capsid to the nucleus.<ref>PMID:20798312</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p2/1p2z_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=1p2z ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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A major impediment to the use of adenovirus as a gene therapy vector and for vaccine applications is the host immune response to adenovirus hexon-the major protein component of the icosahedral capsid. A solution may lie in novel vectors with modified or chimeric hexons designed to evade the immune response. To facilitate this approach, we have distinguished the portion of hexon that all serotypes have in common from the hypervariable regions that are responsible for capsid diversity and type-specific immunogenicity. The common hexon core-conserved because it forms the viral capsid-sets boundaries to the regions where modifications can be made to produce nonnative hexons. The core has been defined from the large and diverse set of known hexon sequences by an accurate alignment based on the newly refined crystal structures of human adenovirus types 2 (Ad2) and Ad5 hexon. Comparison of the two hexon models, which are the most accurate so far, reveals that over 90% of the residues in each have three-dimensional positions that closely match. Structures for more distant hexons were predicted by building molecular models of human Ad4, chimpanzee adenovirus (AdC68), and fowl adenovirus 1 (FAV1 or CELO). The five structures were then used to guide the alignment of the 40 full-length (&gt;900 residues) hexon sequences in public databases. Distance- and parsimony-based phylogenetic trees are consistent and reveal evolutionary relationships between adenovirus types that parallel those of their animal hosts. The combination of crystallography, molecular modeling, and phylogenetic analysis defines a conserved molecular core that can serve as the armature for the directed design of novel hexons.
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==About this Structure==
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Structural and phylogenetic analysis of adenovirus hexons by use of high-resolution x-ray crystallographic, molecular modeling, and sequence-based methods.,Rux JJ, Kuser PR, Burnett RM J Virol. 2003 Sep;77(17):9553-66. PMID:12915569<ref>PMID:12915569</ref>
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1P2Z is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Human_adenovirus_2 Human adenovirus 2] with CIT as [http://en.wikipedia.org/wiki/ligand ligand]. This structure superseeds the now removed PDB entry 1DHX. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1P2Z OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Structural and phylogenetic analysis of adenovirus hexons by use of high-resolution x-ray crystallographic, molecular modeling, and sequence-based methods., Rux JJ, Kuser PR, Burnett RM, J Virol. 2003 Sep;77(17):9553-66. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12915569 12915569]
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</div>
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[[Category: Human adenovirus 2]]
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<div class="pdbe-citations 1p2z" style="background-color:#fffaf0;"></div>
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[[Category: Single protein]]
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[[Category: Burnett, R.M.]]
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[[Category: Kuser, P.R.]]
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[[Category: Rux, J.J.]]
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[[Category: CIT]]
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[[Category: adenovirus]]
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[[Category: coat protein]]
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[[Category: hexon]]
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[[Category: jellyroll]]
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[[Category: type 2]]
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[[Category: virus]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 23:25:35 2007''
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==See Also==
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*[[Virus coat proteins 3D structures|Virus coat proteins 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Human adenovirus 2]]
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[[Category: Large Structures]]
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[[Category: Burnett RM]]
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[[Category: Kuser PR]]
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[[Category: Rux JJ]]

Current revision

Refinement of Adenovirus Type 2 Hexon with CNS

PDB ID 1p2z

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