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{{STRUCTURE_1h8t| PDB=1h8t | SCENE= }}
==Echovirus 11==
===Echovirus 11===
<StructureSection load='1h8t' size='340' side='right' caption='[[1h8t]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
{{ABSTRACT_PUBMED_12097583}}
== Structural highlights ==
<table><tr><td colspan='2'>[[1h8t]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human_echovirus_11 Human echovirus 11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H8T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1H8T FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DOA:12-AMINO-DODECANOIC+ACID'>DOA</scene>, <scene name='pdbligand=MYR:MYRISTIC+ACID'>MYR</scene><br>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1h8t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1h8t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1h8t RCSB], [http://www.ebi.ac.uk/pdbsum/1h8t PDBsum]</span></td></tr>
<table>
== 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/h8/1h8t_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/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
We have used X-ray crystallography to determine the structure of a decay accelerating factor (DAF)-binding, clinic-derived isolate of echovirus 11 (EV11-207). The structures of the capsid proteins closely resemble those of capsid proteins of other picornaviruses. The structure allows us to interpret a series of amino acid changes produced by passaging EV11-207 in different cell lines as highlighting the locations of multiple receptor-binding sites on the virion surface. We suggest that a DAF-binding site is located at the fivefold axes of the virion, while the binding site for a distinct but as yet unidentified receptor is located within the canyon surrounding the virion fivefold axes.


==Function==
Determination of the structure of a decay accelerating factor-binding clinical isolate of echovirus 11 allows mapping of mutants with altered receptor requirements for infection.,Stuart AD, McKee TA, Williams PA, Harley C, Shen S, Stuart DI, Brown TD, Lea SM J Virol. 2002 Aug;76(15):7694-704. PMID:12097583<ref>PMID:12097583</ref>
[[http://www.uniprot.org/uniprot/POLG_EC11G POLG_EC11G]] Capsid proteins VP1, VP2, VP3 and VP4 form a closed capsid enclosing the viral positive strand RNA genome. VP4 lies on the inner surface of the protein shell formed by VP1, VP2 and VP3. All the three latter proteins contain a beta-sheet structure called beta-barrel jelly roll. Together they form an icosahedral capsid (T=3) composed of 60 copies of each VP1, VP2, and VP3, with a diameter of approximately 300 Angstroms. VP1 is situated at the 12 fivefold axes, whereas VP2 and VP3 are located at the quasi-sixfold axes (By similarity). Capsid proteins interact with host CD55 to provide virion attachment to target cell.  VP0 precursor is a component of immature procapsids (By similarity).  Protein 2A is a cysteine protease that is responsible for the cleavage between the P1 and P2 regions. It cleaves the host translation initiation factor EIF4G1, in order to shut down the capped cellular mRNA transcription (By similarity).  Protein 2B affects membrane integrity and cause an increase in membrane permeability (By similarity).  Protein 2C associates with and induces structural rearrangements of intracellular membranes. It displays RNA-binding, nucleotide binding and NTPase activities (By similarity).  Protein 3A, via its hydrophobic domain, serves as membrane anchor. It also inhibits endoplasmic reticulum-to-Golgi transport (By similarity).  Protein 3C is a cysteine protease that generates mature viral proteins from the precursor polyprotein. In addition to its proteolytic activity, it binds to viral RNA, and thus influences viral genome replication. RNA and substrate bind co-operatively to the protease (By similarity).  RNA-directed RNA polymerase 3D-POL replicates genomic and antigenomic RNA by recognizing replications specific signals (By similarity).  


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[1h8t]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human_echovirus_11 Human echovirus 11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H8T OCA].
</div>
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:012097583</ref><references group="xtra"/><references/>
__TOC__
</StructureSection>
[[Category: Human echovirus 11]]
[[Category: Human echovirus 11]]
[[Category: Brown, T D.K.]]
[[Category: Brown, T D.K.]]

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