View source for 2vf9


==Crystal structure of bacteriophage PRR1==
<StructureSection load='2vf9' size='340' side='right'caption='[[2vf9]], [[Resolution|resolution]] 3.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2vf9]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_phage_PRR1 Pseudomonas phage PRR1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VF9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VF9 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]] 3.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</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=2vf9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vf9 OCA], [https://pdbe.org/2vf9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vf9 RCSB], [https://www.ebi.ac.uk/pdbsum/2vf9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vf9 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/COAT_BPPRR COAT_BPPRR] Forms the phage shell; binds to the phage RNA.
== 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/vf/2vf9_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=2vf9 ConSurf].
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== Publication Abstract from PubMed ==
Many nonenveloped virus particles are stabilized by calcium ions bound in the interfaces between the protein subunits. These ions may have a role in the disassembly process. The small RNA phages of the Leviviridae family have T=3 quasi-symmetry and are unique among simple viruses in that they have a coat protein with a translational repressor activity and a fold that has not been observed in other viruses. The crystal structure of phage PRR1 has been determined to 3.5 A resolution. The structure shows a tentative binding site for a calcium ion close to the quasi-3-fold axis. The RNA-binding surface used for repressor activity is mostly conserved. The structure does not show any significant differences between quasi-equivalent subunits, which suggests that the assembly is not controlled by conformational switches as in many other simple viruses.

The capsid of the small RNA phage PRR1 is stabilized by metal ions.,Persson M, Tars K, Liljas L J Mol Biol. 2008 Nov 21;383(4):914-22. Epub 2008 Aug 29. PMID:18786545<ref>PMID:18786545</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: Large Structures]]
[[Category: Pseudomonas phage PRR1]]
[[Category: Liljas L]]
[[Category: Persson M]]
[[Category: Tars K]]