1tx9
From Proteopedia
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- | [[Image:1tx9.png|left|200px]] | ||
- | + | ==gpd prior to capsid assembly== | |
+ | <StructureSection load='1tx9' size='340' side='right'caption='[[1tx9]], [[Resolution|resolution]] 3.31Å' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[1tx9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_phiX174 Escherichia virus phiX174]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TX9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TX9 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]] 3.31Å</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=1tx9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tx9 OCA], [https://pdbe.org/1tx9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tx9 RCSB], [https://www.ebi.ac.uk/pdbsum/1tx9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tx9 ProSAT]</span></td></tr> | ||
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/SCAFD_BPPHS SCAFD_BPPHS] Assembles the procapsid by joining twelve 12S pre-assembly complex into a T=1 icosahedral particle, called 108S procapsid. Ten proteins D bind each 12S complex, which are formed by three pentamers of F, G, B protein and a H protein. The scaffolding protein is released from the provirion after genome packaging to form the mature virion.<ref>PMID:15890913</ref> <ref>PMID:159449</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/tx/1tx9_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=1tx9 ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | The three-dimensional structure of bacteriophage phiX174 external scaffolding protein D, prior to its interaction with other structural proteins, has been determined to 3.3 angstroms by X-ray crystallography. The crystals belong to space group P4(1)2(1)2 with a dimer in the asymmetric unit that closely resembles asymmetric dimers observed in the phiX174 procapsid structure. Furthermore, application of the crystallographic 4(1) symmetry operation to one of these dimers generates a tetramer similar to the tetramer in the icosahedral asymmetric unit of the procapsid. These data suggest that both dimers and tetramers of the D protein are true morphogenetic intermediates and can form independently of other proteins involved in procapsid morphogenesis. The crystal structure of the D scaffolding protein thus represents the state of the polypeptide prior to procapsid assembly. Hence, comparison with the procapsid structure provides a rare opportunity to follow the conformational switching events necessary for the construction of complex macromolecular assemblies. | ||
- | + | Conformational switching by the scaffolding protein D directs the assembly of bacteriophage phiX174.,Morais MC, Fisher M, Kanamaru S, Przybyla L, Burgner J, Fane BA, Rossmann MG Mol Cell. 2004 Sep 24;15(6):991-7. PMID:15383287<ref>PMID:15383287</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | <div class="pdbe-citations 1tx9" style="background-color:#fffaf0;"></div> | |
- | + | == References == | |
- | + | <references/> | |
- | + | __TOC__ | |
- | < | + | </StructureSection> |
- | + | [[Category: Escherichia virus phiX174]] | |
- | + | [[Category: Large Structures]] | |
- | [[Category: | + | [[Category: Fane BA]] |
- | [[Category: | + | [[Category: Fisher M]] |
- | [[Category: | + | [[Category: Kanamaru K]] |
- | [[Category: | + | [[Category: Morais MC]] |
- | [[Category: | + | [[Category: Rossmann MG]] |
- | [[Category: | + | |
- | [[Category: | + | |
- | + | ||
- | + |
Current revision
gpd prior to capsid assembly
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