3foa

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{{Seed}}
 
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[[Image:3foa.png|left|200px]]
 
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==Crystal structure of the bacteriophage T4 tail sheath protein, deletion mutant gp18M==
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The line below this paragraph, containing "STRUCTURE_3foa", creates the "Structure Box" on the page.
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<StructureSection load='3foa' size='340' side='right'caption='[[3foa]], [[Resolution|resolution]] 3.50&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3foa]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_T4 Escherichia virus T4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FOA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FOA FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 3.5&#8491;</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=3foa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3foa OCA], [https://pdbe.org/3foa PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3foa RCSB], [https://www.ebi.ac.uk/pdbsum/3foa PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3foa ProSAT]</span></td></tr>
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{{STRUCTURE_3foa| PDB=3foa | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TSP_BPT4 TSP_BPT4] Structural component of the bacteriophage tail which consists of a contractile sheath, a tube and a baseplate. The central cylindrical segment of the tail consists of a rigid tube, composed of multiple copies of gp19, surrounded by the outer contractile sheath assembled from gp18 subunits. A total of 138 copies of gp18 arranged into 23 hexameric rings constitutes the sheath. During infection, contraction of the sheath drives the central tube through the host outer membrane, creating a channel for DNA ejection from the capsid into the host cell.<ref>PMID:14625682</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/fo/3foa_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=3foa 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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The contractile tail of bacteriophage T4 is a molecular machine that facilitates very high viral infection efficiency. Its major component is a tail sheath, which contracts during infection to less than half of its initial length. The sheath consists of 138 copies of the tail sheath protein, gene product (gp) 18, which surrounds the central non-contractile tail tube. The contraction of the sheath drives the tail tube through the outer membrane, creating a channel for the viral genome delivery. A crystal structure of about three quarters of gp18 has been determined and was fitted into cryo-electron microscopy reconstructions of the tail sheath before and after contraction. It was shown that during contraction, gp18 subunits slide over each other with no apparent change in their structure.
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===Crystal structure of the bacteriophage T4 tail sheath protein, deletion mutant gp18M===
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The tail sheath structure of bacteriophage T4: a molecular machine for infecting bacteria.,Aksyuk AA, Leiman PG, Kurochkina LP, Shneider MM, Kostyuchenko VA, Mesyanzhinov VV, Rossmann MG EMBO J. 2009 Apr 8;28(7):821-9. Epub 2009 Feb 19. PMID:19229296<ref>PMID:19229296</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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The line below this paragraph, {{ABSTRACT_PUBMED_19229296}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 3foa" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 19229296 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_19229296}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Escherichia virus T4]]
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3FOA is a 4 chains structure of sequences from [http://en.wikipedia.org/wiki/Enterobacteria_phage_t4 Enterobacteria phage t4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FOA OCA].
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[[Category: Large Structures]]
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[[Category: Aksyuk AA]]
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==Reference==
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[[Category: Kostyuchenko VA]]
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<ref group="xtra">PMID:19229296</ref><references group="xtra"/>
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[[Category: Kurochkina LP]]
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[[Category: Enterobacteria phage t4]]
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[[Category: Leiman PG]]
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[[Category: Aksyuk, A A.]]
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[[Category: Mesyanzhinov VV]]
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[[Category: Kostyuchenko, V A.]]
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[[Category: Rossmann MG]]
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[[Category: Kurochkina, L P.]]
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[[Category: Shneider MM]]
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[[Category: Leiman, P G.]]
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[[Category: Mesyanzhinov, V V.]]
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[[Category: Rossmann, M G.]]
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[[Category: Shneider, M M.]]
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[[Category: Alpha-beta]]
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[[Category: Bacteriophage t4]]
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[[Category: Tail sheath]]
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[[Category: Viral protein]]
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[[Category: Viral structural protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Apr 22 10:42:25 2009''
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Current revision

Crystal structure of the bacteriophage T4 tail sheath protein, deletion mutant gp18M

PDB ID 3foa

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