3eff

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[[Image:3eff.png|left|200px]]
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==The Crystal Structure of Full-Length KcsA in its Closed Conformation==
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<StructureSection load='3eff' size='340' side='right' caption='[[3eff]], [[Resolution|resolution]] 3.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3eff]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Streptomyces_lividans Streptomyces lividans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EFF OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3EFF FirstGlance]. <br>
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</td></tr><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=3eff FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3eff OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3eff RCSB], [http://www.ebi.ac.uk/pdbsum/3eff PDBsum]</span></td></tr>
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<table>
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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/ef/3eff_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/chain_selection.php?pdb_ID=2ata 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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KcsA is a proton-activated, voltage-modulated K(+) channel that has served as the archetype pore domain in the Kv channel superfamily. Here, we have used synthetic antigen-binding fragments (Fabs) as crystallographic chaperones to determine the structure of full-length KcsA at 3.8 A, as well as that of its isolated C-terminal domain at 2.6 A. The structure of the full-length KcsA-Fab complex reveals a well-defined, 4-helix bundle that projects approximately 70 A toward the cytoplasm. This bundle promotes a approximately 15 degrees bending in the inner bundle gate, tightening its diameter and shifting the narrowest point 2 turns of helix below. Functional analysis of the full-length KcsA-Fab complex suggests that the C-terminal bundle remains whole during gating. We suggest that this structure likely represents the physiologically relevant closed conformation of KcsA.
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{{STRUCTURE_3eff| PDB=3eff | SCENE= }}
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Crystal structure of full-length KcsA in its closed conformation.,Uysal S, Vasquez V, Tereshko V, Esaki K, Fellouse FA, Sidhu SS, Koide S, Perozo E, Kossiakoff A Proc Natl Acad Sci U S A. 2009 Apr 3. PMID:19346472<ref>PMID:19346472</ref>
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===The Crystal Structure of Full-Length KcsA in its Closed Conformation===
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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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{{ABSTRACT_PUBMED_19346472}}
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==About this Structure==
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[[3eff]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Streptomyces_lividans Streptomyces lividans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3EFF OCA].
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==See Also==
==See Also==
*[[Antibody|Antibody]]
*[[Antibody|Antibody]]
*[[Potassium Channel|Potassium Channel]]
*[[Potassium Channel|Potassium Channel]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:019346472</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Streptomyces lividans]]
[[Category: Streptomyces lividans]]

Revision as of 13:42, 29 September 2014

The Crystal Structure of Full-Length KcsA in its Closed Conformation

3eff, resolution 3.80Å

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