1zwi

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 1: Line 1:
-
[[Image:1zwi.png|left|200px]]
+
==Structure of mutant KcsA potassium channel==
 +
<StructureSection load='1zwi' size='340' side='right' caption='[[1zwi]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[1zwi]] is a 3 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=1ZWI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZWI FirstGlance]. <br>
 +
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DGA:DIACYL+GLYCEROL'>DGA</scene>, <scene name='pdbligand=F09:NONAN-1-OL'>F09</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene><br>
 +
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">kcsA, skc1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1916 Streptomyces lividans])</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=1zwi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zwi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1zwi RCSB], [http://www.ebi.ac.uk/pdbsum/1zwi 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/zw/1zwi_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 show that in the potassium channel KcsA, proton-dependent activation is followed by an inactivation process similar to C-type inactivation, and this process is suppressed by an E71A mutation in the pore helix. EPR spectroscopy demonstrates that the inner gate opens maximally at low pH regardless of the magnitude of the single-channel-open probability, implying that stationary gating originates mostly from rearrangements at the selectivity filter. Two E71A crystal structures obtained at 2.5 A reveal large structural excursions of the selectivity filter during ion conduction and provide a glimpse of the range of conformations available to this region of the channel during gating. These data establish a mechanistic basis for the role of the selectivity filter during channel activation and inactivation.
-
{{STRUCTURE_1zwi| PDB=1zwi | SCENE= }}
+
Molecular determinants of gating at the potassium-channel selectivity filter.,Cordero-Morales JF, Cuello LG, Zhao Y, Jogini V, Cortes DM, Roux B, Perozo E Nat Struct Mol Biol. 2006 Apr;13(4):311-8. Epub 2006 Mar 12. PMID:16532009<ref>PMID:16532009</ref>
-
===Structure of mutant KcsA potassium channel===
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
 
+
</div>
-
{{ABSTRACT_PUBMED_16532009}}
+
-
 
+
-
==About this Structure==
+
-
[[1zwi]] is a 3 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=1ZWI OCA].
+
==See Also==
==See Also==
 +
*[[Monoclonal Antibody|Monoclonal Antibody]]
*[[Potassium Channel|Potassium Channel]]
*[[Potassium Channel|Potassium Channel]]
-
 
+
== References ==
-
==Reference==
+
<references/>
-
<ref group="xtra">PMID:016532009</ref><references group="xtra"/>
+
__TOC__
 +
</StructureSection>
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Streptomyces lividans]]
[[Category: Streptomyces lividans]]

Revision as of 09:48, 29 September 2014

Structure of mutant KcsA potassium channel

1zwi, resolution 2.50Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1zwi"
Views
Personal tools
Navigation
Toolbox