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== | |||
<StructureSection load='2uvs' size='340' side='right' caption='[[2uvs | ==High Resolution Solid-state NMR structure of Kaliotoxin== | ||
<StructureSection load='2uvs' size='340' side='right'caption='[[2uvs]]' scene=''> | |||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2uvs]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[2uvs]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Androctonus_mauritanicus Androctonus mauritanicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UVS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2UVS FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[ | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solid-state NMR, 20 models</td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2uvs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uvs OCA], [https://pdbe.org/2uvs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2uvs RCSB], [https://www.ebi.ac.uk/pdbsum/2uvs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2uvs ProSAT]</span></td></tr> | ||
<table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/KAX31_ANDMA KAX31_ANDMA] Potent inhibitor of large conductance calcium-activated potassium channels (BK-Ca). Also binds to the dendrotoxin sensitive voltage-dependent potassium channel. It appears to block channel activity by a simple bimolecular inhibition process. Induces a transient period of fast flickering in the channel openings, followed by an almost complete blockade of the channel. Its binding affinity to rat brain synaptosomes is 5-fold higher than this of KTX-3. Binding of the toxin to the channel is associated with significant structural rearrangements in both molecules. | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uv/2uvs_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/uv/2uvs_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </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/ | </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=2uvs ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
==See Also== | ==See Also== | ||
*[[Potassium channel toxin|Potassium channel toxin]] | *[[Potassium channel toxin 3D structures|Potassium channel toxin 3D structures]] | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Androctonus mauritanicus]] | [[Category: Androctonus mauritanicus]] | ||
[[Category: Baldus | [[Category: Large Structures]] | ||
[[Category: Becker | [[Category: Baldus M]] | ||
[[Category: Korukottu | [[Category: Becker S]] | ||
[[Category: Lange | [[Category: Korukottu J]] | ||
[[Category: Pongs | [[Category: Lange A]] | ||
[[Category: Schneider | [[Category: Pongs O]] | ||
[[Category: Vijayan | [[Category: Schneider R]] | ||
[[Category: Zweckstetter | [[Category: Vijayan V]] | ||
[[Category: Zweckstetter M]] | |||
Latest revision as of 12:30, 6 November 2024
High Resolution Solid-state NMR structure of KaliotoxinHigh Resolution Solid-state NMR structure of Kaliotoxin
Structural highlights
FunctionKAX31_ANDMA Potent inhibitor of large conductance calcium-activated potassium channels (BK-Ca). Also binds to the dendrotoxin sensitive voltage-dependent potassium channel. It appears to block channel activity by a simple bimolecular inhibition process. Induces a transient period of fast flickering in the channel openings, followed by an almost complete blockade of the channel. Its binding affinity to rat brain synaptosomes is 5-fold higher than this of KTX-3. Binding of the toxin to the channel is associated with significant structural rearrangements in both molecules. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. See Also |
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