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1kba

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==CRYSTAL STRUCTURE OF KAPPA-BUNGAROTOXIN AT 2.3-ANGSTROM RESOLUTION==
==CRYSTAL STRUCTURE OF KAPPA-BUNGAROTOXIN AT 2.3-ANGSTROM RESOLUTION==
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<StructureSection load='1kba' size='340' side='right' caption='[[1kba]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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<StructureSection load='1kba' size='340' side='right'caption='[[1kba]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[1kba]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Bungarus_multicinctus Bungarus multicinctus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KBA OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1KBA FirstGlance]. <br>
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<table><tr><td colspan='2'>[[1kba]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bungarus_multicinctus Bungarus multicinctus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KBA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KBA FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1nbt|1nbt]]</td></tr>
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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]] 2.3&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1kba FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kba OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1kba RCSB], [http://www.ebi.ac.uk/pdbsum/1kba PDBsum]</span></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=1kba FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kba OCA], [https://pdbe.org/1kba PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kba RCSB], [https://www.ebi.ac.uk/pdbsum/1kba PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kba ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/NXL1_BUNMU NXL1_BUNMU]] Neurotoxin. Binds and inhibits nicotinic acetylcholine receptors. Compared to alpha-neurotoxins, kappa-neurotoxins bind more strongly to neuronal receptors, and less strongly to muscle receptors.<ref>PMID:3986193</ref>
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[https://www.uniprot.org/uniprot/3LKB_BUNMU 3LKB_BUNMU] Postsynaptic neurotoxin that binds and inhibits neuronal nicotinic acetylcholine receptors (nAChR) with high affinity (IC(50)<100 nM). Is a selective, and slowly reversible antagonist of alpha-3/CHRNA3-containing and some alpha-4/CHRNA4-containing AChRs.<ref>PMID:3986193</ref> <ref>PMID:9027980</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kb/1kba_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kb/1kba_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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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</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=1kba ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 1kba" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Bungarotoxin|Bungarotoxin]]
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*[[Bungarotoxin 3D structures|Bungarotoxin 3D structures]]
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Bungarus multicinctus]]
[[Category: Bungarus multicinctus]]
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[[Category: Dewan, J C]]
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[[Category: Large Structures]]
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[[Category: Grant, G A]]
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[[Category: Dewan JC]]
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[[Category: Sacchettini, J C]]
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[[Category: Grant GA]]
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[[Category: Toxin]]
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[[Category: Sacchettini JC]]

Current revision

CRYSTAL STRUCTURE OF KAPPA-BUNGAROTOXIN AT 2.3-ANGSTROM RESOLUTION

PDB ID 1kba

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