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==NMR SOLUTION STRUCTURE OF A CHIMERIC PROTEIN, DESIGNED BY TRANSFERRING A FUNCTIONAL SNAKE BETA-HAIRPIN INTO A SCORPION ALPHA/BETA SCAFFOLD (PH 3.5, 20C), NMR, 18 STRUCTURES==
==NMR SOLUTION STRUCTURE OF A CHIMERIC PROTEIN, DESIGNED BY TRANSFERRING A FUNCTIONAL SNAKE BETA-HAIRPIN INTO A SCORPION ALPHA/BETA SCAFFOLD (PH 3.5, 20C), NMR, 18 STRUCTURES==
<StructureSection load='1cmr' size='340' side='right'caption='[[1cmr]], [[NMR_Ensembles_of_Models | 18 NMR models]]' scene=''>
<StructureSection load='1cmr' size='340' side='right'caption='[[1cmr]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1cmr]] is a 1 chain structure. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CMR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CMR FirstGlance]. <br>
<table><tr><td colspan='2'>[[1cmr]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Leiurus_hebraeus Leiurus hebraeus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CMR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1CMR FirstGlance]. <br>
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1cmr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cmr OCA], [https://pdbe.org/1cmr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cmr RCSB], [https://www.ebi.ac.uk/pdbsum/1cmr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cmr ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 18 models</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1cmr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cmr OCA], [https://pdbe.org/1cmr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1cmr RCSB], [https://www.ebi.ac.uk/pdbsum/1cmr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1cmr ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/KAX11_LEIQH KAX11_LEIQH]] Potent selective inhibitor of high conductance (maxi-K), different medium and small conductance calcium-activated potassium channels (KCa/KCNM), as well as a voltage-dependent potassium channel (Kv1.3/KCNA3). It appears to block channel activity by a simple bimolecular inhibition process.<ref>PMID:15118082</ref>  Has a pH-specific antimicrobial activity against bacteria (B.subtilis, E.coli and S.aureus) and the fungus C.albicans.<ref>PMID:15118082</ref>
[https://www.uniprot.org/uniprot/KAX11_LEIHE KAX11_LEIHE] This toxin inhibits numerous potassium channels: shaker (Ki=227 nM), Kv1.2/KCNA2 (nanomolar range), Kv1.3/KCNA3 (nanomolar range), Kv1.5/KCNA5 (Kd>100 nM), Kv1.6/KCNA6 (Ki=22 nM), KCa1.1/KCNMA1 (IC(50)=5.9 nM). It blocks channel activity by a simple bimolecular inhibition process. It also shows a weak interaction with nicotinic acetylcholine receptors (nAChR), suggesting it may weakly inhibit it (PubMed:31276191). It also exhibits pH-specific antimicrobial activities against bacteria (B.subtilis, E.coli and S.aureus) and the fungus C.albicans (PubMed:15118082).<ref>PMID:12527813</ref> <ref>PMID:15118082</ref> <ref>PMID:20007782</ref> <ref>PMID:2477548</ref> <ref>PMID:31276191</ref> <ref>PMID:7517498</ref> <ref>PMID:8204618</ref>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Drakopoulou, E]]
[[Category: Leiurus hebraeus]]
[[Category: Gilquin, B]]
[[Category: Drakopoulou E]]
[[Category: Guenneugues, M]]
[[Category: Gilquin B]]
[[Category: Menez, A]]
[[Category: Guenneugues M]]
[[Category: Vita, C]]
[[Category: Menez A]]
[[Category: Zinn-Justin, S]]
[[Category: Vita C]]
[[Category: Antagonist of nicotinic acetylcholine receptor]]
[[Category: Zinn-Justin S]]
[[Category: Curaremimetic protein]]

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