6a91

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'''Unreleased structure'''
 
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The entry 6a91 is ON HOLD
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==Complex of voltage-gated sodium channel NavPaS from American cockroach Periplaneta americana bound with saxitoxin and Dc1a==
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<StructureSection load='6a91' size='340' side='right' caption='[[6a91]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[6a91]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A91 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6A91 FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=9SL:[(3aS,4R,10aS)-2,6-diamino-10,10-dihydroxy-3a,4,9,10-tetrahydro-3H,8H-pyrrolo[1,2-c]purin-4-yl]methyl+carbamate'>9SL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PC1:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE'>PC1</scene></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=6a91 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a91 OCA], [http://pdbe.org/6a91 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6a91 RCSB], [http://www.ebi.ac.uk/pdbsum/6a91 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6a91 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/SCNA1_PERAM SCNA1_PERAM]] Mediates the voltage-dependent sodium ion permeability of excitable membranes.[RuleBase:RU361132]<ref>PMID:28183995</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Animal toxins that modulate the activity of Nav channels are broadly divided into two categories-pore blockers and gating modifiers. The pore blockers tetrodotoxin (TTX) and saxitoxin (STX) are responsible for pufferfish and shellfish poisoning in humans, respectively. Here we present structures of the insect Nav channel NavPaS bound to a gating modifier toxin Dc1a at 2.8 A and in the presence of TTX or STX at 2.6 A and 3.2 A resolution, respectively. Dc1a inserts into the cleft between VSDII and the pore of NavPaS, making key contacts with both domains. The structures with bound TTX or STX reveal the molecular details for the specific blockade of Na(+) access to the selectivity filter from the extracellular side by these guanidinium toxins. The structures shed light on structure-based development of Nav channel drugs.
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Authors: Shen, H.Z., li, Z.Q., Jiang, Y., Pan, X.J., Wu, J.P., Cristofori-Armstrong, B., Smith, J.J., Chin, Y.K.Y., Lei, J.L., Zhou, Q., King, G.F., Yan, N.
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Structural basis for the modulation of voltage-gated sodium channels by animal toxins.,Shen H, Li Z, Jiang Y, Pan X, Wu J, Cristofori-Armstrong B, Smith JJ, Chin YKY, Lei J, Zhou Q, King GF, Yan N Science. 2018 Jul 26. pii: science.aau2596. doi: 10.1126/science.aau2596. PMID:30049784<ref>PMID:30049784</ref>
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Description: Complex of voltage-gated sodium channel NavPaS from American cockroach Periplaneta americana bound with saxitoxin and Dc1a
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[Category: Unreleased Structures]]
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</div>
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[[Category: Zhou, Q]]
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<div class="pdbe-citations 6a91" style="background-color:#fffaf0;"></div>
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[[Category: Chin, Y.K.Y]]
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== References ==
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[[Category: Yan, N]]
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<references/>
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[[Category: Smith, J.J]]
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__TOC__
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</StructureSection>
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[[Category: Chin, Y K.Y]]
[[Category: Cristofori-Armstrong, B]]
[[Category: Cristofori-Armstrong, B]]
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[[Category: Shen, H.Z]]
 
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[[Category: King, G.F]]
 
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[[Category: Lei, J.L]]
 
[[Category: Jiang, Y]]
[[Category: Jiang, Y]]
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[[Category: Wu, J.P]]
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[[Category: King, G F]]
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[[Category: Pan, X.J]]
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[[Category: Lei, J L]]
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[[Category: Li, Z.Q]]
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[[Category: Pan, X J]]
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[[Category: Shen, H Z]]
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[[Category: Smith, J J]]
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[[Category: Wu, J P]]
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[[Category: Yan, N]]
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[[Category: Zhou, Q]]
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[[Category: Li, Z Q]]
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[[Category: Complex]]
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[[Category: Membrane protein]]
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[[Category: Membrane protein-toxin complex]]
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[[Category: Sodium channel]]
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[[Category: Toxin]]

Revision as of 21:45, 9 August 2018

Complex of voltage-gated sodium channel NavPaS from American cockroach Periplaneta americana bound with saxitoxin and Dc1a

6a91, resolution 3.20Å

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