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==Structure of human voltage-gated sodium channel Nav1.7 in complex with auxiliary beta subunits, ProTx-II and tetrodotoxin (Y1755 down)==
==Structure of human voltage-gated sodium channel Nav1.7 in complex with auxiliary beta subunits, ProTx-II and tetrodotoxin (Y1755 down)==
<StructureSection load='6j8j' size='340' side='right' caption='[[6j8j]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
<SX load='6j8j' size='340' side='right' viewer='molstar' caption='[[6j8j]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6j8j]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6J8J OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6J8J FirstGlance]. <br>
<table><tr><td colspan='2'>[[6j8j]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6J8J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6J8J FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=9SR:(1R,5R,6R,7R,9S,11S,12S,13S,14S)-3-amino-14-(hydroxymethyl)-8,10-dioxa-2,4-diazatetracyclo[7.3.1.1~7,11~.0~1,6~]tetradec-3-ene-5,9,12,13,14-pentol+(non-preferred+name)'>9SR</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.2&#8491;</td></tr>
<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=6j8j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6j8j OCA], [http://pdbe.org/6j8j PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6j8j RCSB], [http://www.ebi.ac.uk/pdbsum/6j8j PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6j8j ProSAT]</span></td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=9SR:(1R,5R,6R,7R,9S,11S,12S,13S,14S)-3-amino-14-(hydroxymethyl)-8,10-dioxa-2,4-diazatetracyclo[7.3.1.1~7,11~.0~1,6~]tetradec-3-ene-5,9,12,13,14-pentol+(non-preferred+name)'>9SR</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=6j8j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6j8j OCA], [https://pdbe.org/6j8j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6j8j RCSB], [https://www.ebi.ac.uk/pdbsum/6j8j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6j8j ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== Disease ==
[[http://www.uniprot.org/uniprot/SCN2B_HUMAN SCN2B_HUMAN]] Familial atrial fibrillation. The disease is caused by mutations affecting the gene represented in this entry.  Genetic variations in SCN2B may be involved in Brugada syndrome (PubMed:23559163). This tachyarrhythmia is characterized by right bundle branch block and ST segment elevation on an electrocardiogram (ECG). It can cause the ventricles to beat so fast that the blood is prevented from circulating efficiently in the body. When this situation occurs, the individual will faint and may die in a few minutes if the heart is not reset.<ref>PMID:23559163</ref> [[http://www.uniprot.org/uniprot/SCN1B_HUMAN SCN1B_HUMAN]] Dravet syndrome;Familial progressive cardiac conduction defect;Generalized epilepsy with febrile seizures-plus;Brugada syndrome. The disease is caused by mutations affecting the gene represented in this entry.  The gene represented in this entry may be involved in disease pathogenesis.  The disease is caused by mutations affecting the gene represented in this entry.  The disease is caused by mutations affecting the gene represented in this entry. [[http://www.uniprot.org/uniprot/SCN9A_HUMAN SCN9A_HUMAN]] Channelopathy-associated congenital insensitivity to pain;Dravet syndrome;Primary erythromelalgia;Sodium channelopathy-related small fiber neuropathy;Generalized epilepsy with febrile seizures-plus;Hereditary sensory and autonomic neuropathy type 2;Paroxysmal extreme pain disorder;Erythromelalgia. The disease is caused by mutations affecting the gene represented in this entry.  The disease is caused by mutations affecting the gene represented in this entry.  The disease is caused by mutations affecting the gene represented in this entry.  The disease is caused by mutations affecting the gene represented in this entry.  The disease is caused by mutations affecting the gene represented in this entry.
[https://www.uniprot.org/uniprot/SCN2B_HUMAN SCN2B_HUMAN] Familial atrial fibrillation. The disease is caused by mutations affecting the gene represented in this entry.  Genetic variations in SCN2B may be involved in Brugada syndrome (PubMed:23559163). This tachyarrhythmia is characterized by right bundle branch block and ST segment elevation on an electrocardiogram (ECG). It can cause the ventricles to beat so fast that the blood is prevented from circulating efficiently in the body. When this situation occurs, the individual will faint and may die in a few minutes if the heart is not reset.<ref>PMID:23559163</ref>  
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/SCN2B_HUMAN SCN2B_HUMAN]] Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-2 causes an increase in the plasma membrane surface area and in its folding into microvilli. Interacts with TNR may play a crucial role in clustering and regulation of activity of sodium channels at nodes of Ranvier (By similarity). [[http://www.uniprot.org/uniprot/SCN1B_HUMAN SCN1B_HUMAN]] Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-1 can modulate multiple alpha subunit isoforms from brain, skeletal muscle, and heart. Its association with NFASC may target the sodium channels to the nodes of Ranvier of developing axons and retain these channels at the nodes in mature myelinated axons.<ref>PMID:14622265</ref>  Isoform 2: Cell adhesion molecule that plays a critical role in neuronal migration and pathfinding during brain development. Stimulates neurite outgrowth.<ref>PMID:14622265</ref>  [[http://www.uniprot.org/uniprot/SCN9A_HUMAN SCN9A_HUMAN]] Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient (PubMed:7720699, PubMed:17167479, PubMed:25240195, PubMed:26680203, PubMed:15385606, PubMed:16988069, PubMed:17145499, PubMed:19369487, PubMed:24311784). It is a tetrodotoxin-sensitive Na(+) channel isoform (PubMed:7720699). Plays a role in pain mechanisms, especially in the development of inflammatory pain (PubMed:17167479, PubMed:17145499, PubMed:19369487, PubMed:24311784).<ref>PMID:15178348</ref> <ref>PMID:15385606</ref> <ref>PMID:16988069</ref> <ref>PMID:17145499</ref> <ref>PMID:17167479</ref> <ref>PMID:19369487</ref> <ref>PMID:24311784</ref> <ref>PMID:25240195</ref> <ref>PMID:26680203</ref> <ref>PMID:7720699</ref> 
[https://www.uniprot.org/uniprot/SCN2B_HUMAN SCN2B_HUMAN] Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-2 causes an increase in the plasma membrane surface area and in its folding into microvilli. Interacts with TNR may play a crucial role in clustering and regulation of activity of sodium channels at nodes of Ranvier (By similarity).
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<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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</div>
</div>
<div class="pdbe-citations 6j8j" style="background-color:#fffaf0;"></div>
<div class="pdbe-citations 6j8j" style="background-color:#fffaf0;"></div>
==See Also==
*[[Ion channels 3D structures|Ion channels 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</SX>
[[Category: Lei, J]]
[[Category: Homo sapiens]]
[[Category: Liu, D]]
[[Category: Large Structures]]
[[Category: Shen, H]]
[[Category: Lei J]]
[[Category: Yan, N]]
[[Category: Liu D]]
[[Category: Membrane protein]]
[[Category: Shen H]]
[[Category: Voltage-gated sodium channel]]
[[Category: Yan N]]
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