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- PDB-6j8i: Structure of human voltage-gated sodium channel Nav1.7 in complex... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6j8i | ||||||||||||||||||
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Title | Structure of human voltage-gated sodium channel Nav1.7 in complex with auxiliary beta subunits, ProTx-II and tetrodotoxin (Y1755 up) | ||||||||||||||||||
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![]() | MEMBRANE PROTEIN / voltage-gated sodium channel | ||||||||||||||||||
Function / homology | ![]() corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / response to pyrethroid / detection of mechanical stimulus involved in sensory perception / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / regulation of sodium ion transmembrane transporter activity / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / membrane depolarization during Purkinje myocyte cell action potential / regulation of atrial cardiac muscle cell membrane depolarization ...corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / response to pyrethroid / detection of mechanical stimulus involved in sensory perception / voltage-gated sodium channel activity involved in Purkinje myocyte action potential / voltage-gated sodium channel activity involved in cardiac muscle cell action potential / regulation of sodium ion transmembrane transporter activity / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / membrane depolarization during Purkinje myocyte cell action potential / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction / membrane depolarization during cardiac muscle cell action potential / positive regulation of sodium ion transport / node of Ranvier / cardiac muscle cell action potential involved in contraction / regulation of ventricular cardiac muscle cell membrane repolarization / voltage-gated sodium channel complex / sodium channel inhibitor activity / locomotion / neuronal action potential propagation / Interaction between L1 and Ankyrins / voltage-gated sodium channel activity / sodium ion transport / Phase 0 - rapid depolarisation / behavioral response to pain / regulation of heart rate by cardiac conduction / detection of temperature stimulus involved in sensory perception of pain / membrane depolarization / intercalated disc / sodium ion transmembrane transport / sodium channel regulator activity / cardiac muscle contraction / sensory perception of pain / T-tubule / post-embryonic development / axon guidance / circadian rhythm / response to toxic substance / Sensory perception of sweet, bitter, and umami (glutamate) taste / positive regulation of neuron projection development / nervous system development / gene expression / response to heat / chemical synaptic transmission / perikaryon / transmembrane transporter binding / cell adhesion / inflammatory response / axon / synapse / extracellular region / plasma membrane Similarity search - Function | ||||||||||||||||||
Biological species | ![]() | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||||||||
![]() | Shen, H. / Liu, D. / Lei, J. / Yan, N. | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structures of human Na1.7 channel in complex with auxiliary subunits and animal toxins. Authors: Huaizong Shen / Dongliang Liu / Kun Wu / Jianlin Lei / Nieng Yan / ![]() Abstract: Voltage-gated sodium channel Na1.7 represents a promising target for pain relief. Here we report the cryo-electron microscopy structures of the human Na1.7-β1-β2 complex bound to two combinations ...Voltage-gated sodium channel Na1.7 represents a promising target for pain relief. Here we report the cryo-electron microscopy structures of the human Na1.7-β1-β2 complex bound to two combinations of pore blockers and gating modifier toxins (GMTs), tetrodotoxin with protoxin-II and saxitoxin with huwentoxin-IV, both determined at overall resolutions of 3.2 angstroms. The two structures are nearly identical except for minor shifts of voltage-sensing domain II (VSD), whose S3-S4 linker accommodates the two GMTs in a similar manner. One additional protoxin-II sits on top of the S3-S4 linker in VSD The structures may represent an inactivated state with all four VSDs "up" and the intracellular gate closed. The structures illuminate the path toward mechanistic understanding of the function and disease of Na1.7 and establish the foundation for structure-aided development of analgesics. | ||||||||||||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 320.4 KB | Display | ![]() |
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PDB format | ![]() | 243.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 63.2 KB | Display | |
Data in CIF | ![]() | 91.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9782MC ![]() 9781C ![]() 6j8gC ![]() 6j8hC ![]() 6j8jC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Sodium channel subunit beta- ... , 2 types, 2 molecules CB
#1: Protein | Mass: 24355.859 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#3: Protein | Mass: 24732.115 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Protein / Non-polymers , 2 types, 2 molecules A![](data/chem/img/9SR.gif)
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#2: Protein | Mass: 231211.922 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#6: Chemical | ChemComp-9SR / ( |
-Sugars , 2 types, 9 molecules ![](data/chem/img/NAG.gif)
#4: Polysaccharide | Source method: isolated from a genetically manipulated source #5: Sugar | ChemComp-NAG / |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
Component | Name: Complex of human voltage-gated sodium channel Nav1.7 with auxiliary beta subunits, ProTx-II and tetrodotoxin Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 48 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.11.1_2575: / Classification: refinement | ||||||||||||||||||||||||
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EM software | Name: RELION / Version: 2.1 / Category: classification | ||||||||||||||||||||||||
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 263205 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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