+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-35198 | |||||||||
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Title | Structure of human Nav1.7 in complex with vixotrigine | |||||||||
Map data | ||||||||||
Sample |
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Keywords | Inhibitor complex. / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information 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 cardiac muscle cell action potential / membrane depolarization during Purkinje myocyte cell action potential / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction / regulation of sodium ion transmembrane transport ...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 cardiac muscle cell action potential / membrane depolarization during Purkinje myocyte cell action potential / voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization / regulation of atrial cardiac muscle cell membrane depolarization / cardiac conduction / regulation of sodium ion transmembrane transport / membrane depolarization during cardiac muscle cell action potential / membrane depolarization during action potential / positive regulation of sodium ion transport / node of Ranvier / voltage-gated sodium channel complex / cardiac muscle cell action potential involved in contraction / locomotion / regulation of ventricular cardiac muscle cell membrane repolarization / sodium channel inhibitor activity / neuronal action potential propagation / Interaction between L1 and Ankyrins / voltage-gated sodium channel activity / sodium ion transport / Phase 0 - rapid depolarisation / regulation of heart rate by cardiac conduction / detection of temperature stimulus involved in sensory perception of pain / behavioral response to pain / membrane depolarization / intercalated disc / sodium channel regulator activity / sodium ion transmembrane transport / cardiac muscle contraction / sensory perception of pain / T-tubule / post-embryonic development / axon guidance / positive regulation of neuron projection development / Sensory perception of sweet, bitter, and umami (glutamate) taste / response to toxic substance / circadian rhythm / 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 | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.6 Å | |||||||||
Authors | Wu QR / Yan N | |||||||||
Funding support | China, United States, 2 items
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Citation | Journal: Nat Commun / Year: 2023 Title: Structural mapping of Na1.7 antagonists. Authors: Qiurong Wu / Jian Huang / Xiao Fan / Kan Wang / Xueqin Jin / Gaoxingyu Huang / Jiaao Li / Xiaojing Pan / Nieng Yan / Abstract: Voltage-gated sodium (Na) channels are targeted by a number of widely used and investigational drugs for the treatment of epilepsy, arrhythmia, pain, and other disorders. Despite recent advances in ...Voltage-gated sodium (Na) channels are targeted by a number of widely used and investigational drugs for the treatment of epilepsy, arrhythmia, pain, and other disorders. Despite recent advances in structural elucidation of Na channels, the binding mode of most Na-targeting drugs remains unknown. Here we report high-resolution cryo-EM structures of human Na1.7 treated with drugs and lead compounds with representative chemical backbones at resolutions of 2.6-3.2 Å. A binding site beneath the intracellular gate (site BIG) accommodates carbamazepine, bupivacaine, and lacosamide. Unexpectedly, a second molecule of lacosamide plugs into the selectivity filter from the central cavity. Fenestrations are popular sites for various state-dependent drugs. We show that vinpocetine, a synthetic derivative of a vinca alkaloid, and hardwickiic acid, a natural product with antinociceptive effect, bind to the III-IV fenestration, while vixotrigine, an analgesic candidate, penetrates the IV-I fenestration of the pore domain. Our results permit building a 3D structural map for known drug-binding sites on Na channels summarized from the present and previous structures. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_35198.map.gz | 59.6 MB | EMDB map data format | |
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Header (meta data) | emd-35198-v30.xml emd-35198.xml | 21.1 KB 21.1 KB | Display Display | EMDB header |
Images | emd_35198.png | 73.6 KB | ||
Filedesc metadata | emd-35198.cif.gz | 7.9 KB | ||
Others | emd_35198_half_map_1.map.gz emd_35198_half_map_2.map.gz | 59.3 MB 59.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-35198 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35198 | HTTPS FTP |
-Validation report
Summary document | emd_35198_validation.pdf.gz | 810.5 KB | Display | EMDB validaton report |
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Full document | emd_35198_full_validation.pdf.gz | 810.1 KB | Display | |
Data in XML | emd_35198_validation.xml.gz | 12.4 KB | Display | |
Data in CIF | emd_35198_validation.cif.gz | 14.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35198 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35198 | HTTPS FTP |
-Related structure data
Related structure data | 8i5yMC 8i5bC 8i5gC 8i5xC 8j4fC 8s9bC 8s9cC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_35198.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.0825 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_35198_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_35198_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : human Nav1.7 in complex with vixotrigine
+Supramolecule #1: human Nav1.7 in complex with vixotrigine
+Macromolecule #1: Sodium channel protein type 9 subunit alpha
+Macromolecule #2: Sodium channel subunit beta-1
+Macromolecule #3: Sodium channel subunit beta-2
+Macromolecule #5: 2-acetamido-2-deoxy-beta-D-glucopyranose
+Macromolecule #6: O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phospho...
+Macromolecule #7: CHOLESTEROL HEMISUCCINATE
+Macromolecule #8: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]sp...
+Macromolecule #9: Vixotrigine
+Macromolecule #10: SODIUM ION
+Macromolecule #11: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE
+Macromolecule #12: (2S,3R,4E)-2-(acetylamino)-3-hydroxyoctadec-4-en-1-yl dihydrogen ...
+Macromolecule #13: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
+Macromolecule #14: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: EMDB MAP EMDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 535763 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |