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- PDB-8i5y: Structure of human Nav1.7 in complex with vixotrigine -

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Basic information

Entry
Database: PDB / ID: 8i5y
TitleStructure of human Nav1.7 in complex with vixotrigine
Components
  • (Sodium channel subunit beta- ...) x 2
  • Sodium channel protein type 9 subunit alpha
KeywordsMEMBRANE PROTEIN / Inhibitor complex.
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 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 / voltage-gated sodium channel complex / 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 / high voltage-gated calcium channel activity / locomotion / voltage-gated sodium channel activity / regulation of ventricular cardiac muscle cell membrane repolarization / sodium channel inhibitor activity / neuronal action potential propagation / Interaction between L1 and Ankyrins / sodium ion transport / voltage-gated calcium channel complex / behavioral response to pain / Phase 0 - rapid depolarisation / regulation of heart rate by cardiac conduction / membrane depolarization / detection of temperature stimulus involved in sensory perception of pain / calcium ion import across plasma membrane / intercalated disc / sodium channel regulator activity / sodium ion transmembrane transport / cardiac muscle contraction / sensory perception of pain / T-tubule / post-embryonic development / axon guidance / response to toxic substance / Sensory perception of sweet, bitter, and umami (glutamate) taste / positive regulation of neuron projection development / circadian rhythm / nervous system development / gene expression / response to heat / perikaryon / chemical synaptic transmission / transmembrane transporter binding / cell adhesion / inflammatory response / axon / synapse / extracellular region / plasma membrane
Similarity search - Function
Sodium channel subunit beta-1/beta-3 / Myelin P0 protein-related / Voltage-gated Na+ ion channel, cytoplasmic domain / Cytoplasmic domain of voltage-gated Na+ ion channel / Voltage-gated sodium channel alpha subunit, inactivation gate / Sodium ion transport-associated / Sodium ion transport-associated / Voltage gated sodium channel, alpha subunit / Voltage-gated cation channel calcium and sodium / Short calmodulin-binding motif containing conserved Ile and Gln residues. ...Sodium channel subunit beta-1/beta-3 / Myelin P0 protein-related / Voltage-gated Na+ ion channel, cytoplasmic domain / Cytoplasmic domain of voltage-gated Na+ ion channel / Voltage-gated sodium channel alpha subunit, inactivation gate / Sodium ion transport-associated / Sodium ion transport-associated / Voltage gated sodium channel, alpha subunit / Voltage-gated cation channel calcium and sodium / Short calmodulin-binding motif containing conserved Ile and Gln residues. / IQ motif, EF-hand binding site / Voltage-dependent channel domain superfamily / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Ion transport domain / Ion transport protein / Immunoglobulin subtype / Immunoglobulin / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
Chem-1PW / 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE / Chem-P5S / 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / Vixotrigine / CHOLESTEROL HEMISUCCINATE / Sodium channel subunit beta-2 / Sodium channel subunit beta-1 / Sodium channel protein type 9 subunit alpha
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å
AuthorsWu, Q.R. / Yan, N.
Funding support China, United States, 2items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32271252 China
N.Y. (supported by the Shirley M. Tilghman endowed professorship from Princeton University since 2017) United States
CitationJournal: 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
DepositionJan 26, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 14, 2023Provider: repository / Type: Initial release
Revision 1.1Nov 8, 2023Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / entity / pdbx_entity_nonpoly
Item: _chem_comp.name / _chem_comp.pdbx_synonyms ..._chem_comp.name / _chem_comp.pdbx_synonyms / _entity.pdbx_description / _pdbx_entity_nonpoly.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Sodium channel protein type 9 subunit alpha
B: Sodium channel subunit beta-1
C: Sodium channel subunit beta-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)297,51839
Polymers280,0103
Non-polymers17,50736
Water1086
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Sodium channel protein type 9 subunit alpha / / Neuroendocrine sodium channel / hNE-Na / Peripheral sodium channel 1 / PN1 / Sodium channel protein ...Neuroendocrine sodium channel / hNE-Na / Peripheral sodium channel 1 / PN1 / Sodium channel protein type IX subunit alpha / Voltage-gated sodium channel subunit alpha Nav1.7


Mass: 230922.500 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SCN9A, NENA / Production host: Homo sapiens (human) / References: UniProt: Q15858

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Sodium channel subunit beta- ... , 2 types, 2 molecules BC

#2: Protein Sodium channel subunit beta-1 /


Mass: 24732.115 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SCN1B / Production host: Homo sapiens (human) / References: UniProt: Q07699
#3: Protein Sodium channel subunit beta-2 / / Nav1.7 beta2 subunit


Mass: 24355.859 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SCN2B / Production host: Homo sapiens (human) / References: UniProt: O60939

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Sugars , 2 types, 8 molecules

#4: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#5: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 9 types, 34 molecules

#6: Chemical ChemComp-P5S / O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine / phosphatidyl serine / Phosphatidylserine


Mass: 792.075 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C42H82NO10P
#7: Chemical
ChemComp-Y01 / CHOLESTEROL HEMISUCCINATE


Mass: 486.726 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C31H50O4
#8: Chemical ChemComp-9Z9 / (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en


Mass: 544.805 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H56O5 / Comment: detergent*YM
#9: Chemical ChemComp-TB4 / Vixotrigine / (2~{S},5~{R})-5-[4-[(2-fluorophenyl)methoxy]phenyl]pyrrolidine-2-carboxamide


Mass: 314.354 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C18H19FN2O2
#10: Chemical ChemComp-NA / SODIUM ION


Mass: 22.990 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Na
#11: Chemical
ChemComp-LPE / 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE / LPC-ETHER


Mass: 510.708 Da / Num. of mol.: 14 / Source method: obtained synthetically / Formula: C26H57NO6P
#12: Chemical ChemComp-1PW / (2S,3R,4E)-2-(acetylamino)-3-hydroxyoctadec-4-en-1-yl dihydrogen phosphate


Mass: 421.508 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C20H40NO6P
#13: Chemical
ChemComp-PCW / 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / (Z,Z)-4-HYDROXY-N,N,N-TRIMETHYL-10-OXO-7-[(1-OXO-9-OCTADECENYL)OXY]-3,5,9-TRIOXA-4-PHOSPHAHEPTACOS-18-EN-1-AMINIUM-4-OXIDE


Mass: 787.121 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C44H85NO8P / Feature type: SUBJECT OF INVESTIGATION / Comment: DOPC, phospholipid*YM
#14: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 6 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: human Nav1.7 in complex with vixotrigine / Type: COMPLEX / Entity ID: #2-#3 / Source: RECOMBINANT
Molecular weightValue: 0.25 MDa / Experimental value: YES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1800 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.20.1_4487: / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 535763 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00314087
ELECTRON MICROSCOPYf_angle_d0.55319031
ELECTRON MICROSCOPYf_dihedral_angle_d8.6242391
ELECTRON MICROSCOPYf_chiral_restr0.0422171
ELECTRON MICROSCOPYf_plane_restr0.0042235

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