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- EMDB-32372: Cryo-EM structure of human Nav1.7(E406K) in complex with auxiliar... -

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Basic information

Entry
Database: EMDB / ID: EMD-32372
TitleCryo-EM structure of human Nav1.7(E406K) in complex with auxiliary beta subunits, huwentoxin-IV and saxitoxin (S6IV alpha helix conformer)
Map data
Sample
  • Complex: human Nav1.7 in complex with beta1, beta2 and Huwentoxin
    • Protein or peptide: Sodium channel protein type 9 subunit alpha
    • Protein or peptide: Sodium channel subunit beta-1
    • Protein or peptide: Sodium channel subunit beta-2
  • Ligand: [(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
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine
  • Ligand: CHOLESTEROL HEMISUCCINATE
  • Ligand: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en
  • Ligand: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
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 / membrane depolarization during Purkinje myocyte cell 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 / 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 / membrane depolarization during Purkinje myocyte cell 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 / 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 / behavioral response to pain / voltage-gated calcium channel complex / regulation of heart rate by cardiac conduction / Phase 0 - rapid depolarisation / detection of temperature stimulus involved in sensory perception of pain / calcium ion import across plasma membrane / membrane depolarization / sodium ion transmembrane transport / sodium channel regulator activity / intercalated disc / sensory perception of pain / cardiac muscle contraction / 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 / gene expression / nervous system development / response to heat / chemical synaptic transmission / perikaryon / 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
Sodium channel subunit beta-2 / Sodium channel subunit beta-1 / Sodium channel protein type 9 subunit alpha
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.0 Å
AuthorsYan N / Huang G / Liu D / Wei P
Funding support China, 1 items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China) China
CitationJournal: Cell Rep / Year: 2022
Title: High-resolution structures of human Na1.7 reveal gating modulation through α-π helical transition of S6.
Authors: Gaoxingyu Huang / Dongliang Liu / Weipeng Wang / Qiurong Wu / Jiaofeng Chen / Xiaojing Pan / Huaizong Shen / Nieng Yan /
Abstract: Na1.7 represents a preeminent target for next-generation analgesics for its critical role in pain sensation. Here we report a 2.2-Å resolution cryo-EM structure of wild-type (WT) Na1.7 complexed ...Na1.7 represents a preeminent target for next-generation analgesics for its critical role in pain sensation. Here we report a 2.2-Å resolution cryo-EM structure of wild-type (WT) Na1.7 complexed with the β1 and β2 subunits that reveals several previously indiscernible cytosolic segments. Reprocessing of the cryo-EM data for our reported structures of Na1.7(E406K) bound to various toxins identifies two distinct conformations of S6, one composed of α helical turns only and the other containing a π helical turn in the middle. The structure of ligand-free Na1.7(E406K), determined at 3.5-Å resolution, is identical to the WT channel, confirming that binding of Huwentoxin IV or Protoxin II to VSD allosterically induces the α → π transition of S6. The local secondary structural shift leads to contraction of the intracellular gate, closure of the fenestration on the interface of repeats I and IV, and rearrangement of the binding site for the fast inactivation motif.
History
DepositionDec 10, 2021-
Header (metadata) releaseMay 25, 2022-
Map releaseMay 25, 2022-
UpdateMay 25, 2022-
Current statusMay 25, 2022Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_32372.png

Downloads & links

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Map

FileDownload / File: emd_32372.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.091 Å
Density
Contour LevelBy AUTHOR: 0.63
Minimum - Maximum-1.307685 - 2.8761911
Average (Standard dev.)0.0075385915 (±0.09797498)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions240240240
Spacing240240240
CellA=B=C: 261.84 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : human Nav1.7 in complex with beta1, beta2 and Huwentoxin

EntireName: human Nav1.7 in complex with beta1, beta2 and Huwentoxin
Components
  • Complex: human Nav1.7 in complex with beta1, beta2 and Huwentoxin
    • Protein or peptide: Sodium channel protein type 9 subunit alpha
    • Protein or peptide: Sodium channel subunit beta-1
    • Protein or peptide: Sodium channel subunit beta-2
  • Ligand: [(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
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine
  • Ligand: CHOLESTEROL HEMISUCCINATE
  • Ligand: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en
  • Ligand: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE

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Supramolecule #1: human Nav1.7 in complex with beta1, beta2 and Huwentoxin

SupramoleculeName: human Nav1.7 in complex with beta1, beta2 and Huwentoxin
type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)

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Macromolecule #1: Sodium channel protein type 9 subunit alpha

MacromoleculeName: Sodium channel protein type 9 subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 231.211922 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MASWSHPQFE KGGGARGGSG GGSWSHPQFE KGFDYKDDDD KGTMAMLPPP GPQSFVHFTK QSLALIEQRI AERKSKEPKE EKKDDDEEA PKPSSDLEAG KQLPFIYGDI PPGMVSEPLE DLDPYYADKK TFIVLNKGKT IFRFNATPAL YMLSPFSPLR R ISIKILVH ...String:
MASWSHPQFE KGGGARGGSG GGSWSHPQFE KGFDYKDDDD KGTMAMLPPP GPQSFVHFTK QSLALIEQRI AERKSKEPKE EKKDDDEEA PKPSSDLEAG KQLPFIYGDI PPGMVSEPLE DLDPYYADKK TFIVLNKGKT IFRFNATPAL YMLSPFSPLR R ISIKILVH SLFSMLIMCT ILTNCIFMTM NNPPDWTKNV EYTFTGIYTF ESLVKILARG FCVGEFTFLR DPWNWLDFVV IV FAYLTEF VNLGNVSALR TFRVLRALKT ISVIPGLKTI VGALIQSVKK LSDVMILTVF CLSVFALIGL QLFMGNLKHK CFR NSLENN ETLESIMNTL ESEEDFRKYF YYLEGSKDAL LCGFSTDSGQ CPEGYTCVKI GRNPDYGYTS FDTFSWAFLA LFRL MTQDY WENLYQQTLR AAGKTYMIFF VVVIFLGSFY LINLILAVVA MAYKEQNQAN IEEAKQKELE FQQMLDRLKK EQEEA EAIA AAAAEYTSIR RSRIMGLSES SSETSKLSSK SAKERRNRRK KKNQKKLSSG EEKGDAEKLS KSESEDSIRR KSFHLG VEG HRRAHEKRLS TPNQSPLSIR GSLFSARRSS RTSLFSFKGR GRDIGSETEF ADDEHSIFGD NESRRGSLFV PHRPQER RS SNISQASRSP PMLPVNGKMH SAVDCNGVVS LVDGRSALML PNGQLLPEVI IDKATSDDSG TTNQIHKKRR CSSYLLSE D MLNDPNLRQR AMSRASILTN TVEELEESRQ KCPPWWYRFA HKFLIWNCSP YWIKFKKCIY FIVMDPFVDL AITICIVLN TLFMAMEHHP MTEEFKNVLA IGNLVFTGIF AAEMVLKLIA MDPYEYFQVG WNIFDSLIVT LSLVELFLAD VEGLSVLRSF RLLRVFKLA KSWPTLNMLI KIIGNSVGAL GNLTLVLAII VFIFAVVGMQ LFGKSYKECV CKINDDCTLP RWHMNDFFHS F LIVFRVLC GEWIETMWDC MEVAGQAMCL IVYMMVMVIG NLVVLNLFLA LLLSSFSSDN LTAIEEDPDA NNLQIAVTRI KK GINYVKQ TLREFILKAF SKKPKISREI RQAEDLNTKK ENYISNHTLA EMSKGHNFLK EKDKISGFGS SVDKHLMEDS DGQ SFIHNP SLTVTVPIAP GESDLENMNA EELSSDSDSE YSKVRLNRSS SSECSTVDNP LPGEGEEAEA EPMNSDEPEA CFTD GCVWR FSCCQVNIES GKGKIWWNIR KTCYKIVEHS WFESFIVLMI LLSSGALAFE DIYIERKKTI KIILEYADKI FTYIF ILEM LLKWIAYGYK TYFTNAWCWL DFLIVDVSLV TLVANTLGYS DLGPIKSLRT LRALRPLRAL SRFEGMRVVV NALIGA IPS IMNVLLVCLI FWLIFSIMGV NLFAGKFYEC INTTDGSRFP ASQVPNRSEC FALMNVSQNV RWKNLKVNFD NVGLGYL SL LQVATFKGWT IIMYAAVDSV NVDKQPKYEY SLYMYIYFVV FIIFGSFFTL NLFIGVIIDN FNQQKKKLGG QDIFMTEE Q KKYYNAMKKL GSKKPQKPIP RPGNKIQGCI FDLVTNQAFD ISIMVLICLN MVTMMVEKEG QSQHMTEVLY WINVVFIIL FTGECVLKLI SLRHYYFTVG WNIFDFVVVI ISIVGMFLAD LIETYFVSPT LFRVIRLARI GRILRLVKGA KGIRTLLFAL MMSLPALFN IGLLLFLVMF IYAIFGMSNF AYVKKEDGIN DMFNFETFGN SMICLFQITT SAGWDGLLAP ILNSKPPDCD P KKVHPGSS VEGDCGNPSV GIFYFVSYII ISFLVVVNMY IAVILENFSV ATEESTEPLS EDDFEMFYEV WEKFDPDATQ FI EFSKLSD FAAALDPPLL IAKPNKVQLI AMDLPMVSGD RIHCLDILFA FTKRVLGESG EMDSLRSQME ERFMSANPSK VSY EPITTT LKRKQEDVSA TVIQRAYRRY RLRQNVKNIS SIYIKDGDRD DDLLNKKDMA FDNVNENSSP EKTDATSSTT SPPS YDSVT KPDKEKYEQD RTEKEDKGKD SKESKK

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Macromolecule #2: Sodium channel subunit beta-1

MacromoleculeName: Sodium channel subunit beta-1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.732115 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MGRLLALVVG AALVSSACGG CVEVDSETEA VYGMTFKILC ISCKRRSETN AETFTEWTFR QKGTEEFVKI LRYENEVLQL EEDERFEGR VVWNGSRGTK DLQDLSIFIT NVTYNHSGDY ECHVYRLLFF ENYEHNTSVV KKIHIEVVDK ANRDMASIVS E IMMYVLIV ...String:
MGRLLALVVG AALVSSACGG CVEVDSETEA VYGMTFKILC ISCKRRSETN AETFTEWTFR QKGTEEFVKI LRYENEVLQL EEDERFEGR VVWNGSRGTK DLQDLSIFIT NVTYNHSGDY ECHVYRLLFF ENYEHNTSVV KKIHIEVVDK ANRDMASIVS E IMMYVLIV VLTIWLVAEM IYCYKKIAAA TETAAQENAS EYLAITSESK ENCTGVQVAE

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Macromolecule #3: Sodium channel subunit beta-2

MacromoleculeName: Sodium channel subunit beta-2 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.355859 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MHRDAWLPRP AFSLTGLSLF FSLVPPGRSM EVTVPATLNV LNGSDARLPC TFNSCYTVNH KQFSLNWTYQ ECNNCSEEMF LQFRMKIIN LKLERFQDRV EFSGNPSKYD VSVMLRNVQP EDEGIYNCYI MNPPDRHRGH GKIHLQVLME EPPERDSTVA V IVGASVGG ...String:
MHRDAWLPRP AFSLTGLSLF FSLVPPGRSM EVTVPATLNV LNGSDARLPC TFNSCYTVNH KQFSLNWTYQ ECNNCSEEMF LQFRMKIIN LKLERFQDRV EFSGNPSKYD VSVMLRNVQP EDEGIYNCYI MNPPDRHRGH GKIHLQVLME EPPERDSTVA V IVGASVGG FLAVVILVLM VVKCVRRKKE QKLSTDDLKT EEEGKTDGEG NPDDGAK

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Macromolecule #5: [(3aS,4R,10aS)-2,6-diamino-10,10-dihydroxy-3a,4,9,10-tetrahydro-3...

MacromoleculeName: [(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
type: ligand / ID: 5 / Number of copies: 1 / Formula: 9SL
Molecular weightTheoretical: 299.286 Da
Chemical component information

ChemComp-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 / neurotoxin*YM / Saxitoxin

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Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 5 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

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Macromolecule #7: O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phospho...

MacromoleculeName: O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine
type: ligand / ID: 7 / Number of copies: 2 / Formula: P5S
Molecular weightTheoretical: 792.075 Da
Chemical component information

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

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Macromolecule #8: CHOLESTEROL HEMISUCCINATE

MacromoleculeName: CHOLESTEROL HEMISUCCINATE / type: ligand / ID: 8 / Number of copies: 5 / Formula: Y01
Molecular weightTheoretical: 486.726 Da
Chemical component information

ChemComp-Y01:
CHOLESTEROL HEMISUCCINATE

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Macromolecule #9: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]sp...

MacromoleculeName: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en
type: ligand / ID: 9 / Number of copies: 1 / Formula: 9Z9
Molecular weightTheoretical: 544.805 Da
Chemical component information

ChemComp-9Z9:
(3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en / detergent*YM

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Macromolecule #10: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE

MacromoleculeName: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE / type: ligand / ID: 10 / Number of copies: 14 / Formula: LPE
Molecular weightTheoretical: 510.708 Da
Chemical component information

ChemComp-LPE:
1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE

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Macromolecule #11: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE

MacromoleculeName: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / type: ligand / ID: 11 / Number of copies: 5 / Formula: PCW
Molecular weightTheoretical: 787.121 Da
Chemical component information

ChemComp-PCW:
1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / DOPC, phospholipid*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.5 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

9781

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 165021

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