[English] 日本語
Yorodumi
- EMDB-46943: Cryo-EM structure of human Nav1.6 in complex with PaurTx3 -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-46943
TitleCryo-EM structure of human Nav1.6 in complex with PaurTx3
Map data
Sample
  • Complex: Nav1.6-PaurTx3
    • Protein or peptide: x 3 types
  • Ligand: x 9 types
KeywordsNav1.6 / voltage gated sodium channel / cryo-EM / toxin / PaurTx3 / TRANSPORT PROTEIN-TOXIN complex
Function / homology
Function and homology information


venom-mediated inhibition of voltage-gated sodium channel activity / corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / regulation of atrial cardiac muscle cell membrane depolarization / sodium ion binding / membrane depolarization during Purkinje myocyte cell action potential / cardiac conduction / membrane depolarization during cardiac muscle cell action potential / membrane depolarization during action potential / positive regulation of sodium ion transport ...venom-mediated inhibition of voltage-gated sodium channel activity / corticospinal neuron axon guidance / positive regulation of voltage-gated sodium channel activity / regulation of atrial cardiac muscle cell membrane depolarization / sodium ion binding / membrane depolarization during Purkinje myocyte cell action potential / cardiac conduction / membrane depolarization during cardiac muscle cell action potential / membrane depolarization during action potential / positive regulation of sodium ion transport / regulation of sodium ion transmembrane transport / peripheral nervous system development / axon initial segment / regulation of ventricular cardiac muscle cell membrane repolarization / cardiac muscle cell action potential involved in contraction / node of Ranvier / voltage-gated sodium channel complex / sodium channel inhibitor activity / locomotion / neuronal action potential propagation / Interaction between L1 and Ankyrins / podosome / anchoring junction / voltage-gated sodium channel activity / sodium ion transport / Phase 0 - rapid depolarisation / regulation of heart rate by cardiac conduction / action potential / intercalated disc / sodium channel regulator activity / membrane depolarization / cardiac muscle contraction / myelination / T-tubule / sodium ion transmembrane transport / axon guidance / positive regulation of neuron projection development / Z disc / Sensory perception of sweet, bitter, and umami (glutamate) taste / cell junction / toxin activity / cytoplasmic vesicle / perikaryon / transmembrane transporter binding / cell adhesion / axon / extracellular space / extracellular region / membrane / plasma membrane
Similarity search - Function
Voltage gated sodium channel, alpha-8 subunit / Huwentoxin, conserved site-1 / Huwentoxin-1 family signature. / Huwentoxin-1 family / Ion channel inhibitory toxin / Sodium channel subunit beta-1/beta-3 / Voltage-gated Na+ ion channel, cytoplasmic domain / Cytoplasmic domain of voltage-gated Na+ ion channel / Sodium ion transport-associated / Voltage-gated sodium channel alpha subunit, inactivation gate ...Voltage gated sodium channel, alpha-8 subunit / Huwentoxin, conserved site-1 / Huwentoxin-1 family signature. / Huwentoxin-1 family / Ion channel inhibitory toxin / Sodium channel subunit beta-1/beta-3 / Voltage-gated Na+ ion channel, cytoplasmic domain / Cytoplasmic domain of voltage-gated Na+ ion channel / Sodium ion transport-associated / Voltage-gated sodium channel alpha subunit, inactivation gate / Sodium ion transport-associated / SCN5A-like, C-terminal IQ motif / 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 / IQ motif profile. / Voltage-dependent channel domain superfamily / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Ion transport domain / Ion transport protein / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
Beta-theraphotoxin-Ps1a / Sodium channel regulatory subunit beta-1 / Sodium channel protein type 8 subunit alpha
Similarity search - Component
Biological speciesHomo sapiens (human) / Paraphysa scrofa (spider)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsFan X / Huang J / Yan N
Funding support France, 1 items
OrganizationGrant numberCountry
Human Frontier Science Program (HFSP)LT000754/2020-L France
CitationJournal: To Be Published
Title: Diverse modulation mechanisms of human Nav1.6 by gating modifier neurotoxins
Authors: Fan X / Jian H / Chen J / Wang H / Wu Q / Liu T / Guo Q / Shen Z / Pan X / Jin X / Yan N
History
DepositionSep 8, 2024-
Header (metadata) releaseSep 17, 2025-
Map releaseSep 17, 2025-
UpdateSep 17, 2025-
Current statusSep 17, 2025Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_46943.png

Downloads & links

-
Map

FileDownload / File: emd_46943.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.04 Å/pix.
x 320 pix.
= 331.52 Å		1.04 Å/pix.
x 320 pix.
= 331.52 Å		1.04 Å/pix.
x 320 pix.
= 331.52 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.036 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.09
Minimum - Maximum-0.29170334 - 0.56086725
Average (Standard dev.)-0.00035530637 (±0.013633005)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 331.52002 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Mask #1

Fileemd_46943_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Additional map: #1

Fileemd_46943_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_46943_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #1

Fileemd_46943_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

+
Entire : Nav1.6-PaurTx3

EntireName: Nav1.6-PaurTx3
Components
  • Complex: Nav1.6-PaurTx3
    • Protein or peptide: Sodium channel protein type 8 subunit alpha
    • Protein or peptide: Sodium channel subunit beta-1
    • Protein or peptide: Beta-theraphotoxin-Ps1a
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: CHOLESTEROL HEMISUCCINATE
  • Ligand: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: CHOLESTEROL
  • Ligand: O-[(R)-{[(2R)-2,3-bis(octadecanoyloxy)propyl]oxy}(hydroxy)phosphoryl]-L-serine
  • Ligand: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: (3beta,14beta,17beta,25R)-3-[4-methoxy-3-(methoxymethyl)butoxy]spirost-5-en
  • Ligand: (5E,17R,20S)-23-amino-20-hydroxy-14,20-dioxo-15,19,21-trioxa-20lambda~5~-phosphatricos-5-en-17-yl hexadecanoate
  • Ligand: water

+
Supramolecule #1: Nav1.6-PaurTx3

SupramoleculeName: Nav1.6-PaurTx3 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Source (natural)Organism: Homo sapiens (human)

+
Macromolecule #1: Sodium channel protein type 8 subunit alpha

MacromoleculeName: Sodium channel protein type 8 subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 225.520609 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MAARLLAPPG PDSFKPFTPE SLANIERRIA ESKLKKPPKA DGSHREDDED SKPKPNSDLE AGKSLPFIYG DIPQGLVAVP LEDFDPYYL TQKTFVVLNR GKTLFRFSAT PALYILSPFN LIRRIAIKIL IHSVFSMIIM CTILTNCVFM TFSNPPDWSK N VEYTFTGI ...String:
MAARLLAPPG PDSFKPFTPE SLANIERRIA ESKLKKPPKA DGSHREDDED SKPKPNSDLE AGKSLPFIYG DIPQGLVAVP LEDFDPYYL TQKTFVVLNR GKTLFRFSAT PALYILSPFN LIRRIAIKIL IHSVFSMIIM CTILTNCVFM TFSNPPDWSK N VEYTFTGI YTFESLVKII ARGFCIDGFT FLRDPWNWLD FSVIMMAYIT EFVNLGNVSA LRTFRVLRAL KTISVIPGLK TI VGALIQS VKKLSDVMIL TVFCLSVFAL IGLQLFMGNL RNKCVVWPIN FNESYLENGT KGFDWEEYIN NKTNFYTVPG MLE PLLCGN SSDAGQCPEG YQCMKAGRNP NYGYTSFDTF SWAFLALFRL MTQDYWENLY QLTLRAAGKT YMIFFVLVIF VGSF YLVNL ILAVVAMAYE EQNQATLEEA EQKEAEFKAM LEQLKKQQEE AQAAAMATSA GTVSEDAIEE EGEEGGGSPR SSSEI SKLS SKSAKERRNR RKKRKQKELS EGEEKGDPEK VFKSESEDGM RRKAFRLPDN RIGRKFSIMN QSLLSIPGSP FLSRHN SKS SIFSFRGPGR FRDPGSENEF ADDEHSTVEE SEGRRDSLFI PIRARERRSS YSGYSGYSQG SRSSRIFPSL RRSVKRN ST VDCNGVVSLI GGPGSHIGGR LLPEATTEVE IKKKGPGSLL VSMDQLASYG RKDRINSIMS VVTNTLVEEL EESQRKCP P CWYKFANTFL IWECHPYWIK LKEIVNLIVM DPFVDLAITI CIVLNTLFMA MEHHPMTPQF EHVLAVGNLV FTGIFTAEM FLKLIAMDPY YYFQEGWNIF DGFIVSLSLM ELSLADVEGL SVLRSFRLLR VFKLAKSWPT LNMLIKIIGN SVGALGNLTL VLAIIVFIF AVVGMQLFGK SYKECVCKIN QDCELPRWHM HDFFHSFLIV FRVLCGEWIE TMWDCMEVAG QAMCLIVFMM V MVIGNLVV LNLFLALLLS SFSADNLAAT DDDGEMNNLQ ISVIRIKKGV AWTKLKVHAF MQAHFKQREA DEVKPLDELY EK KANCIAN HTGADIHRNG DFQKNGNGTT SGIGSSVEKY IIDEDHMSFI NNPNLTVRVP IAVGESDFEN LNTEDVSSES DPE GSKDKL DDTSSSEGST IDIKPEVEEV PVEQPEEYLD PDACFTEGCV QRFKCCQVNI EEGLGKSWWI LRKTCFLIVE HNWF ETFII FMILLSSGAL AFEDIYIEQR KTIRTILEYA DKVFTYIFIL EMLLKWTAYG FVKFFTNAWC WLDFLIVAVS LVSLI ANAL GYSELGAIKS LRTLRALRPL RALSRFEGMR VVVNALVGAI PSIMNVLLVC LIFWLIFSIM GVNLFAGKYH YCFNET SEI RFEIEDVNNK TECEKLMEGN NTEIRWKNVK INFDNVGAGY LALLQVATFK GWMDIMYAAV DSRKPDEQPK YEDNIYM YI YFVIFIIFGS FFTLNLFIGV IIDNFNQQKK KFGGQDIFMT EEQKKYYNAM KKLGSKKPQK PIPRPLNKIQ GIVFDFVT Q QAFDIVIMML ICLNMVTMMV ETDTQSKQME NILYWINLVF VIFFTCECVL KMFALRHYYF TIGWNIFDFV VVILSIVGM FLADIIEKYF VSPTLFRVIR LARIGRILRL IKGAKGIRTL LFALMMSLPA LFNIGLLLFL VMFIFSIFGM SNFAYVKHEA GIDDMFNFE TFGNSMICLF QITTSAGWDG LLLPILNRPP DCSLDKEHPG SGFKGDCGNP SVGIFFFVSY IIISFLIVVN M YIAIILEN FSVATEESAD PLSEDDFETF YEIWEKFDPD ATQFIEYCKL ADFADALEHP LRVPKPNTIE LIAMDLPMVS GD RIHCLDI LFAFTKRVLG DSGELDILRQ QMEERFVASN PSKVSYEPIT TTLRRKQEEV SAVVLQRAYR GHLARRGFIC KKT TSNKLE NGGTHREKKE STPSTASLPS YDSVTKPEKE KQQRAEEGRR ERAKRQKEVR ESKC

UniProtKB: Sodium channel protein type 8 subunit alpha

+
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

UniProtKB: Sodium channel regulatory subunit beta-1

+
Macromolecule #3: Beta-theraphotoxin-Ps1a

MacromoleculeName: Beta-theraphotoxin-Ps1a / type: protein_or_peptide / ID: 3 / Number of copies: 3 / Enantiomer: LEVO
Source (natural)Organism: Paraphysa scrofa (spider)
Molecular weightTheoretical: 4.072825 KDa
Recombinant expressionOrganism: Paraphysa scrofa (spider)
SequenceString:
DCLGFLWKCN PSNDKCCRPN LVCSRKDKWC KYQI

UniProtKB: Beta-theraphotoxin-Ps1a

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

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 7 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

+
Macromolecule #7: CHOLESTEROL HEMISUCCINATE

MacromoleculeName: CHOLESTEROL HEMISUCCINATE / type: ligand / ID: 7 / Number of copies: 3 / Formula: Y01
Molecular weightTheoretical: 486.726 Da
Chemical component information

ChemComp-Y01:
CHOLESTEROL HEMISUCCINATE

+
Macromolecule #8: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE

MacromoleculeName: 1,2-DIOLEOYL-SN-GLYCERO-3-PHOSPHOCHOLINE / type: ligand / ID: 8 / Number of copies: 4 / Formula: PCW
Molecular weightTheoretical: 787.121 Da
Chemical component information

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

+
Macromolecule #9: CHOLESTEROL

MacromoleculeName: CHOLESTEROL / type: ligand / ID: 9 / Number of copies: 1 / Formula: CLR
Molecular weightTheoretical: 386.654 Da
Chemical component information

ChemComp-CLR:
CHOLESTEROL

+
Macromolecule #10: 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: 10 / Number of copies: 1 / 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

+
Macromolecule #11: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE

MacromoleculeName: 1-O-OCTADECYL-SN-GLYCERO-3-PHOSPHOCHOLINE / type: ligand / ID: 11 / Number of copies: 1 / Formula: LPE
Molecular weightTheoretical: 510.708 Da
Chemical component information

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

+
Macromolecule #12: (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: 12 / 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

+
Macromolecule #13: (5E,17R,20S)-23-amino-20-hydroxy-14,20-dioxo-15,19,21-trioxa-20la...

MacromoleculeName: (5E,17R,20S)-23-amino-20-hydroxy-14,20-dioxo-15,19,21-trioxa-20lambda~5~-phosphatricos-5-en-17-yl hexadecanoate
type: ligand / ID: 13 / Number of copies: 1 / Formula: P3X
Molecular weightTheoretical: 661.89 Da
Chemical component information

ChemComp-P3X:
(5E,17R,20S)-23-amino-20-hydroxy-14,20-dioxo-15,19,21-trioxa-20lambda~5~-phosphatricos-5-en-17-yl hexadecanoate

+
Macromolecule #14: water

MacromoleculeName: water / type: ligand / ID: 14 / Number of copies: 15 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.5 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 312942
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more