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- EMDB-46907: 4 Angstrom structure of the human TRPV3 pentamer -

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Basic information

Entry
Database: EMDB / ID: EMD-46907
Title4 Angstrom structure of the human TRPV3 pentamer
Map data4 Angstrom structure of the human TRPV3 pentamer
Sample
  • Complex: TRPV3 ion channel
    • Protein or peptide: Transient receptor potential cation channel subfamily V member 3
KeywordsIon channel / transient receptor potential channel / alternative oligomeric state / pore dilation / MEMBRANE PROTEIN
Function / homology
Function and homology information


negative regulation of hair cycle / osmosensory signaling pathway / TRP channels / response to temperature stimulus / sodium channel activity / positive regulation of calcium ion import / calcium ion import across plasma membrane / actin filament organization / calcium ion transmembrane transport / calcium channel activity ...negative regulation of hair cycle / osmosensory signaling pathway / TRP channels / response to temperature stimulus / sodium channel activity / positive regulation of calcium ion import / calcium ion import across plasma membrane / actin filament organization / calcium ion transmembrane transport / calcium channel activity / lysosome / receptor complex / cilium / metal ion binding / identical protein binding / plasma membrane / cytoplasm
Similarity search - Function
Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Ankyrin repeats (3 copies) / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein
Similarity search - Domain/homology
Transient receptor potential cation channel subfamily V member 3
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.07 Å
AuthorsLansky S / Clarke OB / Scheuring S
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)R01NS134559 United States
National Institutes of Health/National Center for Complementary and Integrative Health (NIH/NCCIH)DP1AT010874 United States
CitationJournal: Nat Commun / Year: 2025
Title: Structural dynamics and permeability of the TRPV3 pentamer.
Authors: Shifra Lansky / Zhaokun Wang / Oliver B Clarke / Christophe Chipot / Simon Scheuring /
Abstract: TRPV3 belongs to the large superfamily of tetrameric transient receptor potential (TRP) ion channels. Recently, using high-speed atomic force microscopy (HS-AFM), we discovered a rare and transient ...TRPV3 belongs to the large superfamily of tetrameric transient receptor potential (TRP) ion channels. Recently, using high-speed atomic force microscopy (HS-AFM), we discovered a rare and transient pentameric state for TRPV3 that is in equilibrium with the tetrameric state, and, using cryo-EM, we solved a low-resolution structure of the TRPV3 pentamer, in which, however, many residues were unresolved. Here, we present a higher resolution and more complete structure of the pentamer, revealing a domain-swapped architecture, a collapsed vanilloid binding site, and a large pore. Molecular dynamics simulations and potential of mean force calculations of the pentamer establish high protein dynamics and permeability to large cations. Subunit interface analysis, together with thermal denaturation experiments, led us to propose a molecular mechanism of the tetramer-to-pentamer transition, backed experimentally by HS-AFM observations. Collectively, our data demonstrate that the TRPV3 pentamer is in a hyper-activated state with unique, highly permissive permeation properties.
History
DepositionSep 5, 2024-
Header (metadata) releaseMay 21, 2025-
Map releaseMay 21, 2025-
UpdateMay 28, 2025-
Current statusMay 28, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_46907.png

Downloads & links

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Map

FileDownload / File: emd_46907.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation4 Angstrom structure of the human TRPV3 pentamer
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.08 Å/pix.
x 256 pix.
= 275.456 Å		1.08 Å/pix.
x 256 pix.
= 275.456 Å		1.08 Å/pix.
x 256 pix.
= 275.456 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.076 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.101
Minimum - Maximum-0.68528354 - 1.0444889
Average (Standard dev.)0.0013751604 (±0.032175925)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 275.456 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half Map B

Fileemd_46907_half_map_1.map
AnnotationHalf Map B
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map A

Fileemd_46907_half_map_2.map
AnnotationHalf Map A
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : TRPV3 ion channel

EntireName: TRPV3 ion channel
Components
  • Complex: TRPV3 ion channel
    • Protein or peptide: Transient receptor potential cation channel subfamily V member 3

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Supramolecule #1: TRPV3 ion channel

SupramoleculeName: TRPV3 ion channel / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Transient receptor potential cation channel subfamily V member 3

MacromoleculeName: Transient receptor potential cation channel subfamily V member 3
type: protein_or_peptide / ID: 1 / Number of copies: 5 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 92.669 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MKAHPKEMVP LMGKRVAAPS GNPAILPEKR PAEITPTKKS AHFFLEIEGF EPNPTVAKTS PPVFSKPMDS NIRQCISGNC DDMDSPQSP QDDVTETPSN PNSPSAQLAK EEQRRKKRRL KKRIFAAVSE GCVEELVELL VELQELCRRR HDEDVPDFLM H KLTASDTG ...String:
MKAHPKEMVP LMGKRVAAPS GNPAILPEKR PAEITPTKKS AHFFLEIEGF EPNPTVAKTS PPVFSKPMDS NIRQCISGNC DDMDSPQSP QDDVTETPSN PNSPSAQLAK EEQRRKKRRL KKRIFAAVSE GCVEELVELL VELQELCRRR HDEDVPDFLM H KLTASDTG KTCLMKALLN INPNTKEIVR ILLAFAEEND ILGRFINAEY TEEAYEGQTA LNIAIERRQG DIAALLIAAG AD VNAHAKG AFFNPKYQHE GFYFGETPLA LAACTNQPEI VQLLMEHEQT DITSRDSRGN NILHALVTVA EDFKTQNDFV KRM YDMILL RSGNWELETT RNNDGLTPLQ LAAKMGKAEI LKYILSREIK EKRLRSLSRK FTDWAYGPVS SSLYDLTNVD TTTD NSVLE ITVYNTNIDN RHEMLTLEPL HTLLHMKWKK FAKHMFFLSF CFYFFYNITL TLVSYYRPRE EEAIPHPLAL THKMG WLQL LGRMFVLIWA MCISVKEGIA IFLLRPSDLQ SILSDAWFHF VFFIQAVLVI LSVFLYLFAY KEYLACLVLA MALGWA NML YYTRGFQSMG MYSVMIQKVI LHDVLKFLFV YIVFLLGFGV ALASLIEKCP KDNKDCSSYG SFSDAVLELF KLTIGLG DL NIQQNSKYPI LFLFLLITYV ILTFVLLLNM LIALMGETVE NVSKESERIW RLQRARTILE FEKMLPEWLR SRFRMGEL C KVAEDDFRLC LRINEVKWTE WKTHVSFLNE DPGPVRRTDF NKIQDSSRNN SKTTLNAFEE VEEFPETSVL EVLFQGPWS HPQFEK

UniProtKB: Transient receptor potential cation channel subfamily V member 3

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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

Concentration3 mg/mL
BufferpH: 8
Component:
ConcentrationFormulaName
10.0 mMTristris(hydroxymethyl)aminomethane
150.0 mMNaClsodium chloride
0.01 %GDNglyco diosgenin
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Number real images: 10118 / Average electron dose: 53.27 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 0.001 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 64000
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 3668517
CTF correctionSoftware - Name: cryoSPARC / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C5 (5 fold cyclic) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 4.07 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 51588
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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