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- PDB-6mhv: Structure of human TRPV3 in the presence of 2-APB in C4 symmetry -

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Basic information

Entry
Database: PDB / ID: 6mhv
TitleStructure of human TRPV3 in the presence of 2-APB in C4 symmetry
ComponentsTransient receptor potential cation channel subfamily V member 3
KeywordsTRANSPORT PROTEIN / membrane protein / ion channel / TRP channel / calcium transport
Function / homology
Function and homology information


negative regulation of hair cycle / TRP channels / response to temperature stimulus / positive regulation of calcium ion import / calcium ion transmembrane transport / calcium channel activity / receptor complex / identical protein binding / plasma membrane
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)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsZubcevic, L. / Herzik, M.A. / Wu, M. / Borschel, W.F. / Hirschi, M. / Song, A. / Lander, G.C. / Lee, S.Y.
Funding support United States, 3items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)R35NS097241 United States
National Institutes of Health/National Institute of Biomedical Imaging and Bioengineering (NIH/NIBIB)DP2EB020402 United States
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)R21AR072910 United States
CitationJournal: Nat Commun / Year: 2018
Title: Conformational ensemble of the human TRPV3 ion channel.
Authors: Lejla Zubcevic / Mark A Herzik / Mengyu Wu / William F Borschel / Marscha Hirschi / Albert S Song / Gabriel C Lander / Seok-Yong Lee /
Abstract: Transient receptor potential vanilloid channel 3 (TRPV3), a member of the thermosensitive TRP (thermoTRPV) channels, is activated by warm temperatures and serves as a key regulator of normal skin ...Transient receptor potential vanilloid channel 3 (TRPV3), a member of the thermosensitive TRP (thermoTRPV) channels, is activated by warm temperatures and serves as a key regulator of normal skin physiology through the release of pro-inflammatory messengers. Mutations in trpv3 have been identified as the cause of the congenital skin disorder, Olmsted syndrome. Unlike other members of the thermoTRPV channel family, TRPV3 sensitizes upon repeated stimulation, yet a lack of structural information about the channel precludes a molecular-level understanding of TRPV3 sensitization and gating. Here, we present the cryo-electron microscopy structures of apo and sensitized human TRPV3, as well as several structures of TRPV3 in the presence of the common thermoTRPV agonist 2-aminoethoxydiphenyl borate (2-APB). Our results show α-to-π-helix transitions in the S6 during sensitization, and suggest a critical role for the S4-S5 linker π-helix during ligand-dependent gating.
History
DepositionSep 18, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 3, 2018Provider: repository / Type: Initial release
Revision 1.1Nov 28, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.2Dec 11, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.3Mar 13, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
B: Transient receptor potential cation channel subfamily V member 3
C: Transient receptor potential cation channel subfamily V member 3
A: Transient receptor potential cation channel subfamily V member 3
D: Transient receptor potential cation channel subfamily V member 3


Theoretical massNumber of molelcules
Total (without water)379,4414
Polymers379,4414
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area21290 Å2
ΔGint-209 kcal/mol
Surface area106890 Å2

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Components

#1: Protein
Transient receptor potential cation channel subfamily V member 3 / TrpV3 / Vanilloid receptor-like 3 / VRL-3


Mass: 94860.219 Da / Num. of mol.: 4 / Mutation: T96A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TRPV3 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q8NET8

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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 TRPV3 in the presence of 2-APB / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 8 / Details: Buffer contained 1 mM 2-APB
SpecimenConc.: 0.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: Gatan Solarus / Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil, UltrAuFoil, R1.2/1.3
VitrificationInstrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Humidity: 90 % / Chamber temperature: 277 K
Details: Specimen was manually blotted for 4 seconds immediately prior to plunge-freezing in liquid ethane cooled by liquid nitrogen.

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Details: Alignment performed as described in Herzik, Wu, Lander, Nat Methods 2017 (PMID: 28991891)
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 36000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 1200 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 93 K / Temperature (min): 93 K
Image recordingAverage exposure time: 15 sec. / Electron dose: 60 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 1908
Image scansSampling size: 5 µm / Width: 3710 / Height: 3838 / Movie frames/image: 60 / Used frames/image: 1-60

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Processing

SoftwareName: PHENIX / Version: 1.12_2829: / Classification: refinement
EM software
IDNameVersionCategory
2Leginon3.2image acquisition
4CTFFIND4CTF correction
5RELION2.1CTF correction
11RELION2.1initial Euler assignment
12RELION2.1final Euler assignment
14RELION2.13D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 897643
SymmetryPoint symmetry: C4 (4 fold cyclic)
3D reconstructionResolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 141832 / Algorithm: BACK PROJECTION / Symmetry type: POINT
Atomic model buildingB value: 145 / Space: REAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00536087
ELECTRON MICROSCOPYf_angle_d0.97364904
ELECTRON MICROSCOPYf_dihedral_angle_d9.74814655
ELECTRON MICROSCOPYf_chiral_restr0.1253068
ELECTRON MICROSCOPYf_plane_restr0.0035553

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