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- PDB-6dvw: Cryo-EM structure of mouse TRPV3 -

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Basic information

Entry
Database: PDB / ID: 6dvw
TitleCryo-EM structure of mouse TRPV3
ComponentsTransient receptor potential cation channel subfamily V member 3
KeywordsMEMBRANE PROTEIN / TRPV3 / TRP channels / Calcium channels
Function / homology
Function and homology information


negative regulation of hair cycle / TRP channels / response to temperature stimulus / positive regulation of calcium ion import / monoatomic cation channel activity / calcium channel activity / monoatomic ion channel activity / receptor complex / membrane / identical protein binding
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 speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.3 Å
AuthorsSingh, A.K. / McGoldrick, L.L. / Sobolevsky, A.I.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)1R01CA206573-01A1 United States
CitationJournal: Nat Struct Mol Biol / Year: 2018
Title: Structure and gating mechanism of the transient receptor potential channel TRPV3.
Authors: Appu K Singh / Luke L McGoldrick / Alexander I Sobolevsky /
Abstract: Transient receptor potential vanilloid subfamily member 3 (TRPV3) channel plays a crucial role in skin physiology and pathophysiology. Mutations in TRPV3 are associated with various skin diseases, ...Transient receptor potential vanilloid subfamily member 3 (TRPV3) channel plays a crucial role in skin physiology and pathophysiology. Mutations in TRPV3 are associated with various skin diseases, including Olmsted syndrome, atopic dermatitis, and rosacea. Here we present the cryo-electron microscopy structures of full-length mouse TRPV3 in the closed apo and agonist-bound open states. The agonist binds three allosteric sites distal to the pore. Channel opening is accompanied by conformational changes in both the outer pore and the intracellular gate. The gate is formed by the pore-lining S6 helices that undergo local α-to-π helical transitions, elongate, rotate, and splay apart in the open state. In the closed state, the shorter S6 segments are entirely α-helical, expose their nonpolar surfaces to the pore, and hydrophobically seal the ion permeation pathway. These findings further illuminate TRP channel activation and can aid in the design of drugs for the treatment of inflammatory skin conditions, itch, and pain.
History
DepositionJun 25, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 5, 2018Provider: repository / Type: Initial release
Revision 1.1Sep 12, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.journal_abbrev / _citation.pdbx_database_id_PubMed ..._citation.journal_abbrev / _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.name
Revision 1.2Sep 19, 2018Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Feb 27, 2019Group: Data collection / Database references / Category: citation_author / Item: _citation_author.identifier_ORCID
Revision 1.4Dec 18, 2019Group: Author supporting evidence / Other / Category: atom_sites / pdbx_audit_support
Item: _atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] ..._atom_sites.fract_transf_matrix[1][1] / _atom_sites.fract_transf_matrix[2][2] / _atom_sites.fract_transf_matrix[3][3] / _pdbx_audit_support.funding_organization
Revision 1.5Mar 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
A: Transient receptor potential cation channel subfamily V member 3
B: Transient receptor potential cation channel subfamily V member 3
C: 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)362,8304
Polymers362,8304
Non-polymers00
Water0
1


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

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Components

#1: Protein
Transient receptor potential cation channel subfamily V member 3 / TrpV3


Mass: 90707.516 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Trpv3 / Production host: Homo sapiens (human) / References: UniProt: Q8K424

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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: TRPV3 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
1150 mMsodium chlorideNaClSodium chloride1
220 mMTRISTRIS1
30.08 mMDigitoninDigitonin1
41
SpecimenConc.: 3.6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD
VitrificationCryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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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: SPOT SCAN
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 57 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.12_2829: / Classification: refinement
EM software
IDNameCategory
1RELIONparticle selection
2MotionCorr2particle selection
3Leginonimage acquisition
14RELION3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C4 (4 fold cyclic)
3D reconstructionResolution: 4.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 91694 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00821460
ELECTRON MICROSCOPYf_angle_d1.15829032
ELECTRON MICROSCOPYf_dihedral_angle_d10.66512856
ELECTRON MICROSCOPYf_chiral_restr0.0613308
ELECTRON MICROSCOPYf_plane_restr0.0083624

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