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- PDB-6o1n: Cryo-EM structure of TRPV5 (1-660) in nanodisc -

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Basic information

Entry
Database: PDB / ID: 6o1n
TitleCryo-EM structure of TRPV5 (1-660) in nanodisc
ComponentsTransient receptor potential cation channel subfamily V member 5
KeywordsMEMBRANE PROTEIN / ion channel / TRP channel
Function / homology
Function and homology information


regulation of urine volume / calcium ion import across plasma membrane / calcium ion homeostasis / calcium ion transmembrane transport / calcium channel activity / calcium ion transport / protein homotetramerization / calmodulin binding / apical plasma membrane / metal ion binding ...regulation of urine volume / calcium ion import across plasma membrane / calcium ion homeostasis / calcium ion transmembrane transport / calcium channel activity / calcium ion transport / protein homotetramerization / calmodulin binding / apical plasma membrane / metal ion binding / identical protein binding / plasma membrane
Similarity search - Function
Transient receptor potential cation channel subfamily V member 5 / Transient receptor potential cation channel subfamily V member 5/6 / Ankyrin repeat-containing domain / 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 ...Transient receptor potential cation channel subfamily V member 5 / Transient receptor potential cation channel subfamily V member 5/6 / Ankyrin repeat-containing domain / 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 / Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat / Ion transport domain / Ion transport protein / Alpha Horseshoe / Mainly Alpha
Similarity search - Domain/homology
Transient receptor potential cation channel subfamily V member 5
Similarity search - Component
Biological speciesOryctolagus cuniculus (rabbit)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsDang, S. / van Goor, M.K. / Asarnow, D. / Wang, Y. / Julius, D. / Cheng, Y. / van der Wijst, J.
Funding support United States, Netherlands, European Union, France, 8items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM098672 United States
National Institutes of Health/National Center for Research Resources (NIH/NCRR)S10OD020054 United States
National Institutes of Health/National Center for Research Resources (NIH/NCRR)S10OD021741 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)R35NS105038 United States
Netherlands Organisation for Scientific Research (NWO)451001004 Netherlands
European Union (EU)748058European Union
Human Frontier Science Program (HFSP) France
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: Proc Natl Acad Sci U S A / Year: 2019
Title: Structural insight into TRPV5 channel function and modulation.
Authors: Shangyu Dang / Mark K van Goor / Daniel Asarnow / YongQiang Wang / David Julius / Yifan Cheng / Jenny van der Wijst /
Abstract: TRPV5 (transient receptor potential vanilloid 5) is a unique calcium-selective TRP channel essential for calcium homeostasis. Unlike other TRPV channels, TRPV5 and its close homolog, TRPV6, do not ...TRPV5 (transient receptor potential vanilloid 5) is a unique calcium-selective TRP channel essential for calcium homeostasis. Unlike other TRPV channels, TRPV5 and its close homolog, TRPV6, do not exhibit thermosensitivity or ligand-dependent activation but are constitutively open at physiological membrane potentials and modulated by calmodulin (CaM) in a calcium-dependent manner. Here we report high-resolution electron cryomicroscopy structures of truncated and full-length TRPV5 in lipid nanodiscs, as well as of a TRPV5 W583A mutant and TRPV5 in complex with CaM. These structures highlight the mechanism of calcium regulation and reveal a flexible stoichiometry of CaM binding to TRPV5.
History
DepositionFeb 21, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 24, 2019Provider: repository / Type: Initial release
Revision 1.1May 15, 2019Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.journal_abbrev / _citation.journal_volume ..._citation.journal_abbrev / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.2Nov 20, 2019Group: Author supporting evidence / Category: pdbx_audit_support
Item: _pdbx_audit_support.country / _pdbx_audit_support.funding_organization
Revision 1.3Dec 18, 2019Group: Other / Category: atom_sites / cell
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] / _cell.Z_PDB
Revision 1.4Mar 20, 2024Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_3d_fitting_list / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type

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Structure visualization

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Assembly

Deposited unit
A: Transient receptor potential cation channel subfamily V member 5
B: Transient receptor potential cation channel subfamily V member 5
C: Transient receptor potential cation channel subfamily V member 5
D: Transient receptor potential cation channel subfamily V member 5


Theoretical massNumber of molelcules
Total (without water)331,5994
Polymers331,5994
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area25590 Å2
ΔGint-244 kcal/mol
Surface area114480 Å2

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Components

#1: Protein
Transient receptor potential cation channel subfamily V member 5 / TrpV5 / Epithelial calcium channel 1 / ECaC1 / Osm-9-like TRP channel 3 / OTRPC3


Mass: 82899.656 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Oryctolagus cuniculus (rabbit) / Gene: Trpv5, Ecac1 / Production host: Homo sapiens (human) / References: UniProt: Q9XSM3

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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: TRPV5 ion channel / Type: CELL / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Oryctolagus cuniculus (rabbit)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
1150 mMsodium chlorideNaCl1
22 mMProceedings of the National Academy of Sciences of the United States of AmericaTCEP1
350 mM4-(2-hydroxyethyl)-1-piperazineethanesulfonic acidHEPES1
SpecimenConc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293 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: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingAverage exposure time: 12 sec. / Electron dose: 68 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2968
Image scansMovie frames/image: 60

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Processing

EM software
IDNameCategory
2SerialEMimage acquisition
4GctfCTF correction
7UCSF Chimeramodel fitting
9cryoSPARCinitial Euler assignment
10cryoSPARCfinal Euler assignment
11cryoSPARCclassification
12cryoSPARC3D reconstruction
13PHENIXmodel refinement
14Cootmodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 916298 / Details: automated picked
SymmetryPoint symmetry: C4 (4 fold cyclic)
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 157203 / Num. of class averages: 1 / Symmetry type: POINT
Atomic model buildingProtocol: AB INITIO MODEL / Space: REAL
Atomic model buildingPDB-ID: 5IWK

5iwk


Accession code: 5IWK / Source name: PDB / Type: experimental model

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