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- PDB-8j1d: Cryo-EM structure of apo state mTRPV4 -

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Basic information

Entry
Database: PDB / ID: 8j1d
TitleCryo-EM structure of apo state mTRPV4
ComponentsTransient receptor potential cation channel subfamily V member 4
KeywordsMEMBRANE PROTEIN / mTRPV4 / STRUCTURAL PROTEIN
Function / homology
Function and homology information


stretch-activated, monoatomic cation-selective, calcium channel activity / blood vessel endothelial cell delamination / osmosensor activity / vasopressin secretion / positive regulation of striated muscle contraction / calcium ion import into cytosol / positive regulation of macrophage inflammatory protein 1 alpha production / negative regulation of brown fat cell differentiation / positive regulation of microtubule depolymerization / hyperosmotic salinity response ...stretch-activated, monoatomic cation-selective, calcium channel activity / blood vessel endothelial cell delamination / osmosensor activity / vasopressin secretion / positive regulation of striated muscle contraction / calcium ion import into cytosol / positive regulation of macrophage inflammatory protein 1 alpha production / negative regulation of brown fat cell differentiation / positive regulation of microtubule depolymerization / hyperosmotic salinity response / hypotonic response / cortical microtubule organization / positive regulation of chemokine (C-X-C motif) ligand 1 production / positive regulation of chemokine (C-C motif) ligand 5 production / cartilage development involved in endochondral bone morphogenesis / cellular hypotonic response / regulation of response to osmotic stress / cellular hypotonic salinity response / TRP channels / osmosensory signaling pathway / multicellular organismal-level water homeostasis / positive regulation of vascular permeability / cellular response to osmotic stress / calcium ion import / positive regulation of monocyte chemotactic protein-1 production / cell-cell junction assembly / response to osmotic stress / regulation of aerobic respiration / cortical actin cytoskeleton / positive regulation of macrophage chemotaxis / beta-tubulin binding / diet induced thermogenesis / microtubule polymerization / alpha-tubulin binding / cytoplasmic microtubule / energy homeostasis / monoatomic cation channel activity / SH2 domain binding / protein kinase C binding / filopodium / actin filament organization / calcium ion transmembrane transport / adherens junction / positive regulation of JNK cascade / response to insulin / calcium channel activity / cilium / ruffle membrane / intracellular calcium ion homeostasis / positive regulation of inflammatory response / positive regulation of interleukin-6 production / calcium ion transport / actin filament binding / glucose homeostasis / negative regulation of neuron projection development / lamellipodium / cellular response to heat / actin binding / growth cone / positive regulation of cytosolic calcium ion concentration / actin cytoskeleton organization / microtubule binding / response to hypoxia / positive regulation of ERK1 and ERK2 cascade / calmodulin binding / apical plasma membrane / focal adhesion / lipid binding / positive regulation of gene expression / protein kinase binding / negative regulation of transcription by RNA polymerase II / cell surface / ATP binding / identical protein binding / metal ion binding / plasma membrane
Similarity search - Function
Transient receptor potential cation channel subfamily V member 4 / Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / 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 4
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.59 Å
AuthorsZhen, W.X. / Yang, F.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32122040 China
CitationJournal: Cell Discov / Year: 2023
Title: Structural basis of ligand activation and inhibition in a mammalian TRPV4 ion channel.
Authors: Wenxuan Zhen / Zhijun Zhao / Shenghai Chang / Xiaoying Chen / Yangzhuoqun Wan / Fan Yang /
History
DepositionApr 12, 2023Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Aug 9, 2023Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Transient receptor potential cation channel subfamily V member 4
B: Transient receptor potential cation channel subfamily V member 4
C: Transient receptor potential cation channel subfamily V member 4
D: Transient receptor potential cation channel subfamily V member 4


Theoretical massNumber of molelcules
Total (without water)302,6664
Polymers302,6664
Non-polymers00
Water0
1


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

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Components

#1: Protein
Transient receptor potential cation channel subfamily V member 4 / TrpV4 / Osm-9-like TRP channel 4 / OTRPC4 / Transient receptor potential protein 12 / TRP12 / ...TrpV4 / Osm-9-like TRP channel 4 / OTRPC4 / Transient receptor potential protein 12 / TRP12 / Vanilloid receptor-like channel 2 / Vanilloid receptor-like protein 2 / Vanilloid receptor-related osmotically-activated channel / VR-OAC


Mass: 75666.594 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Trpv4, Trp12, Vrl2, Vroac / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q9EPK8

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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: apo state of mTRPV4 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenConc.: 5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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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 FIELDBright-field microscopy / Nominal defocus max: 1600 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 52 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.20.1_4487: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.59 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 201371 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00320664
ELECTRON MICROSCOPYf_angle_d0.55628028
ELECTRON MICROSCOPYf_dihedral_angle_d4.3672772
ELECTRON MICROSCOPYf_chiral_restr0.0353224
ELECTRON MICROSCOPYf_plane_restr0.0043504

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