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- PDB-8t1c: Cryo-EM structure of human TRPV4 ankyrin repeat domain in complex... -

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Basic information

Entry
Database: PDB / ID: 8t1c
TitleCryo-EM structure of human TRPV4 ankyrin repeat domain in complex with GTPase RhoA
Components
  • Transforming protein RhoA
  • Transient receptor potential cation channel subfamily V member 4-Enhanced green fluorescent protein chimera
KeywordsMEMBRANE PROTEIN / transient receptor potential V family member 4 / TRP / channel / TRPV4 / TRP channels / GTPase / transforming protein RhoA / RhoA / ankyrin repeat domain / GDP / guanosine diphosphate
Function / homology
Function and homology information


blood vessel endothelial cell delamination / osmosensor activity / vasopressin secretion / stretch-activated, monoatomic cation-selective, calcium channel activity / 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 ...blood vessel endothelial cell delamination / osmosensor activity / vasopressin secretion / stretch-activated, monoatomic cation-selective, calcium channel activity / 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 / cortical microtubule organization / regulation of response to osmotic stress / 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 / aortic valve formation / alpha-beta T cell lineage commitment / mitotic cleavage furrow formation / bone trabecula morphogenesis / positive regulation of lipase activity / endothelial tube lumen extension / skeletal muscle satellite cell migration / positive regulation of vascular associated smooth muscle contraction / angiotensin-mediated vasoconstriction involved in regulation of systemic arterial blood pressure / SLIT2:ROBO1 increases RHOA activity / RHO GTPases Activate Rhotekin and Rhophilins / Roundabout signaling pathway / cellular hypotonic response / negative regulation of intracellular steroid hormone receptor signaling pathway / Axonal growth inhibition (RHOA activation) / Axonal growth stimulation / cellular hypotonic salinity response / regulation of neural precursor cell proliferation / cleavage furrow formation / regulation of modification of postsynaptic actin cytoskeleton / multicellular organismal-level water homeostasis / regulation of osteoblast proliferation / forebrain radial glial cell differentiation / cell junction assembly / apical junction assembly / regulation of systemic arterial blood pressure by endothelin / cellular response to chemokine / positive regulation of vascular permeability / negative regulation of cell migration involved in sprouting angiogenesis / negative regulation of cell size / beta selection / establishment of epithelial cell apical/basal polarity / regulation of modification of postsynaptic structure / RHO GTPases Activate ROCKs / negative regulation of oxidative phosphorylation / negative regulation of motor neuron apoptotic process / cellular response to osmotic stress / calcium ion import / osmosensory signaling pathway / cell volume homeostasis / RHO GTPases activate CIT / positive regulation of monocyte chemotactic protein-1 production / Sema4D induced cell migration and growth-cone collapse / PCP/CE pathway / RHO GTPases activate KTN1 / apolipoprotein A-I-mediated signaling pathway / positive regulation of podosome assembly / cell-cell junction assembly / negative regulation of cell-substrate adhesion / TRP channels / positive regulation of alpha-beta T cell differentiation / ossification involved in bone maturation / odontogenesis / Wnt signaling pathway, planar cell polarity pathway / Sema4D mediated inhibition of cell attachment and migration / motor neuron apoptotic process / positive regulation of leukocyte adhesion to vascular endothelial cell / PI3K/AKT activation / wound healing, spreading of cells / apical junction complex / regulation of neuron projection development / regulation of focal adhesion assembly / negative chemotaxis / regulation of aerobic respiration / cortical actin cytoskeleton / myosin binding / positive regulation of macrophage chemotaxis / EPHA-mediated growth cone collapse / stress fiber assembly / beta-tubulin binding / RHOC GTPase cycle / diet induced thermogenesis / androgen receptor signaling pathway / positive regulation of cytokinesis / cerebral cortex cell migration / microtubule polymerization / cellular response to cytokine stimulus / cytoplasmic microtubule / ERBB2 Regulates Cell Motility / cleavage furrow / semaphorin-plexin signaling pathway / Rho protein signal transduction / ficolin-1-rich granule membrane / mitotic spindle assembly / alpha-tubulin binding
Similarity search - Function
Transient receptor potential cation channel subfamily V member 4 / Small GTPase Rho / small GTPase Rho family profile. / Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Green fluorescent protein, GFP / Green fluorescent protein-related / Green fluorescent protein / Green fluorescent protein / Ankyrin repeat ...Transient receptor potential cation channel subfamily V member 4 / Small GTPase Rho / small GTPase Rho family profile. / Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Green fluorescent protein, GFP / Green fluorescent protein-related / Green fluorescent protein / Green fluorescent protein / Ankyrin repeat / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / Small GTPase / Ras family / Rab subfamily of small GTPases / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein / Small GTP-binding protein domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
GUANOSINE-5'-DIPHOSPHATE / Enhanced green fluorescent protein / Transforming protein RhoA / Transient receptor potential cation channel subfamily V member 4
Similarity search - Component
Biological speciesHomo sapiens (human)
Human cytomegalovirus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.49 Å
AuthorsNadezhdin, K.D. / Talyzina, I.A. / Neuberger, A. / Sobolevsky, A.I.
Funding support United States, Germany, 6items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIH/NIAMS)R01 AR078814 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)R01 CA206573 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)R01 NS083660 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)R01 NS107253 United States
German Research Foundation (DFG)464295817 Germany
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)R01 HL096647 United States
CitationJournal: Nat Commun / Year: 2023
Title: Structure of human TRPV4 in complex with GTPase RhoA.
Authors: Kirill D Nadezhdin / Irina A Talyzina / Aravind Parthasarathy / Arthur Neuberger / David X Zhang / Alexander I Sobolevsky /
Abstract: Transient receptor potential (TRP) channel TRPV4 is a polymodal cellular sensor that responds to moderate heat, cell swelling, shear stress, and small-molecule ligands. It is involved in ...Transient receptor potential (TRP) channel TRPV4 is a polymodal cellular sensor that responds to moderate heat, cell swelling, shear stress, and small-molecule ligands. It is involved in thermogenesis, regulation of vascular tone, bone homeostasis, renal and pulmonary functions. TRPV4 is implicated in neuromuscular and skeletal disorders, pulmonary edema, and cancers, and represents an important drug target. The cytoskeletal remodeling GTPase RhoA has been shown to suppress TRPV4 activity. Here, we present a structure of the human TRPV4-RhoA complex that shows RhoA interaction with the membrane-facing surface of the TRPV4 ankyrin repeat domains. The contact interface reveals residues that are mutated in neuropathies, providing an insight into the disease pathogenesis. We also identify the binding sites of the TRPV4 agonist 4α-PDD and the inhibitor HC-067047 at the base of the S1-S4 bundle, and show that agonist binding leads to pore opening, while channel inhibition involves a π-to-α transition in the pore-forming helix S6. Our structures elucidate the interaction interface between hTRPV4 and RhoA, as well as residues at this interface that are involved in TRPV4 disease-causing mutations. They shed light on TRPV4 activation and inhibition and provide a template for the design of future therapeutics for treatment of TRPV4-related diseases.
History
DepositionJun 2, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 5, 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-Enhanced green fluorescent protein chimera
E: Transforming protein RhoA
hetero molecules


Theoretical massNumber of molelcules
Total (without water)149,9603
Polymers149,5172
Non-polymers4431
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Transient receptor potential cation channel subfamily V member 4-Enhanced green fluorescent protein chimera / 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 / VRL-2 / Vanilloid receptor-related osmotically-activated channel / VR-OAC


Mass: 127717.938 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human), (gene. exp.) Human cytomegalovirus
Gene: TRPV4, VRL2, VROAC, egfp / Cell line (production host): HEK293S / Production host: Homo sapiens (human) / References: UniProt: Q9HBA0, UniProt: C5MKY7
#2: Protein Transforming protein RhoA / Rho cDNA clone 12 / h12


Mass: 21799.158 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RHOA, ARH12, ARHA, RHO12 / Cell line (production host): HEK293S / Production host: Homo sapiens (human) / References: UniProt: P61586, small monomeric GTPase
#3: Chemical ChemComp-GDP / GUANOSINE-5'-DIPHOSPHATE


Type: RNA linking / Mass: 443.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O11P2 / Comment: GDP, energy-carrying molecule*YM
Has ligand of interestN

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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 TRPV4 ankyrin repeat domain in complex with GTPase RhoA
Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Molecular weightValue: 0.51 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human) / Cell: Human embryonic kidney 293 / Plasmid: pEG BacMam
Buffer solutionpH: 8
Buffer component
IDConc.NameFormulaBuffer-ID
1150 mMsodium chlorideNaCl1
220 mMtris(hydroxymethyl)aminomethane1
31 mMbeta-Mercaptoethanol1
40.01 %glyco-diosgenin1
SpecimenConc.: 3.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: human TRPV4
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 295 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm
Image recordingAverage exposure time: 2.5 sec. / Electron dose: 58 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 5456
Image scansWidth: 5760 / Height: 4092

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Processing

EM softwareName: PHENIX / Version: 1.11.1_2575: / Category: model refinement
CTF correctionType: NONE
Particle selectionNum. of particles selected: 1285028
3D reconstructionResolution: 3.49 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 86562 / Symmetry type: POINT
Atomic model buildingSpace: REAL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0066097
ELECTRON MICROSCOPYf_angle_d1.20311031
ELECTRON MICROSCOPYf_dihedral_angle_d12.832427
ELECTRON MICROSCOPYf_chiral_restr0.156463
ELECTRON MICROSCOPYf_plane_restr0.005926

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