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Yorodumi- PDB-8fcb: Cryo-EM structure of the human TRPV4 - RhoA in complex with GSK10... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8fcb | ||||||
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| Title | Cryo-EM structure of the human TRPV4 - RhoA in complex with GSK1016790A | ||||||
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Keywords | MEMBRANE PROTEIN / TRPV4 / RhoA / GSK1016790A | ||||||
| Function / homology | Function and homology informationstretch-activated, monoatomic cation-selective, calcium channel activity / blood vessel endothelial cell delamination / osmosensor activity / calcium ion import into cytosol / cartilage development involved in endochondral bone morphogenesis / positive regulation of microtubule depolymerization / positive regulation of macrophage inflammatory protein 1 alpha production / positive regulation of striated muscle contraction / positive regulation of chemokine (C-C motif) ligand 5 production / positive regulation of chemokine (C-X-C motif) ligand 1 production ...stretch-activated, monoatomic cation-selective, calcium channel activity / blood vessel endothelial cell delamination / osmosensor activity / calcium ion import into cytosol / cartilage development involved in endochondral bone morphogenesis / positive regulation of microtubule depolymerization / positive regulation of macrophage inflammatory protein 1 alpha production / positive regulation of striated muscle contraction / positive regulation of chemokine (C-C motif) ligand 5 production / positive regulation of chemokine (C-X-C motif) ligand 1 production / alpha-beta T cell lineage commitment / aortic valve formation / beta selection / positive regulation of lipase activity / endothelial tube lumen extension / skeletal muscle satellite cell migration / bone trabecula morphogenesis / SLIT2:ROBO1 increases RHOA activity / RHO GTPases Activate Rhotekin and Rhophilins / Roundabout signaling pathway / cellular hypotonic salinity response / Axonal growth inhibition (RHOA activation) / Axonal growth stimulation / cleavage furrow formation / cellular hypotonic response / negative regulation of cell size / cortical microtubule organization / multicellular organismal-level water homeostasis / regulation of osteoblast proliferation / regulation of modification of postsynaptic actin cytoskeleton / diet induced thermogenesis / mitotic cleavage furrow formation / apical junction assembly / negative regulation of cell migration involved in sprouting angiogenesis / positive regulation of alpha-beta T cell differentiation / cell junction assembly / calcium ion import / establishment of epithelial cell apical/basal polarity / cellular response to chemokine / positive regulation of vascular permeability / negative regulation of oxidative phosphorylation / regulation of modification of postsynaptic structure / RHO GTPases Activate ROCKs / positive regulation of monocyte chemotactic protein-1 production / negative regulation of brown fat cell differentiation / RHO GTPases activate CIT / cell volume homeostasis / odontogenesis / PCP/CE pathway / cell-cell junction assembly / Sema4D induced cell migration and growth-cone collapse / RHO GTPases activate KTN1 / osmosensory signaling pathway / apolipoprotein A-I-mediated signaling pathway / cellular response to osmotic stress / wound healing, spreading of cells / Sema4D mediated inhibition of cell attachment and migration / positive regulation of leukocyte adhesion to vascular endothelial cell / Wnt signaling pathway, planar cell polarity pathway / PI3K/AKT activation / ossification involved in bone maturation / regulation of focal adhesion assembly / negative chemotaxis / regulation of aerobic respiration / EPHA-mediated growth cone collapse / cortical actin cytoskeleton / apical junction complex / stress fiber assembly / myosin binding / positive regulation of cytokinesis / RHOC GTPase cycle / cellular response to cytokine stimulus / positive regulation of macrophage chemotaxis / TRP channels / ERBB2 Regulates Cell Motility / positive regulation of protein serine/threonine kinase activity / cleavage furrow / microtubule polymerization / semaphorin-plexin signaling pathway / negative regulation of cell-substrate adhesion / calcium ion import across plasma membrane / ficolin-1-rich granule membrane / mitotic spindle assembly / RHOA GTPase cycle / endothelial cell migration / response to mechanical stimulus / positive regulation of T cell migration / alpha-tubulin binding / Rho protein signal transduction / beta-tubulin binding / positive regulation of stress fiber assembly / RHO GTPases activate PKNs / GPVI-mediated activation cascade / cytoplasmic microtubule / PTK6 Regulates RHO GTPases, RAS GTPase and MAP kinases / monoatomic cation channel activity / negative regulation of reactive oxygen species biosynthetic process / substrate adhesion-dependent cell spreading / cytoplasmic microtubule organization / positive regulation of neuron differentiation Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.52 Å | ||||||
Authors | Kwon, D.H. / Lee, S.-Y. / Zhang, F. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2023Title: TRPV4-Rho GTPase complex structures reveal mechanisms of gating and disease. Authors: Do Hoon Kwon / Feng Zhang / Brett A McCray / Shasha Feng / Meha Kumar / Jeremy M Sullivan / Wonpil Im / Charlotte J Sumner / Seok-Yong Lee / ![]() Abstract: Crosstalk between ion channels and small GTPases is critical during homeostasis and disease, but little is known about the structural underpinnings of these interactions. TRPV4 is a polymodal, ...Crosstalk between ion channels and small GTPases is critical during homeostasis and disease, but little is known about the structural underpinnings of these interactions. TRPV4 is a polymodal, calcium-permeable cation channel that has emerged as a potential therapeutic target in multiple conditions. Gain-of-function mutations also cause hereditary neuromuscular disease. Here, we present cryo-EM structures of human TRPV4 in complex with RhoA in the ligand-free, antagonist-bound closed, and agonist-bound open states. These structures reveal the mechanism of ligand-dependent TRPV4 gating. Channel activation is associated with rigid-body rotation of the intracellular ankyrin repeat domain, but state-dependent interaction with membrane-anchored RhoA constrains this movement. Notably, many residues at the TRPV4-RhoA interface are mutated in disease and perturbing this interface by introducing mutations into either TRPV4 or RhoA increases TRPV4 channel activity. Together, these results suggest that RhoA serves as an auxiliary subunit for TRPV4, regulating TRPV4-mediated calcium homeostasis and disruption of TRPV4-RhoA interactions can lead to TRPV4-related neuromuscular disease. These insights will help facilitate TRPV4 therapeutics development. #1: Journal: bioRxiv / Year: 2023 Title: Structural insights into TRPV4-Rho GTPase signaling complex function and disease. Authors: Do Hoon Kwon / Feng Zhang / Brett A McCray / Meha Kumar / Jeremy M Sullivan / Charlotte J Sumner / Seok-Yong Lee Abstract: Crosstalk between ion channels and small GTPases is critical during homeostasis and disease , but little is known about the structural underpinnings of these interactions. TRPV4 is a polymodal, ...Crosstalk between ion channels and small GTPases is critical during homeostasis and disease , but little is known about the structural underpinnings of these interactions. TRPV4 is a polymodal, calcium-permeable cation channel that has emerged as a potential therapeutic target in multiple conditions . Gain-of-function mutations also cause hereditary neuromuscular disease . Here, we present cryo-EM structures of human TRPV4 in complex with RhoA in the apo, antagonist-bound closed, and agonist-bound open states. These structures reveal the mechanism of ligand-dependent TRPV4 gating. Channel activation is associated with rigid-body rotation of the intracellular ankyrin repeat domain, but state-dependent interaction with membrane-anchored RhoA constrains this movement. Notably, many residues at the TRPV4-RhoA interface are mutated in disease and perturbing this interface by introducing mutations into either TRPV4 or RhoA increases TRPV4 channel activity. Together, these results suggest that the interaction strength between TRPV4 and RhoA tunes TRPV4-mediated calcium homeostasis and actin remodeling, and that disruption of TRPV4-RhoA interactions leads to TRPV4-related neuromuscular disease, findings that will guide TRPV4 therapeutics development. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8fcb.cif.gz | 996 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8fcb.ent.gz | 819 KB | Display | PDB format |
| PDBx/mmJSON format | 8fcb.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/fc/8fcb ftp://data.pdbj.org/pub/pdb/validation_reports/fc/8fcb | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 28976MC ![]() 8fc7C ![]() 8fc8C ![]() 8fc9C ![]() 8fcaC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 98393.930 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: TRPV4, VRL2, VROAC / Production host: Homo sapiens (human) / References: UniProt: Q9HBA0#2: Protein | Mass: 21799.158 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RHOA, ARH12, ARHA, RHO12 / Production host: Homo sapiens (human) / References: UniProt: P61586, small monomeric GTPase#3: Chemical | ChemComp-XQ3 / #4: Chemical | ChemComp-Y01 / #5: Chemical | ChemComp-GSP / Has ligand of interest | Y | |
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-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Human TRPV4 - RhoA complex in GSK1016790A / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 8 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| Image processing |
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| CTF correction |
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| 3D reconstruction |
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| Refinement | Highest resolution: 3.52 Å |
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About Yorodumi



Homo sapiens (human)
United States, 1items
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FIELD EMISSION GUN