stretch-activated, monoatomic cation-selective, calcium channel activity / blood vessel endothelial cell delamination / osmosensor activity / vasopressin secretion / calcium ion import into cytosol / regulation of response to osmotic stress / positive regulation of microtubule depolymerization / positive regulation of macrophage inflammatory protein 1 alpha production / positive regulation of striated muscle contraction / hyperosmotic salinity response ...stretch-activated, monoatomic cation-selective, calcium channel activity / blood vessel endothelial cell delamination / osmosensor activity / vasopressin secretion / calcium ion import into cytosol / regulation of response to osmotic stress / positive regulation of microtubule depolymerization / positive regulation of macrophage inflammatory protein 1 alpha production / positive regulation of striated muscle contraction / hyperosmotic salinity response / cartilage development involved in endochondral bone morphogenesis / positive regulation of chemokine (C-X-C motif) ligand 1 production / positive regulation of chemokine (C-C motif) ligand 5 production / alpha-beta T cell lineage commitment / aortic valve formation / 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 / bone trabecula morphogenesis / RHO GTPases Activate Rhotekin and Rhophilins / Roundabout signaling pathway / negative regulation of intracellular steroid hormone receptor signaling pathway / cellular hypotonic salinity response / Axonal growth inhibition (RHOA activation) / Axonal growth stimulation / cleavage furrow formation / cellular hypotonic response / regulation of neural precursor cell proliferation / cortical microtubule organization / regulation of osteoblast proliferation / regulation of modification of postsynaptic actin cytoskeleton / multicellular organismal-level water homeostasis / forebrain radial glial cell differentiation / mitotic cleavage furrow formation / apical junction assembly / negative regulation of cell migration involved in sprouting angiogenesis / positive regulation of vascular permeability / cell junction assembly / beta selection / establishment of epithelial cell apical/basal polarity / cellular response to chemokine / negative regulation of motor neuron apoptotic process / regulation of systemic arterial blood pressure by endothelin / calcium ion import / negative regulation of oxidative phosphorylation / regulation of modification of postsynaptic structure / RHO GTPases Activate ROCKs / RHO GTPases activate CIT / negative regulation of cell size / negative regulation of brown fat cell differentiation / osmosensory signaling pathway / PCP/CE pathway / Sema4D induced cell migration and growth-cone collapse / RHO GTPases activate KTN1 / positive regulation of monocyte chemotactic protein-1 production / cell-cell junction assembly / cell volume homeostasis / positive regulation of alpha-beta T cell differentiation / positive regulation of podosome assembly / cellular response to osmotic stress / apolipoprotein A-I-mediated signaling pathway / Sema4D mediated inhibition of cell attachment and migration / wound healing, spreading of cells / PI3K/AKT activation / motor neuron apoptotic process / Wnt signaling pathway, planar cell polarity pathway / positive regulation of leukocyte adhesion to vascular endothelial cell / odontogenesis / ossification involved in bone maturation / regulation of focal adhesion assembly / androgen receptor signaling pathway / negative chemotaxis / regulation of aerobic respiration / EPHA-mediated growth cone collapse / apical junction complex / cortical actin cytoskeleton / TRP channels / diet induced thermogenesis / stress fiber assembly / myosin binding / positive regulation of cytokinesis / RHOC GTPase cycle / regulation of neuron projection development / positive regulation of macrophage chemotaxis / cellular response to cytokine stimulus / cerebral cortex cell migration / positive regulation of protein serine/threonine kinase activity / ERBB2 Regulates Cell Motility / semaphorin-plexin signaling pathway / cleavage furrow / microtubule polymerization / calcium ion import across plasma membrane / ficolin-1-rich granule membrane / negative regulation of cell-substrate adhesion / RHOA GTPase cycle / mitotic spindle assembly / response to mechanical stimulus 類似検索 - 分子機能
Transient receptor potential cation channel subfamily V member 4 / Small GTPase Rho / Small GTPase Rho domain profile. / Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / Small GTPase / Ras family ...Transient receptor potential cation channel subfamily V member 4 / Small GTPase Rho / Small GTPase Rho domain profile. / Transient receptor potential cation channel subfamily V member 1-4 / Transient receptor potential cation channel subfamily V / Ankyrin repeat / Rho (Ras homology) subfamily of Ras-like small GTPases / Ras subfamily of RAS small GTPases / Small GTPase / Ras family / Ankyrin repeat profile. / Ankyrin repeat region circular profile. / ankyrin repeats / Ankyrin repeat / Rab subfamily of small GTPases / Ankyrin repeat-containing domain superfamily / Ion transport domain / Ion transport protein / Small GTP-binding protein domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Transforming protein RhoA / Transient receptor potential cation channel subfamily V member 4 類似検索 - 構成要素
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)
米国
引用
ジャーナル: Nat Commun / 年: 2023 タイトル: TRPV4-Rho GTPase complex structures reveal mechanisms of gating and disease. 著者: Do Hoon Kwon / Feng Zhang / Brett A McCray / Shasha Feng / Meha Kumar / Jeremy M Sullivan / Wonpil Im / Charlotte J Sumner / Seok-Yong Lee / 要旨: 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.