- EMDB-47491: Cryo-EM structure of the human P2X7 receptor in the ATP-bound ope... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-47491
タイトル
Cryo-EM structure of the human P2X7 receptor in the ATP-bound open state
マップデータ
Sharpened map for human P2X7 in the ATP-bound desensitized state
試料
複合体: Membrane protein
タンパク質・ペプチド: P2X purinoceptor 7
リガンド: 2-acetamido-2-deoxy-beta-D-glucopyranose
リガンド: GUANOSINE-5'-DIPHOSPHATE
リガンド: ZINC ION
リガンド: PALMITIC ACID
リガンド: ADENOSINE-5'-TRIPHOSPHATE
リガンド: water
キーワード
Membrane Protein / Ion Channel / Ligand-Gated Ion Channel / P2X Receptor / P2XR / Allosteric Antagonist / Agonist
機能・相同性
機能・相同性情報
positive regulation of bleb assembly / NAD transport / gamma-aminobutyric acid secretion / phagolysosome assembly / phospholipid transfer to membrane / positive regulation of cytoskeleton organization / positive regulation of monoatomic ion transmembrane transport / Platelet homeostasis / purinergic nucleotide receptor signaling pathway / extracellularly ATP-gated monoatomic cation channel activity ...positive regulation of bleb assembly / NAD transport / gamma-aminobutyric acid secretion / phagolysosome assembly / phospholipid transfer to membrane / positive regulation of cytoskeleton organization / positive regulation of monoatomic ion transmembrane transport / Platelet homeostasis / purinergic nucleotide receptor signaling pathway / extracellularly ATP-gated monoatomic cation channel activity / positive regulation of gamma-aminobutyric acid secretion / positive regulation of interleukin-1 alpha production / purinergic nucleotide receptor activity / collagen metabolic process / pore complex assembly / positive regulation of prostaglandin secretion / negative regulation of cell volume / plasma membrane phospholipid scrambling / T cell apoptotic process / mitochondrial depolarization / bleb assembly / Elevation of cytosolic Ca2+ levels / vesicle budding from membrane / positive regulation of T cell apoptotic process / prostaglandin secretion / bleb / response to fluid shear stress / glutamate secretion / cellular response to dsRNA / negative regulation of bone resorption / ceramide biosynthetic process / positive regulation of glutamate secretion / skeletal system morphogenesis / positive regulation of macrophage cytokine production / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / response to zinc ion / sodium channel activity / protein homotrimerization / response to ATP / cellular response to ATP / positive regulation of NLRP3 inflammasome complex assembly / positive regulation of mitochondrial depolarization / T cell homeostasis / membrane protein ectodomain proteolysis / The NLRP3 inflammasome / protein secretion / response to electrical stimulus / positive regulation of calcium ion transport into cytosol / synaptic vesicle exocytosis / membrane depolarization / T cell proliferation / positive regulation of bone mineralization / potassium channel activity / response to mechanical stimulus / Purinergic signaling in leishmaniasis infection / regulation of sodium ion transport / extrinsic apoptotic signaling pathway / negative regulation of MAPK cascade / release of sequestered calcium ion into cytosol / reactive oxygen species metabolic process / sensory perception of pain / homeostasis of number of cells within a tissue / response to ischemia / positive regulation of glycolytic process / positive regulation of protein secretion / positive regulation of interleukin-1 beta production / T cell mediated cytotoxicity / protein catabolic process / apoptotic signaling pathway / neuromuscular junction / mitochondrion organization / calcium-mediated signaling / lipopolysaccharide binding / protein processing / response to calcium ion / positive regulation of interleukin-6 production / positive regulation of T cell mediated cytotoxicity / calcium ion transmembrane transport / cell morphogenesis / cell-cell junction / MAPK cascade / presynapse / response to lipopolysaccharide / positive regulation of MAPK cascade / cell surface receptor signaling pathway / postsynapse / defense response to Gram-positive bacterium / response to xenobiotic stimulus / inflammatory response / signaling receptor binding / external side of plasma membrane / neuronal cell body / positive regulation of gene expression / GTP binding / mitochondrion / ATP binding / membrane / metal ion binding / identical protein binding / plasma membrane 類似検索 - 分子機能
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
R00HL138129
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
DP2GM149551
米国
引用
ジャーナル: Nat Commun / 年: 2025 タイトル: A polycyclic scaffold identified by structure-based drug design effectively inhibits the human P2X7 receptor. 著者: Adam C Oken / Andreea L Turcu / Eva Tzortzini / Kyriakos Georgiou / Jessica Nagel / Franka G Westermann / Marta Barniol-Xicota / Jonas Seidler / Ga-Ram Kim / So-Deok Lee / Annette Nicke / ...著者: Adam C Oken / Andreea L Turcu / Eva Tzortzini / Kyriakos Georgiou / Jessica Nagel / Franka G Westermann / Marta Barniol-Xicota / Jonas Seidler / Ga-Ram Kim / So-Deok Lee / Annette Nicke / Yong-Chul Kim / Christa E Müller / Antonios Kolocouris / Santiago Vázquez / Steven E Mansoor / 要旨: The P2X7 receptor is an ATP-gated ion channel that activates inflammatory pathways involved in diseases such as cancer, atherosclerosis, and neurodegeneration. However, despite the potential benefits ...The P2X7 receptor is an ATP-gated ion channel that activates inflammatory pathways involved in diseases such as cancer, atherosclerosis, and neurodegeneration. However, despite the potential benefits of blocking overactive signaling, no P2X7 receptor antagonists have been approved for clinical use. Understanding species-specific pharmacological effects of existing antagonists has been challenging, in part due to the dearth of molecular information on receptor orthologs. Here, to identify distinct molecular features in the human receptor, we determine high-resolution cryo-EM structures of the full-length wild-type human P2X7 receptor in apo closed and ATP-bound open state conformations and draw comparisons with structures of other orthologs. We also report a cryo-EM structure of the human receptor in complex with an adamantane-based inhibitor, which we leverage, in conjunction with functional data and molecular dynamics simulations, to design a potent and selective antagonist with a unique polycyclic scaffold. Functional and structural analysis reveal how this optimized ligand, termed UB-MBX-46, interacts with the classical allosteric pocket of the human P2X7 receptor with subnanomolar potency and high selectivity, revealing its significant therapeutic potential.