- EMDB-47490: Cryo-EM structure of the human P2X7 receptor in the apo closed state -
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基本情報
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データベース: EMDB / ID: EMD-47490
タイトル
Cryo-EM structure of the human P2X7 receptor in the apo closed state
マップデータ
Sharpened map for human P2X7 in the apo closed state
試料
複合体: Membrane protein
タンパク質・ペプチド: P2X purinoceptor 7
リガンド: GUANOSINE-5'-DIPHOSPHATE
リガンド: ZINC ION
リガンド: 2-acetamido-2-deoxy-beta-D-glucopyranose
リガンド: CHOLESTEROL HEMISUCCINATE
リガンド: PALMITIC ACID
リガンド: SODIUM ION
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 / Platelet homeostasis / phagolysosome assembly / positive regulation of cytoskeleton organization / phospholipid transfer to membrane / positive regulation of monoatomic ion transmembrane transport / purinergic nucleotide receptor signaling pathway / gamma-aminobutyric acid secretion / extracellularly ATP-gated monoatomic cation channel activity ...positive regulation of bleb assembly / NAD transport / Platelet homeostasis / phagolysosome assembly / positive regulation of cytoskeleton organization / phospholipid transfer to membrane / positive regulation of monoatomic ion transmembrane transport / purinergic nucleotide receptor signaling pathway / gamma-aminobutyric acid secretion / extracellularly ATP-gated monoatomic cation channel activity / pore complex assembly / positive regulation of interleukin-1 alpha production / purinergic nucleotide receptor activity / positive regulation of gamma-aminobutyric acid secretion / bleb / Elevation of cytosolic Ca2+ levels / plasma membrane phospholipid scrambling / negative regulation of cell volume / collagen metabolic process / positive regulation of prostaglandin secretion / T cell apoptotic process / bleb assembly / response to fluid shear stress / mitochondrial depolarization / vesicle budding from membrane / ceramide biosynthetic process / positive regulation of T cell apoptotic process / prostaglandin secretion / cellular response to dsRNA / glutamate secretion / positive regulation of glutamate secretion / negative regulation of bone resorption / positive regulation of macrophage cytokine production / skeletal system morphogenesis / Mechanical load activates signaling by PIEZO1 and integrins in osteocytes / response to zinc ion / response to ATP / positive regulation of mitochondrial depolarization / positive regulation of NLRP3 inflammasome complex assembly / sodium channel activity / cellular response to ATP / protein homotrimerization / T cell homeostasis / monoatomic ion channel activity / membrane protein ectodomain proteolysis / positive regulation of calcium ion transport into cytosol / The NLRP3 inflammasome / protein secretion / response to electrical stimulus / synaptic vesicle exocytosis / membrane depolarization / potassium channel activity / positive regulation of bone mineralization / response to mechanical stimulus / T cell proliferation / Purinergic signaling in leishmaniasis infection / regulation of sodium ion transport / negative regulation of MAPK cascade / extrinsic apoptotic signaling pathway / release of sequestered calcium ion into cytosol / sensory perception of pain / homeostasis of number of cells within a tissue / reactive oxygen species metabolic process / positive regulation of glycolytic process / response to ischemia / positive regulation of interleukin-1 beta production / positive regulation of protein secretion / mitochondrion organization / neuromuscular junction / apoptotic signaling pathway / lipopolysaccharide binding / protein catabolic process / calcium-mediated signaling / T cell mediated cytotoxicity / response to calcium ion / protein processing / calcium ion transmembrane transport / positive regulation of interleukin-6 production / positive regulation of T cell mediated cytotoxicity / cell morphogenesis / cell-cell junction / presynapse / MAPK cascade / response to lipopolysaccharide / cell surface receptor signaling pathway / postsynapse / positive regulation of MAPK cascade / 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 / mitochondrion / ATP binding / identical protein binding / membrane / plasma membrane / cytoplasm 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.