登録情報 データベース : EMDB / ID : EMD-47951 ダウンロードとリンクタイトル GPCR A family receptor マップデータRaw Map 詳細 試料複合体 : Cryo-EM structure of the GPCR bound to a miniGs heterotrimerタンパク質・ペプチド : Adenosine receptor A2aタンパク質・ペプチド : Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1タンパク質・ペプチド : Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2タンパク質・ペプチド : Guanine nucleotide-binding protein G(s) subunit alpha isoforms shortタンパク質・ペプチド : nanobody Nb35リガンド : ADENOSINE 詳細 キーワード GPCR / Heterotrimer / Receptor / cryo-EM / SIGNALING PROTEIN-IMMUNE SYSTEM complex機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
regulation of norepinephrine secretion / positive regulation of circadian sleep/wake cycle, sleep / positive regulation of acetylcholine secretion, neurotransmission / negative regulation of alpha-beta T cell activation / Adenosine P1 receptors / G protein-coupled adenosine receptor activity / response to purine-containing compound / G protein-coupled adenosine receptor signaling pathway / NGF-independant TRKA activation / sensory perception ... regulation of norepinephrine secretion / positive regulation of circadian sleep/wake cycle, sleep / positive regulation of acetylcholine secretion, neurotransmission / negative regulation of alpha-beta T cell activation / Adenosine P1 receptors / G protein-coupled adenosine receptor activity / response to purine-containing compound / G protein-coupled adenosine receptor signaling pathway / NGF-independant TRKA activation / sensory perception / Surfactant metabolism / positive regulation of urine volume / synaptic transmission, dopaminergic / inhibitory postsynaptic potential / type 5 metabotropic glutamate receptor binding / negative regulation of vascular permeability / positive regulation of glutamate secretion / synaptic transmission, cholinergic / response to caffeine / blood circulation / intermediate filament / eating behavior / alpha-actinin binding / presynaptic active zone / regulation of calcium ion transport / PKA activation in glucagon signalling / membrane depolarization / asymmetric synapse / axolemma / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / phagocytosis / intracellular transport / prepulse inhibition / vascular endothelial cell response to laminar fluid shear stress / cellular defense response / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / presynaptic modulation of chemical synaptic transmission / response to amphetamine / regulation of insulin secretion / cellular response to glucagon stimulus / positive regulation of synaptic transmission, glutamatergic / adenylate cyclase activator activity / neuron projection morphogenesis / regulation of mitochondrial membrane potential / central nervous system development / positive regulation of apoptotic signaling pathway / trans-Golgi network membrane / positive regulation of long-term synaptic potentiation / excitatory postsynaptic potential / positive regulation of synaptic transmission, GABAergic / synaptic transmission, glutamatergic / positive regulation of protein secretion / locomotory behavior / astrocyte activation / apoptotic signaling pathway / negative regulation of inflammatory response to antigenic stimulus / bone development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / negative regulation of inflammatory response / platelet aggregation / Olfactory Signaling Pathway / cognition / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / blood coagulation / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / vasodilation / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell / GPER1 signaling 類似検索 - 分子機能 Adenosine A2A receptor / Adenosine receptor / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit ... Adenosine A2A receptor / Adenosine receptor / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 Adenosine receptor A2a / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short 類似検索 - 構成要素生物種 Homo sapiens (ヒト) / Lama glama (ラマ)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 2.63 Å 詳細 データ登録者Bi M / Wang X / Ye L / Cheng Y 資金援助 米国, 2件 詳細 詳細を隠すOrganization Grant number 国 Howard Hughes Medical Institute (HHMI) 米国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM149659 米国
引用ジャーナル : Nat Commun / 年 : 2025タイトル : Structure and function of a near fully-activated intermediate GPCR-Gαβγ complex.著者 : Maxine Bi / Xudong Wang / Jinan Wang / Jun Xu / Wenkai Sun / Victor Ayo Adediwura / Yinglong Miao / Yifan Cheng / Libin Ye / 要旨 : Unraveling the signaling roles of intermediate complexes is pivotal for G protein-coupled receptor (GPCR) drug development. Despite hundreds of GPCR-Gαβγ structures, these snapshots primarily ... Unraveling the signaling roles of intermediate complexes is pivotal for G protein-coupled receptor (GPCR) drug development. Despite hundreds of GPCR-Gαβγ structures, these snapshots primarily capture the fully activated complex. Consequently, the functions of intermediate GPCR-G protein complexes remain elusive. Guided by a conformational landscape visualized via F quantitative NMR and molecular dynamics (MD) simulations, we determined the structure of an intermediate GPCR-mini-Gαβγ complex at 2.6 Å using cryo-EM, by blocking its transition to the fully activated complex. Furthermore, we present direct evidence that the complex at this intermediate state initiates a rate-limited nucleotide exchange before transitioning to the fully activated complex. In this state, BODIPY-GDP/GTP based nucleotide exchange assays further indicated the α-helical domain of the Gα is partially open, allowing it to grasp a nucleotide at a non-canonical binding site, distinct from the canonical nucleotide-binding site. These advances bridge a significant gap in our understanding of the complexity of GPCR signaling. 履歴 登録 2024年11月18日 - ヘッダ(付随情報) 公開 2025年4月9日 - マップ公開 2025年4月9日 - 更新 2025年5月21日 - 現状 2025年5月21日 処理サイト : RCSB / 状態 : 公開
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