登録情報 データベース : EMDB / ID : EMD-66516 ダウンロードとリンクタイトル AR234958 bound Mas1 Receptor Complex マップデータ 詳細 試料複合体 : AR234958 bound Mas1 Receptor Complexタンパク質・ペプチド : Chimeric Gi protein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 : Scfv16タンパク質・ペプチド : Proto-oncogene Masリガンド : 1-(4-fluorophenyl)-4-[[(3~{R},4~{R})-4-(3-fluorophenyl)-1-(2-methoxy-4-nitro-phenyl)sulfonyl-pyrrolidin-3-yl]methyl]piperazine 詳細 キーワード GPCR / Agonist / Orphan Receptor... / PEPTIDE BINDING PROTEIN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
angiotensin receptor activity / angiotensin type II receptor activity / angiotensin-mediated vasodilation involved in regulation of systemic arterial blood pressure / phospholipase C-activating angiotensin-activated signaling pathway / peptide binding / Peptide ligand-binding receptors / G protein-coupled receptor activity / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway ... angiotensin receptor activity / angiotensin type II receptor activity / angiotensin-mediated vasodilation involved in regulation of systemic arterial blood pressure / phospholipase C-activating angiotensin-activated signaling pathway / peptide binding / Peptide ligand-binding receptors / G protein-coupled receptor activity / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G beta:gamma signalling through BTK / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Glucagon-type ligand receptors / Sensory perception of sweet, bitter, and umami (glutamate) taste / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G alpha (12/13) signalling events / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste / Thrombin signalling through proteinase activated receptors (PARs) / adenylate cyclase-activating G protein-coupled receptor signaling pathway / signaling receptor complex adaptor activity / retina development in camera-type eye / regulation of inflammatory response / GTPase binding / fibroblast proliferation / Ca2+ pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / positive regulation of canonical NF-kappaB signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 Proto-oncogene Mas / Mas-related G protein-coupled receptor family / 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 / G protein beta WD-40 repeat protein ... Proto-oncogene Mas / Mas-related G protein-coupled receptor family / 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 / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / 7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / 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 類似検索 - ドメイン・相同性 Proto-oncogene Mas / 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 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.07 Å 詳細 データ登録者Zhang YM / Liu H / Xu HE 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Natural Science Foundation of China (NSFC) 中国
引用ジャーナル : EMBO J / 年 : 2026タイトル : Structural insight into ligand binding and activation of the orphan GPCR Mas1.著者 : Yumu Zhang / Qiuying Wang / Heng Liu / Hong Shan / Yimin Gu / Jiaqi Yang / Yuan Gao / Kai Wu / Dehua Yang / H Eric Xu / 要旨 : The Mas1 receptor, an orphan class A G-protein-coupled receptor (GPCR), plays pivotal roles in cardiovascular and anti-inflammatory regulation. Despite its therapeutic relevance, the structural ... The Mas1 receptor, an orphan class A G-protein-coupled receptor (GPCR), plays pivotal roles in cardiovascular and anti-inflammatory regulation. Despite its therapeutic relevance, the structural mechanisms underlying Mas1 ligand binding and activation remain poorly understood. Here, we report cryo-EM structures of Mas1 bound to two chemically distinct agonists-neuropeptide FF (NPFF) and synthetic small-molecule AR234958-captured in complex with inhibitory G proteins. These structures reveal a conserved orthosteric binding pocket accommodating both ligands through shared hydrophobic interactions. Unlike many other class A GPCRs that rely on direct W toggle switch engagement, Mas1 adopts a non-canonical activation strategy driven by a ligand-induced hydrophobic compression plane involving residues Y248, L87, I84, and L266 at the bottom of the ligand binding pocket. This mechanism transmits mechanical tension to promote TM6 displacement and G protein coupling. Functional mutagenesis validates this model, identifying two transmembrane helix 6 (TM6) residues, M244 and F237, as critical molecular switches. Comparative analyses of Mas1-related receptors, MRGPRX1-X4, reveal conserved features and mechanistic divergence within this subfamily. These findings provide a structural framework for understanding Mas1 pharmacology and rational design of selective therapeutics. 履歴 登録 2025年10月9日 - ヘッダ(付随情報) 公開 2026年5月20日 - マップ公開 2026年5月20日 - 更新 2026年6月3日 - 現状 2026年6月3日 処理サイト : PDBj / 状態 : 公開
すべて表示 表示を減らす