+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-25751 | |||||||||
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タイトル | Cryo-EM structure of S1 state ACh-bound M2R-Go signaling complex with a PAM | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | GPCR / signaling complex / muscarinic receptor / acetylcholine / MEMBRANE PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 Muscarinic acetylcholine receptors / symmetric synapse / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / G protein-coupled acetylcholine receptor activity / cholinergic synapse / regulation of smooth muscle contraction / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / arrestin family protein binding ...Muscarinic acetylcholine receptors / symmetric synapse / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / G protein-coupled acetylcholine receptor activity / cholinergic synapse / regulation of smooth muscle contraction / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / arrestin family protein binding / G protein-coupled serotonin receptor activity / vesicle docking involved in exocytosis / G protein-coupled dopamine receptor signaling pathway / regulation of heart contraction / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / asymmetric synapse / negative regulation of insulin secretion / G protein-coupled serotonin receptor binding / axon terminus / muscle contraction / presynaptic modulation of chemical synaptic transmission / locomotory behavior / clathrin-coated endocytic vesicle membrane / response to virus / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / 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 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / 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 / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / Cargo recognition for clathrin-mediated endocytosis / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / Clathrin-mediated endocytosis / retina development in camera-type eye / presynaptic membrane / nervous system development / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / cell body / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / chemical synaptic transmission / G alpha (q) signalling events / postsynaptic membrane / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / neuronal cell body / glutamatergic synapse / dendrite / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / Mus musculus (ハツカネズミ) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.16 Å | |||||||||
データ登録者 | Xu J / Wang Q / Du Y / Kobilka BK | |||||||||
資金援助 | 1件
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引用 | ジャーナル: Nat Commun / 年: 2023 タイトル: Structural and dynamic insights into supra-physiological activation and allosteric modulation of a muscarinic acetylcholine receptor. 著者: Jun Xu / Qinggong Wang / Harald Hübner / Yunfei Hu / Xiaogang Niu / Haoqing Wang / Shoji Maeda / Asuka Inoue / Yuyong Tao / Peter Gmeiner / Yang Du / Changwen Jin / Brian K Kobilka / 要旨: The M2 muscarinic receptor (M2R) is a prototypical G-protein-coupled receptor (GPCR) that serves as a model system for understanding GPCR regulation by both orthosteric and allosteric ligands. Here, ...The M2 muscarinic receptor (M2R) is a prototypical G-protein-coupled receptor (GPCR) that serves as a model system for understanding GPCR regulation by both orthosteric and allosteric ligands. Here, we investigate the mechanisms governing M2R signaling versatility using cryo-electron microscopy (cryo-EM) and NMR spectroscopy, focusing on the physiological agonist acetylcholine and a supra-physiological agonist iperoxo, as well as a positive allosteric modulator LY2119620. These studies reveal that acetylcholine stabilizes a more heterogeneous M2R-G-protein complex than iperoxo, where two conformers with distinctive G-protein orientations were determined. We find that LY2119620 increases the affinity for both agonists, but differentially modulates agonists efficacy in G-protein and β-arrestin pathways. Structural and spectroscopic analysis suggest that LY211620 stabilizes distinct intracellular conformational ensembles from agonist-bound M2R, which may enhance β-arrestin recruitment while impairing G-protein activation. These results highlight the role of conformational dynamics in the complex signaling behavior of GPCRs, and could facilitate design of better drugs. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_25751.map.gz | 111 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-25751-v30.xml emd-25751.xml | 16.1 KB 16.1 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_25751.png | 108.8 KB | ||
Filedesc metadata | emd-25751.cif.gz | 6.5 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-25751 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-25751 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_25751_validation.pdf.gz | 351.8 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_25751_full_validation.pdf.gz | 351.4 KB | 表示 | |
XML形式データ | emd_25751_validation.xml.gz | 6.5 KB | 表示 | |
CIF形式データ | emd_25751_validation.cif.gz | 7.6 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25751 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-25751 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_25751.map.gz / 形式: CCP4 / 大きさ: 125 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.85 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-試料の構成要素
-全体 : ACh-bound M2R-GoA-scFv16 complex
全体 | 名称: ACh-bound M2R-GoA-scFv16 complex |
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要素 |
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-超分子 #1: ACh-bound M2R-GoA-scFv16 complex
超分子 | 名称: ACh-bound M2R-GoA-scFv16 complex / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#5 |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Muscarinic acetylcholine receptor M2,muscarinic acetylcholine rec...
分子 | 名称: Muscarinic acetylcholine receptor M2,muscarinic acetylcholine receptor M2 chimera タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 39.72991 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: DYKDDDDAST DSSDNSLALT SPYKTFEVVF IVLVAGSLSL VTIIGNILVM VSIKVNRHLQ TVNNYFLFSL ACADLIIGVF SMNLYTLYT VIGYWPLGPV VCDLWLALDY VVSNASVMNL LIISFDRYFC VTKPLTYPVK RTTKMAGMMI AAAWVLSFIL W APAILFWQ ...文字列: DYKDDDDAST DSSDNSLALT SPYKTFEVVF IVLVAGSLSL VTIIGNILVM VSIKVNRHLQ TVNNYFLFSL ACADLIIGVF SMNLYTLYT VIGYWPLGPV VCDLWLALDY VVSNASVMNL LIISFDRYFC VTKPLTYPVK RTTKMAGMMI AAAWVLSFIL W APAILFWQ FIVGVRTVED GECYIQFFSN AAVTFGTAIA AFYLPVIIMT VLYWHISRAS KSRIKKDKKE PVANQDPVSI VA RKIVKMT KQPAKKKPPP SREKKVTRTI LAILLAFIIT WAPYNVMVLI NTFCAPCIPN TVWTIGYWLC YINSTINPAC YAL CNATFK KTFKHLLMCH YKNIGATRPA GLEVLFQ UniProtKB: Muscarinic acetylcholine receptor M2, Muscarinic acetylcholine receptor M2 |
-分子 #2: Guanine nucleotide-binding protein G(o) subunit alpha
分子 | 名称: Guanine nucleotide-binding protein G(o) subunit alpha タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 40.104551 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: MGCTLSAEDK AAVERSKMIE KNLKEDGISA AKDVKLLLLG AGESGKSTIV KQMKIIHEDG FSGEDVKQYK PVVYSNTIQS LAAIVRAMD TLGIEYGDKE RKADAKMVCD VVSRMEDTEP FSAELLSAMM RLWGDSGIQE CFNRSREYQL NDSAKYYLDS L DRIGAADY ...文字列: MGCTLSAEDK AAVERSKMIE KNLKEDGISA AKDVKLLLLG AGESGKSTIV KQMKIIHEDG FSGEDVKQYK PVVYSNTIQS LAAIVRAMD TLGIEYGDKE RKADAKMVCD VVSRMEDTEP FSAELLSAMM RLWGDSGIQE CFNRSREYQL NDSAKYYLDS L DRIGAADY QPTEQDILRT RVKTTGIVET HFTFKNLHFR LFDVGGQRSE RKKWIHCFED VTAIIFCVAL SGYDQVLHED ET TNRMHES LMLFDSICNN KFFIDTSIIL FLNKKDLFGE KIKKSPLTIC FPEYTGPNTY EDAAAYIQAQ FESKNRSPNK EIY CHMTCA TDTNNIQVVF DAVTDIIIAN NLRGCGLY UniProtKB: Guanine nucleotide-binding protein G(o) subunit alpha |
-分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 37.728152 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: GPGSSGSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...文字列: GPGSSGSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-分子 #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 7.861143 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-分子 #5: Antibody fragment
分子 | 名称: Antibody fragment / タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: Mus musculus (ハツカネズミ) |
分子量 | 理論値: 27.340482 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KGSLEVLFQ |
-分子 #6: ACETYLCHOLINE
分子 | 名称: ACETYLCHOLINE / タイプ: ligand / ID: 6 / コピー数: 1 / 式: ACH |
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分子量 | 理論値: 146.207 Da |
Chemical component information | ChemComp-ACH: |
-分子 #7: 3-amino-5-chloro-N-cyclopropyl-4-methyl-6-[2-(4-methylpiperazin-1...
分子 | 名称: 3-amino-5-chloro-N-cyclopropyl-4-methyl-6-[2-(4-methylpiperazin-1-yl)-2-oxoethoxy]thieno[2,3-b]pyridine-2-carboxamide タイプ: ligand / ID: 7 / コピー数: 1 / 式: 2CU |
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分子量 | 理論値: 437.944 Da |
Chemical component information | ChemComp-2CU: |
-分子 #8: water
分子 | 名称: water / タイプ: ligand / ID: 8 / コピー数: 1 / 式: HOH |
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分子量 | 理論値: 18.015 Da |
Chemical component information | ChemComp-HOH: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 2 mg/mL |
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緩衝液 | pH: 7.5 |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 60.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 1.0 µm |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: PDB ENTRY PDBモデル - PDB ID: |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.16 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 92571 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |