+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-20078 | |||||||||
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タイトル | Muscarinic acetylcholine receptor 1-G11 protein complex | |||||||||
マップデータ | Cryo-EM map for M1R complex | |||||||||
試料 |
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機能・相同性 | 機能・相同性情報 regulation of melanocyte differentiation / guanyl nucleotide binding / saliva secretion / regulation of glial cell proliferation / positive regulation of monoatomic ion transport / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / Muscarinic acetylcholine receptors / endothelin receptor signaling pathway / ion channel modulating, G protein-coupled receptor signaling pathway ...regulation of melanocyte differentiation / guanyl nucleotide binding / saliva secretion / regulation of glial cell proliferation / positive regulation of monoatomic ion transport / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / Muscarinic acetylcholine receptors / endothelin receptor signaling pathway / ion channel modulating, G protein-coupled receptor signaling pathway / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / developmental pigmentation / G protein-coupled acetylcholine receptor activity / neuromuscular synaptic transmission / cellular response to pH / cholinergic synapse / PLC beta mediated events / phospholipase C-activating dopamine receptor signaling pathway / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / cranial skeletal system development / entrainment of circadian clock / phototransduction, visible light / positive regulation of intracellular protein transport / phosphatidylinositol phospholipase C activity / G protein-coupled serotonin receptor activity / protein kinase C-activating G protein-coupled receptor signaling pathway / regulation of locomotion / 活動電位 / postsynaptic modulation of chemical synaptic transmission / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / ligand-gated ion channel signaling pathway / photoreceptor outer segment / regulation of postsynaptic membrane potential / enzyme regulator activity / axon terminus / G protein activity / skeletal system development / G protein-coupled receptor binding / postsynaptic density membrane / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / Schaffer collateral - CA1 synapse / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / 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 / ADP signalling through P2Y purinoceptor 12 / positive regulation of insulin secretion / G beta:gamma signalling through BTK / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / 認識 / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / 血圧 / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / G-protein beta-subunit binding / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / G alpha (12/13) signalling events / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / presynaptic membrane / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / nervous system development / heart development / G alpha (i) signalling events / fibroblast proliferation / chemical synaptic transmission / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane 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: 3.3 Å | |||||||||
データ登録者 | Maeda S / Qianhui Q / Skiniotis G / Kobilka B | |||||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Science / 年: 2019 タイトル: Structures of the M1 and M2 muscarinic acetylcholine receptor/G-protein complexes. 著者: Shoji Maeda / Qianhui Qu / Michael J Robertson / Georgios Skiniotis / Brian K Kobilka / 要旨: Muscarinic acetylcholine receptors are G protein-coupled receptors that respond to acetylcholine and play important signaling roles in the nervous system. There are five muscarinic receptor subtypes ...Muscarinic acetylcholine receptors are G protein-coupled receptors that respond to acetylcholine and play important signaling roles in the nervous system. There are five muscarinic receptor subtypes (M1R to M5R), which, despite sharing a high degree of sequence identity in the transmembrane region, couple to different heterotrimeric GTP-binding proteins (G proteins) to transmit signals. M1R, M3R, and M5R couple to the G family, whereas M2R and M4R couple to the G family. Here, we present and compare the cryo-electron microscopy structures of M1R in complex with G and M2R in complex with G The M1R-G complex exhibits distinct features, including an extended transmembrane helix 5 and carboxyl-terminal receptor tail that interacts with G protein. Detailed analysis of these structures provides a framework for understanding the molecular determinants of G-protein coupling selectivity. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_20078.map.gz | 37.9 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-20078-v30.xml emd-20078.xml | 17.3 KB 17.3 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_20078.png | 58 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-20078 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-20078 | 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_20078.map.gz / 形式: CCP4 / 大きさ: 40.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Cryo-EM map for M1R complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
+全体 : muscarinic acetylcholine receptor 1 in complex with heterotrimeri...
+超分子 #1: muscarinic acetylcholine receptor 1 in complex with heterotrimeri...
+超分子 #2: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine n...
+超分子 #3: Muscarinic acetylcholine receptor M1
+分子 #1: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine n...
+分子 #2: Muscarinic acetylcholine receptor M1
+分子 #3: Antibody fragment
+分子 #4: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+分子 #5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+分子 #6: 4-(4,5-dihydro-1,2-oxazol-3-yloxy)-N,N,N-trimethylbut-2-yn-1-aminium
+分子 #7: CHOLESTEROL HEMISUCCINATE
-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
緩衝液 | pH: 7.5 |
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グリッド | 詳細: unspecified |
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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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 FIELDBright-field microscopy |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 平均電子線量: 7.0 e/Å2 |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期 角度割当 | タイプ: ANGULAR RECONSTITUTION |
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最終 角度割当 | タイプ: ANGULAR RECONSTITUTION |
最終 再構成 | 想定した対称性 - 点群: C1 (非対称) / 解像度のタイプ: BY AUTHOR / 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 277988 |