+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 9ek0 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Human M5 muscarinic acetylcholine receptor complex with mini-Gq and iperoxo | |||||||||
![]() |
| |||||||||
![]() | MEMBRANE PROTEIN / G protein-coupled receptor / acetylcholine binding / seven transmembrane protein | |||||||||
機能・相同性 | ![]() regulation of phosphatidylinositol dephosphorylation / gastric acid secretion / Muscarinic acetylcholine receptors / G protein-coupled acetylcholine receptor activity / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / dopamine transport / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors ...regulation of phosphatidylinositol dephosphorylation / gastric acid secretion / Muscarinic acetylcholine receptors / G protein-coupled acetylcholine receptor activity / adenylate cyclase-inhibiting G protein-coupled acetylcholine receptor signaling pathway / dopamine transport / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / photoreceptor outer segment membrane / spectrin binding / alkylglycerophosphoethanolamine phosphodiesterase activity / transmission of nerve impulse / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / photoreceptor outer segment / cardiac muscle cell apoptotic process / photoreceptor inner segment / 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 / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Glucagon-type ligand receptors / 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 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / positive regulation of cytosolic calcium ion concentration / cell body / GTPase binding / Ca2+ pathway / fibroblast proliferation / 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 / cellular response to hypoxia / chemical synaptic transmission / postsynaptic membrane / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / GTPase activity / dendrite / synapse / protein-containing complex binding / extracellular exosome / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.79 Å | |||||||||
![]() | Burger, W.A.C. / Mobbs, J.I. / Thal, D.M. | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() タイトル: Cryo-EM reveals an extrahelical allosteric binding site at the M mAChR. 著者: Wessel A C Burger / Jesse I Mobbs / Bhavika Rana / Jinan Wang / Keya Joshi / Patrick R Gentry / Mahmuda Yeasmin / Hariprasad Venugopal / Aaron M Bender / Craig W Lindsley / Yinglong Miao / ...著者: Wessel A C Burger / Jesse I Mobbs / Bhavika Rana / Jinan Wang / Keya Joshi / Patrick R Gentry / Mahmuda Yeasmin / Hariprasad Venugopal / Aaron M Bender / Craig W Lindsley / Yinglong Miao / Arthur Christopoulos / Celine Valant / David M Thal / ![]() ![]() 要旨: The M muscarinic acetylcholine receptor (M mAChR) represents a promising therapeutic target for neurological disorders. However, the high conservation of its orthosteric binding site poses ...The M muscarinic acetylcholine receptor (M mAChR) represents a promising therapeutic target for neurological disorders. However, the high conservation of its orthosteric binding site poses significant challenges for drug development. While selective positive allosteric modulators (PAMs) offer a potential solution, a structural understanding of the M mAChR and its allosteric binding sites remains limited. Here, we present a 2.8 Å cryo-electron microscopy structure of the M mAChR complexed with heterotrimeric G protein and the agonist iperoxo, completing the active-state structural characterization of the mAChR family. To identify the binding site of M-selective PAMs, we implement an integrated approach combining mutagenesis, pharmacological assays, structural biology, and molecular dynamics simulations. Our mutagenesis studies reveal that selective M PAMs bind outside previously characterized M mAChR allosteric sites. Subsequently, we obtain a 2.1 Å structure of M mAChR co-bound with acetylcholine and the selective PAM VU6007678, revealing an allosteric pocket at the extrahelical interface between transmembrane domains 3 and 4 that is confirmed through mutagenesis and simulations. These findings demonstrate the diverse mechanisms of allosteric regulation in mAChRs and highlight the value of integrating pharmacological and structural approaches to identify allosteric binding sites. | |||||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 191.2 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 145.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.3 MB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 39 KB | 表示 | |
CIF形式データ | ![]() | 59.3 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
#1: タンパク質 | 分子量: 39190.051 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P08912 |
---|---|
#2: タンパク質 | 分子量: 38534.062 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#3: タンパク質 | 分子量: 28039.793 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#4: タンパク質 | 分子量: 7563.750 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#5: 化合物 | ChemComp-IXO / |
研究の焦点であるリガンドがあるか | Y |
Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-
試料調製
構成要素 | 名称: Human M5-miniGq-Gb1g2 complex / タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT |
---|---|
分子量 | 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
-
電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 60 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-
解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21rc1_5127 / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.79 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 426714 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 最高解像度: 2.79 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
拘束条件 |
|