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基本情報
登録情報 | データベース: PDB / ID: 8wu1 | |||||||||||||||||||||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of CB1-beta-arrestin1 complex | |||||||||||||||||||||||||||||||||||||||||||||
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![]() | MEMBRANE PROTEIN / cannabinoid receptor / arrestin / biased signal / class A GPCR | |||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() TGFBR3 regulates TGF-beta signaling / renal water retention / Defective AVP does not bind AVPR2 and causes neurohypophyseal diabetes insipidus (NDI) / MAP2K and MAPK activation / Activation of SMO / Vasopressin-like receptors / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / cannabinoid signaling pathway / Golgi Associated Vesicle Biogenesis ...TGFBR3 regulates TGF-beta signaling / renal water retention / Defective AVP does not bind AVPR2 and causes neurohypophyseal diabetes insipidus (NDI) / MAP2K and MAPK activation / Activation of SMO / Vasopressin-like receptors / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / cannabinoid signaling pathway / Golgi Associated Vesicle Biogenesis / Lysosome Vesicle Biogenesis / retrograde trans-synaptic signaling by endocannabinoid / cannabinoid receptor activity / AP-2 adaptor complex binding / Ub-specific processing proteases / clathrin coat of coated pit / clathrin heavy chain binding / Cargo recognition for clathrin-mediated endocytosis / hemostasis / telencephalon development / desensitization of G protein-coupled receptor signaling pathway / regulation of presynaptic cytosolic calcium ion concentration / Clathrin-mediated endocytosis / clathrin-dependent endocytosis / acetylcholine receptor binding / G protein-coupled receptor internalization / Class A/1 (Rhodopsin-like receptors) / inositol hexakisphosphate binding / axonal fasciculation / regulation of metabolic process / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (s) signalling events / clathrin binding / small molecule binding / positive regulation of vasoconstriction / pseudopodium / positive regulation of systemic arterial blood pressure / phosphatidylinositol-3,4,5-trisphosphate binding / positive regulation of intracellular signal transduction / positive regulation of receptor internalization / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / negative regulation of Notch signaling pathway / endocytic vesicle / activation of adenylate cyclase activity / cellular response to hormone stimulus / response to cytokine / clathrin-coated endocytic vesicle membrane / G protein-coupled receptor activity / G protein-coupled receptor binding / GABA-ergic synapse / receptor internalization / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / positive regulation of protein phosphorylation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Cargo recognition for clathrin-mediated endocytosis / Vasopressin regulates renal water homeostasis via Aquaporins / Clathrin-mediated endocytosis / glucose homeostasis / protein transport / actin cytoskeleton / growth cone / presynaptic membrane / ubiquitin-dependent protein catabolic process / cytoplasmic vesicle / G alpha (i) signalling events / G alpha (s) signalling events / molecular adaptor activity / mitochondrial outer membrane / positive regulation of ERK1 and ERK2 cascade / endosome / G protein-coupled receptor signaling pathway / membrane raft / negative regulation of cell population proliferation / positive regulation of cell population proliferation / positive regulation of gene expression / perinuclear region of cytoplasm / glutamatergic synapse / endoplasmic reticulum / Golgi apparatus / signal transduction / identical protein binding / nucleus / membrane / plasma membrane / cytosol / 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: 3.2 Å | |||||||||||||||||||||||||||||||||||||||||||||
![]() | Liao, Y. / Zhang, H. / Shen, Q. / Cai, C. | |||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Snapshot of the cannabinoid receptor 1-arrestin complex unravels the biased signaling mechanism. 著者: Yu-Ying Liao / Huibing Zhang / Qingya Shen / Chenxi Cai / Yu Ding / Dan-Dan Shen / Jia Guo / Jiao Qin / Yingjun Dong / Yan Zhang / Xiao-Ming Li / ![]() 要旨: Cannabis activates the cannabinoid receptor 1 (CB1), which elicits analgesic and emotion regulation benefits, along with adverse effects, via G and β-arrestin signaling pathways. However, the lack ...Cannabis activates the cannabinoid receptor 1 (CB1), which elicits analgesic and emotion regulation benefits, along with adverse effects, via G and β-arrestin signaling pathways. However, the lack of understanding of the mechanism of β-arrestin-1 (βarr1) coupling and signaling bias has hindered drug development targeting CB1. Here, we present the high-resolution cryo-electron microscopy structure of CB1-βarr1 complex bound to the synthetic cannabinoid MDMB-Fubinaca (FUB), revealing notable differences in the transducer pocket and ligand-binding site compared with the G protein complex. βarr1 occupies a wider transducer pocket promoting substantial outward movement of the TM6 and distinctive twin toggle switch rearrangements, whereas FUB adopts a different pose, inserting more deeply than the G-coupled state, suggesting the allosteric correlation between the orthosteric binding pocket and the partner protein site. Taken together, our findings unravel the molecular mechanism of signaling bias toward CB1, facilitating the development of CB1 agonists. | |||||||||||||||||||||||||||||||||||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 186.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 137.9 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 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.2 MB | 表示 | |
XML形式データ | ![]() | 37.6 KB | 表示 | |
CIF形式データ | ![]() | 56.6 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 37849MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 44135.273 Da / 分子数: 1 / 変異: R169E, I386A, V387A, F388A / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: P17870 |
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#2: 抗体 | 分子量: 25650.502 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#3: 抗体 | 分子量: 23435.064 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: 50310.129 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: P21554, UniProt: P30518 |
#5: 化合物 | ChemComp-KCA / |
研究の焦点であるリガンドがあるか | N |
Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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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 |
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試料調製
構成要素 | 名称: Cryo-EM structure of human cannabinoid receptor 1 with effector protein タイプ: COMPLEX 詳細: MDMB-Fubinaca, cannabinoid receptor 1, arrestin2, Fab30 Entity ID: #1-#4 / 由来: RECOMBINANT | ||||||||||||
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由来(組換発現) |
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緩衝液 | pH: 7.5 | ||||||||||||
試料 | 濃度: 5 mg/ml / 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 |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN 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): 5000 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 52 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 110196 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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