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基本情報
登録情報 | データベース: PDB / ID: 7f1o | ||||||
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タイトル | Cryo-EM structure of the GDP-bound dopamine receptor 1 and mini-Gs complex with Nb35 | ||||||
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![]() | MEMBRANE PROTEIN / GPCR / dopamine receptor / mini-Gs | ||||||
機能・相同性 | ![]() dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / dopamine binding / phospholipase C-activating dopamine receptor signaling pathway / heterotrimeric G-protein binding / modification of postsynaptic structure ...dopamine neurotransmitter receptor activity, coupled via Gs / dopamine neurotransmitter receptor activity / cerebral cortex GABAergic interneuron migration / operant conditioning / Dopamine receptors / regulation of dopamine uptake involved in synaptic transmission / dopamine binding / phospholipase C-activating dopamine receptor signaling pathway / heterotrimeric G-protein binding / modification of postsynaptic structure / peristalsis / regulation of dopamine metabolic process / G protein-coupled receptor complex / grooming behavior / positive regulation of neuron migration / habituation / sensitization / dopamine transport / astrocyte development / dentate gyrus development / conditioned taste aversion / striatum development / positive regulation of potassium ion transport / maternal behavior / arrestin family protein binding / non-motile cilium / long-term synaptic depression / mating behavior / adult walking behavior / G protein-coupled dopamine receptor signaling pathway / ciliary membrane / temperature homeostasis / D-glucose import / transmission of nerve impulse / dopamine metabolic process / behavioral response to cocaine / PKA activation in glucagon signalling / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hair follicle placode formation / G-protein alpha-subunit binding / developmental growth / behavioral fear response / D1 dopamine receptor binding / intracellular transport / prepulse inhibition / vascular endothelial cell response to laminar fluid shear stress / neuronal action potential / renal water homeostasis / Hedgehog 'off' state / synapse assembly / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / presynaptic modulation of chemical synaptic transmission / response to amphetamine / regulation of insulin secretion / cellular response to glucagon stimulus / positive regulation of synaptic transmission, glutamatergic / adenylate cyclase activator activity / positive regulation of release of sequestered calcium ion into cytosol / trans-Golgi network membrane / GABA-ergic synapse / synaptic transmission, glutamatergic / negative regulation of inflammatory response to antigenic stimulus / G protein-coupled receptor activity / visual learning / bone development / memory / G-protein beta/gamma-subunit complex binding / long-term synaptic potentiation / platelet aggregation / Olfactory Signaling Pathway / cognition / 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 / adenylate cyclase-activating G protein-coupled 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 / protein import into nucleus / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / 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 / vasodilation / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma 類似検索 - 分子機能 | ||||||
生物種 | ![]() synthetic construct (人工物) | ||||||
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: 3.13 Å | ||||||
![]() | Xiao, T. / Zheng, S. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into G protein activation by D1 dopamine receptor. 著者: Xiao Teng / Sijia Chen / Qing Wang / Zhao Chen / Xiaoying Wang / Niu Huang / Sanduo Zheng / ![]() 要旨: G protein-coupled receptors (GPCRs) comprise the largest family of membrane receptors and are the most important drug targets. An agonist-bound GPCR engages heterotrimeric G proteins and triggers the ...G protein-coupled receptors (GPCRs) comprise the largest family of membrane receptors and are the most important drug targets. An agonist-bound GPCR engages heterotrimeric G proteins and triggers the exchange of guanosine diphosphate (GDP) with guanosine triphosphate (GTP) to promote G protein activation. A complete understanding of molecular mechanisms of G protein activation has been hindered by a lack of structural information of GPCR-G protein complex in nucleotide-bound states. Here, we report the cryo-EM structures of the D1 dopamine receptor and mini-G complex in the nucleotide-free and nucleotide-bound states. These structures reveal major conformational changes in Gα such as structural rearrangements of the carboxyl- and amino-terminal α helices that account for the release of GDP and the GTP-dependent dissociation of Gα from Gβγ subunits. As validated by biochemical and cellular signaling studies, our structures shed light into the molecular basis of the entire signaling events of GPCR-mediated G protein activation. | ||||||
履歴 |
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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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PDBx/mmCIF形式 | ![]() | 230.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 171.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 31421MC ![]() 7f0tC ![]() 7f1zC ![]() 7f23C ![]() 7f24C C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABD
#2: タンパク質 | 分子量: 28907.684 Da / 分子数: 1 / Mutation: G49D, E50N, A235D, S238D, I358A, V361I / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#3: タンパク質 | 分子量: 39286.891 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: 7845.078 Da / 分子数: 1 / Mutation: C68S / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-タンパク質 / 抗体 , 2種, 2分子 FE
#1: タンパク質 | 分子量: 52409.656 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#5: 抗体 | 分子量: 17352.498 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) synthetic construct (人工物) / 発現宿主: ![]() ![]() |
-非ポリマー , 3種, 3分子 




#6: 化合物 | ChemComp-LDP / |
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#7: 化合物 | ChemComp-MG / |
#8: 化合物 | ChemComp-GDP / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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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 the GDP-bound dopamine receptor 1 and mini-Gs complex with Nb35 タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 濃度: 4 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 281 K |
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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 / 倍率(公称値): 64000 X |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 実像数: 601 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.16_3549: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 973906 | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.13 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 317029 / クラス平均像の数: 2 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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