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基本情報
登録情報 | データベース: EMDB / ID: EMD-4390 | |||||||||
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タイトル | Cryo-EM structure of the adenosine A2A receptor bound to a miniGs heterotrimer | |||||||||
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機能・相同性 | ![]() positive regulation of acetylcholine secretion, neurotransmission / positive regulation of circadian sleep/wake cycle, sleep / regulation of norepinephrine secretion / negative regulation of alpha-beta T cell activation / Adenosine P1 receptors / G protein-coupled adenosine receptor activity / G protein-coupled adenosine receptor signaling pathway / response to purine-containing compound / sensory perception / positive regulation of urine volume ...positive regulation of acetylcholine secretion, neurotransmission / positive regulation of circadian sleep/wake cycle, sleep / regulation of norepinephrine secretion / negative regulation of alpha-beta T cell activation / Adenosine P1 receptors / G protein-coupled adenosine receptor activity / G protein-coupled adenosine receptor signaling pathway / response to purine-containing compound / sensory perception / positive regulation of urine volume / NGF-independant TRKA activation / Surfactant metabolism / synaptic transmission, dopaminergic / : / inhibitory postsynaptic potential / negative regulation of vascular permeability / synaptic transmission, cholinergic / type 5 metabotropic glutamate receptor binding / positive regulation of glutamate secretion / blood circulation / response to caffeine / intermediate filament / eating behavior / DNA polymerase processivity factor activity / presynaptic active zone / alpha-actinin binding / membrane depolarization / regulation of calcium ion transport / PKA activation in glucagon signalling / hair follicle placode formation / asymmetric synapse / protein-disulfide reductase activity / mu-type opioid receptor binding / developmental growth / corticotropin-releasing hormone receptor 1 binding / axolemma / : / intracellular transport / D1 dopamine receptor binding / Hedgehog 'off' state / cellular defense response / prepulse inhibition / phagocytosis / beta-2 adrenergic receptor binding / adenylate cyclase-activating adrenergic receptor signaling pathway / response to amphetamine / activation of adenylate cyclase activity / adenylate cyclase activator activity / presynaptic modulation of chemical synaptic transmission / excitatory postsynaptic potential / positive regulation of synaptic transmission, glutamatergic / neuron projection morphogenesis / trans-Golgi network membrane / regulation of mitochondrial membrane potential / cell redox homeostasis / synaptic transmission, glutamatergic / positive regulation of long-term synaptic potentiation / locomotory behavior / central nervous system development / astrocyte activation / positive regulation of synaptic transmission, GABAergic / positive regulation of protein secretion / apoptotic signaling pathway / positive regulation of apoptotic signaling pathway / insulin-like growth factor receptor binding / ionotropic glutamate receptor binding / G-protein beta/gamma-subunit complex binding / bone development / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / adenylate cyclase-activating 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 / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / platelet aggregation / negative regulation of inflammatory response / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.11 Å | |||||||||
![]() | Garcia-Nafria J / Lee Y | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM structure of the adenosine A receptor coupled to an engineered heterotrimeric G protein. 著者: Javier García-Nafría / Yang Lee / Xiaochen Bai / Byron Carpenter / Christopher G Tate / ![]() 要旨: The adenosine A receptor (AR) is a prototypical G protein-coupled receptor (GPCR) that couples to the heterotrimeric G protein G. Here, we determine the structure by electron cryo-microscopy (cryo-EM) ...The adenosine A receptor (AR) is a prototypical G protein-coupled receptor (GPCR) that couples to the heterotrimeric G protein G. Here, we determine the structure by electron cryo-microscopy (cryo-EM) of AR at pH 7.5 bound to the small molecule agonist NECA and coupled to an engineered heterotrimeric G protein, which contains mini-G, the βγ subunits and nanobody Nb35. Most regions of the complex have a resolution of ~3.8 Å or better. Comparison with the 3.4 Å resolution crystal structure shows that the receptor and mini-G are virtually identical and that the density of the side chains and ligand are of comparable quality. However, the cryo-EM density map also indicates regions that are flexible in comparison to the crystal structures, which unexpectedly includes regions in the ligand binding pocket. In addition, an interaction between intracellular loop 1 of the receptor and the β subunit of the G protein was observed. | |||||||||
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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マップデータ | ![]() | 1.8 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 19.8 KB 19.8 KB | 表示 表示 | ![]() |
画像 | ![]() | 136.4 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 220.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 219.5 KB | 表示 | |
XML形式データ | ![]() | 5.3 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 | ![]() 6gdgMC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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類似構造データ | |
電子顕微鏡画像生データ | ![]() Data size: 1.1 TB Data #1: Unaligned multi-frame micrographs [micrographs - multiframe] Data #2: Micelle subtracted particles [picked particles - multiframe - processed] Data #3: Particles before subtraction [picked particles - multiframe - processed]) |
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.07 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
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試料の構成要素
+全体 : Adenosine A2A receptor bound to miniGs heterotrimer
+超分子 #1: Adenosine A2A receptor bound to miniGs heterotrimer
+超分子 #2: Adenosine receptor A2a
+超分子 #3: miniGs heterotrimer
+超分子 #4: nanobody Nb35
+分子 #1: TrxA,Adenosine receptor A2a
+分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+分子 #4: Guanine nucleotide-binding protein G(s) subunit alpha isoforms sh...
+分子 #5: nanobody Nb35
+分子 #6: N-ETHYL-5'-CARBOXAMIDO ADENOSINE
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 1 mg/mL |
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緩衝液 | pH: 7.5 |
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 前処理 - タイプ: GLOW DISCHARGE |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277.15 K / 装置: FEI VITROBOT MARK IV |
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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: FEI FALCON III (4k x 4k) 検出モード: COUNTING / 平均露光時間: 60.0 sec. / 平均電子線量: 30.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 50.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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画像解析
-原子モデル構築 1
精密化 | 空間: RECIPROCAL / プロトコル: FLEXIBLE FIT |
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得られたモデル | ![]() PDB-6gdg: |