+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7t32 | ||||||
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タイトル | CryoEM structure of the adenosine 2A receptor-BRIL/Anti BRIL Fab complex with ZM241385 | ||||||
要素 | Adenosine receptor A2a/Soluble cytochrome b562 Fusion Protein | ||||||
キーワード | MEMBRANE PROTEIN (膜タンパク質) / A2AAR / GPCR (Gタンパク質共役受容体) / ADENOSINE RECEPTOR (アデノシン受容体) | ||||||
機能・相同性 | 機能・相同性情報 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 / 知覚 / 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 / 知覚 / positive regulation of urine volume / NGF-independant TRKA activation / Surfactant metabolism / protein kinase C-activating G protein-coupled receptor signaling pathway / synaptic transmission, dopaminergic / inhibitory postsynaptic potential / negative regulation of vascular permeability / type 5 metabotropic glutamate receptor binding / positive regulation of glutamate secretion / 循環器 / synaptic transmission, cholinergic / response to caffeine / 中間径フィラメント / eating behavior / presynaptic active zone / alpha-actinin binding / 脱分極 / regulation of calcium ion transport / asymmetric synapse / axolemma / response to inorganic substance / cellular defense response / prepulse inhibition / 食作用 / positive regulation of apoptotic signaling pathway / response to amphetamine / presynaptic modulation of chemical synaptic transmission / excitatory postsynaptic potential / positive regulation of synaptic transmission, glutamatergic / neuron projection morphogenesis / locomotory behavior / 電子伝達系 / regulation of mitochondrial membrane potential / central nervous system development / synaptic transmission, glutamatergic / positive regulation of long-term synaptic potentiation / astrocyte activation / positive regulation of synaptic transmission, GABAergic / positive regulation of protein secretion / apoptotic signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / negative regulation of inflammatory response / vasodilation / 凝固・線溶系 / cell-cell signaling / presynaptic membrane / G alpha (s) signalling events / postsynaptic membrane / negative regulation of neuron apoptotic process / electron transfer activity / ペリプラズム / calmodulin binding / response to xenobiotic stimulus / 炎症 / iron ion binding / negative regulation of cell population proliferation / neuronal cell body / apoptotic process / glutamatergic synapse / lipid binding / 樹状突起 / heme binding / protein-containing complex binding / regulation of DNA-templated transcription / enzyme binding / 生体膜 / identical protein binding / 細胞膜 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) Escherichia coli (大腸菌) | ||||||
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: 3.4 Å | ||||||
データ登録者 | Zhang, K.H. / Wu, H. / Hoppe, N. / Manglik, A. / Cheng, Y.F. | ||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Commun / 年: 2022 タイトル: Fusion protein strategies for cryo-EM study of G protein-coupled receptors. 著者: Kaihua Zhang / Hao Wu / Nicholas Hoppe / Aashish Manglik / Yifan Cheng / 要旨: Single particle cryogenic-electron microscopy (cryo-EM) is used extensively to determine structures of activated G protein-coupled receptors (GPCRs) in complex with G proteins or arrestins. However, ...Single particle cryogenic-electron microscopy (cryo-EM) is used extensively to determine structures of activated G protein-coupled receptors (GPCRs) in complex with G proteins or arrestins. However, applying it to GPCRs without signaling proteins remains challenging because most receptors lack structural features in their soluble domains to facilitate image alignment. In GPCR crystallography, inserting a fusion protein between transmembrane helices 5 and 6 is a highly successful strategy for crystallization. Although a similar strategy has the potential to broadly facilitate cryo-EM structure determination of GPCRs alone without signaling protein, the critical determinants that make this approach successful are not yet clear. Here, we address this shortcoming by exploring different fusion protein designs, which lead to structures of antagonist bound A adenosine receptor at 3.4 Å resolution and unliganded Smoothened at 3.7 Å resolution. The fusion strategies explored here are likely applicable to cryo-EM interrogation of other GPCRs and small integral membrane proteins. #1: ジャーナル: Science / 年: 2012 タイトル: Structural Basis for Allosteric Regulation of GPCRs by Sodium Ions 著者: Liu, W. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7t32.cif.gz | 95.9 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7t32.ent.gz | 70.7 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7t32.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/t3/7t32 ftp://data.pdbj.org/pub/pdb/validation_reports/t3/7t32 | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 43415.855 Da / 分子数: 1 / 変異: YES / 由来タイプ: 組換発現 由来: (組換発現) Homo sapiens (ヒト), (組換発現) Escherichia coli (大腸菌) 遺伝子: ADORA2A, ADORA2, cybC / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P29274, UniProt: P0ABE7 |
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#2: 化合物 | ChemComp-ZMA / |
研究の焦点であるリガンドがあるか | 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: CELL / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: A2A adenosine receptor-BRIL/Anti BRIL Fab complex / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
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: OTHER |
-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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: SPOT SCAN |
電子レンズ | モード: BRIGHT FIELDBright-field microscopy / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 67 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 215946 / 対称性のタイプ: POINT |