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基本情報
登録情報 | データベース: PDB / ID: 8yh3 | ||||||
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タイトル | A3R-Gi complex bound to m6A | ||||||
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![]() | SIGNALING PROTEIN / GPCR / adenosine receptor / adenosine / G protein / complex | ||||||
機能・相同性 | ![]() Adenylate cyclase inhibitory pathway / Olfactory Signaling Pathway / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G protein-coupled adenosine receptor activity / Activation of the phototransduction cascade / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor ...Adenylate cyclase inhibitory pathway / Olfactory Signaling Pathway / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G protein-coupled adenosine receptor activity / Activation of the phototransduction cascade / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / G alpha (q) signalling events / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / positive regulation of protein localization to cell cortex / G protein-coupled serotonin receptor binding / cellular response to forskolin / regulation of mitotic spindle organization / viral budding from plasma membrane / bioluminescence / generation of precursor metabolites and energy / G protein-coupled receptor binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / 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 / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / 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) / GTPase binding / Ca2+ pathway / retina development in camera-type eye / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / clathrin-dependent endocytosis of virus by host cell / Extra-nuclear estrogen signaling / cell population proliferation / host cell surface receptor binding / G protein-coupled receptor signaling pathway / cell division / fusion of virus membrane with host plasma membrane / GTPase activity / fusion of virus membrane with host endosome membrane / synapse / viral envelope / centrosome / dendrite / protein-containing complex binding 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: 3.4 Å | ||||||
![]() | Oshima, H.S. / Shihoya, W. / Nureki, O. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into the agonist selectivity of the adenosine A receptor. 著者: Hidetaka S Oshima / Akiko Ogawa / Fumiya K Sano / Hiroaki Akasaka / Tomoyoshi Kawakami / Aika Iwama / Hiroyuki H Okamoto / Chisae Nagiri / Fan-Yan Wei / Wataru Shihoya / Osamu Nureki / ![]() 要旨: Adenosine receptors play pivotal roles in physiological processes. Adenosine A receptor (AR), the most recently identified adenosine receptor, is expressed in various tissues, exhibiting important ...Adenosine receptors play pivotal roles in physiological processes. Adenosine A receptor (AR), the most recently identified adenosine receptor, is expressed in various tissues, exhibiting important roles in neuron, heart, and immune cells, and is often overexpressed in tumors, highlighting the therapeutic potential of AR-selective agents. Recently, we identified RNA-derived N-methyladenosine (mA) as an endogenous agonist for AR, suggesting the relationship between RNA-derived modified adenosine and AR. Despite extensive studies on the other adenosine receptors, the selectivity mechanism of AR, especially for AR-selective agonists such as mA and namodenoson, remained elusive. Here, we identify tRNA-derived N-isopentenyl adenosine (iA) as an AR-selective ligand via screening of modified nucleosides against the adenosine receptors. Like mA, iA is found in the human body and may be an endogenous AR ligand. Our cryo-EM analyses elucidate the AR-G complexes bound to adenosine, 5'-N-ethylcarboxamidoadenosine (NECA), mA, iA, and namodenoson at overall resolutions of 3.27 Å (adenosine), 2.86 Å (NECA), 3.19 Å (mA), 3.28 Å (iA), and 3.20 Å (namodenoson), suggesting the selectivity and activation mechanism of AR. We further conduct structure-guided engineering of mA-insensitive AR, which may aid future research targeting mA and AR, providing a molecular basis for future drug discovery. | ||||||
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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ダウンロード
PDBx/mmCIF形式 | ![]() | 230.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 166.4 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 | ![]() 39280MC ![]() 8yh0C ![]() 8yh2C ![]() 8yh5C ![]() 8yh6C 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: 40586.332 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: GNB1 / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() | ||||||||
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#2: タンパク質 | 分子量: 88315.891 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() ![]() 遺伝子: HA, ADORA3 / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() 参照: UniProt: P03435, UniProt: W5QED6, UniProt: A0A5P9VSM6 | ||||||||
#3: タンパク質 | 分子量: 48846.695 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: GNG2, GNAI1 / 細胞株 (発現宿主): HEK293 / 発現宿主: ![]() #4: 抗体 | | 分子量: 27720.795 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-6MD / | 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 |
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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: A3R-Gi complex bound to m6A / タイプ: COMPLEX / Entity ID: #1, #3, #2, #4 / 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: 8 |
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 |
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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): 1600 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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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: 144012 / 対称性のタイプ: POINT |