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基本情報
登録情報 | データベース: PDB / ID: 8xjo | |||||||||
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タイトル | U46619 bound Thromboxane A2 receptor-Gq Protein Complex | |||||||||
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![]() | MEMBRANE PROTEIN / cryo-EM / Complex / Signaling Protein | |||||||||
機能・相同性 | ![]() thromboxane A2 receptor activity / Prostanoid ligand receptors / positive regulation of smooth muscle contraction / positive regulation of blood pressure / negative regulation of cell migration involved in sprouting angiogenesis / response to testosterone / positive regulation of vasoconstriction / smooth muscle contraction / positive regulation of blood coagulation / response to nutrient ...thromboxane A2 receptor activity / Prostanoid ligand receptors / positive regulation of smooth muscle contraction / positive regulation of blood pressure / negative regulation of cell migration involved in sprouting angiogenesis / response to testosterone / positive regulation of vasoconstriction / smooth muscle contraction / positive regulation of blood coagulation / response to nutrient / acrosomal vesicle / guanyl-nucleotide exchange factor activity / Olfactory Signaling Pathway / 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 / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / adenylate cyclase-activating G protein-coupled receptor signaling pathway / positive regulation of angiogenesis / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / 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 / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / 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 / Inactivation, recovery and regulation of the phototransduction cascade / 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 / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / positive regulation of cytosolic calcium ion concentration / cellular response to lipopolysaccharide / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / response to ethanol / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / nuclear speck / G protein-coupled receptor signaling pathway / inflammatory response / response to xenobiotic stimulus / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm 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: 3.11 Å | |||||||||
![]() | Zhang, X. / Li, X. / Liu, G. / Gong, W. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis for ligand recognition and activation of the prostanoid receptors. 著者: Xiu Li / Xuan Zhang / Xin Wen / Daolai Zhang / Changxiu Qu / Xinyi Miao / Wenkai Zhang / Ru Zhang / Guibing Liu / Peng Xiao / Jin-Peng Sun / Weimin Gong / ![]() 要旨: Prostaglandin F (PGF) and thromboxane A (TXA) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through ...Prostaglandin F (PGF) and thromboxane A (TXA) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through activating PGF receptor (FP) and TXA receptor (TP). Ligands targeting FP and TP have demonstrated efficacy in treating conditions like glaucoma and cardiovascular diseases in humans, as well as reproductive-related diseases in animals. Here, we present five cryoelectron microscopy structures illustrating FP and TP in complex with G and bound to PGF (endogenous ligand), latanoprost acid (a clinical drug), and two other synthetic agonists. Combined with mutational and functional studies, these structures reveal not only structural features for the specific recognition of endogenous ligands and attainment of receptor selectivity of FP and TP but also the common mechanisms of receptor activation and G protein coupling. The findings may enrich our knowledge of ligand recognition and signal transduction of the prostanoid receptor family and facilitate rational ligand design toward these two receptors. | |||||||||
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 | ![]() | 244.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 186.1 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 | ![]() | 478.4 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 486.6 KB | 表示 | |
XML形式データ | ![]() | 23 KB | 表示 | |
CIF形式データ | ![]() | 35.9 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 | ![]() 38403MC ![]() 8xjkC ![]() 8xjlC ![]() 8xjmC ![]() 8xjnC 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
-タンパク質 , 2種, 2分子 AR
#1: タンパク質 | 分子量: 28305.244 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: ![]() ![]() |
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#5: タンパク質 | 分子量: 61019.816 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), (組換発現) ![]() 遺伝子: TBXA2R 発現宿主: ![]() ![]() 参照: UniProt: P21731 |
-Guanine nucleotide-binding protein ... , 2種, 2分子 BC
#2: タンパク質 | 分子量: 40845.559 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: P62873 |
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#3: タンパク質 | 分子量: 7861.143 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: P59768 |
-抗体 / 非ポリマー , 2種, 2分子 E

#4: 抗体 | 分子量: 27374.430 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: ![]() |
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#6: 化合物 | ChemComp-PUC / ( |
-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: U46619-TP-miniGq-scFv16 complex / 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 | 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): 2200 nm / 最小 デフォーカス(公称値): 1200 nm |
撮影 | 電子線照射量: 55 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / 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: 3.11 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 76401 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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