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基本情報
登録情報 | データベース: PDB / ID: 9iyb | ||||||||||||||||||||||||||||||||||||
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タイトル | Cryo-EM Structure of the Prostaglandin D2 Receptor 2-PGD2 Coupled to G Protein | ||||||||||||||||||||||||||||||||||||
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![]() | MEMBRANE PROTEIN / GPCR / DP2 / PGD2 | ||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() prostaglandin J receptor activity / prostaglandin D receptor activity / prostaglandin F receptor activity / Prostanoid ligand receptors / negative regulation of male germ cell proliferation / cellular response to prostaglandin D stimulus / positive regulation of G protein-coupled receptor signaling pathway / neuropeptide binding / neuropeptide signaling pathway / adenylate cyclase inhibitor activity ...prostaglandin J receptor activity / prostaglandin D receptor activity / prostaglandin F receptor activity / Prostanoid ligand receptors / negative regulation of male germ cell proliferation / cellular response to prostaglandin D stimulus / positive regulation of G protein-coupled receptor signaling pathway / neuropeptide binding / neuropeptide signaling pathway / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / Regulation of insulin secretion / calcium-mediated signaling / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor activity / G protein-coupled receptor binding / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / centriolar satellite / G-protein beta/gamma-subunit complex binding / 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 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / chemotaxis / 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 / GDP binding / 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 / G protein activity / GTPase binding / Ca2+ pathway / midbody / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cell cortex / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / 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 (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / neuron projection / cell population proliferation / immune response / ciliary basal body / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / GTPase activity / synapse / centrosome / GTP binding / protein-containing complex binding / nucleolus / magnesium ion 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: 2.82 Å | ||||||||||||||||||||||||||||||||||||
![]() | Xu, J. / Xu, Y. / Wu, C. / Xu, H.E. | ||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular basis of lipid and ligand regulation of prostaglandin receptor DP2. 著者: Jiuyin Xu / Youwei Xu / Li Hou / Xinheng He / Yang Li / Jing Zhao / Xue Meng / James Jiqi Wang / Yanli Wu / Heng Zhang / Yunhai Li / Wen Hu / Qingning Yuan / Kai Wu / Xi Cheng / Yi Jiang / Yu ...著者: Jiuyin Xu / Youwei Xu / Li Hou / Xinheng He / Yang Li / Jing Zhao / Xue Meng / James Jiqi Wang / Yanli Wu / Heng Zhang / Yunhai Li / Wen Hu / Qingning Yuan / Kai Wu / Xi Cheng / Yi Jiang / Yu Xia / H Eric Xu / Canrong Wu / ![]() 要旨: Prostaglandin D2 receptor 2 (DP2) is an important anti-inflammatory and antiallergic drug target. While inactive DP2 structures are known, its activation mechanisms and biased signaling remain ...Prostaglandin D2 receptor 2 (DP2) is an important anti-inflammatory and antiallergic drug target. While inactive DP2 structures are known, its activation mechanisms and biased signaling remain unclear. Here, we report cryo-EM structures of an apo DP2-Gi complex, a DP2-Gi complex bound to the endogenous ligand Prostaglandin D (PGD), and a DP2-Gi complex bound to indomethacin, an arrestin-biased ligand, at resolutions of 2.5 Å, 2.8Å, and 2.3 Å, respectively. These structures reveal a distinct binding pose of PGD and indomethacin and provide key insights into receptor activation and transducer coupling. Combining the structural data with functional studies, we uncover the molecular basis for biased signaling of indomethacin toward β-arrestin over G proteins. Notably, a phospholipid binding site was identified at the DP2-G protein interface that modulates DP2-G protein interactions. Together, our functional and structural findings provide insights into DP2 activation, biased signaling, drug interactions, and lipid regulation, enabling rational design of safer antiallergy therapeutics targeting this key immune receptor. | ||||||||||||||||||||||||||||||||||||
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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 | ![]() | 224.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.5 MB | 表示 | |
XML形式データ | ![]() | 42.5 KB | 表示 | |
CIF形式データ | ![]() | 62.1 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 | ![]() 60994MC ![]() 8xxuC ![]() 8xxvC 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
-Guanine nucleotide-binding protein ... , 3種, 3分子 BCD
#2: タンパク質 | 分子量: 40414.047 Da / 分子数: 1 / Mutation: S47N,G203A,E245A,A326S / 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: 37915.496 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: 7861.143 Da / 分子数: 1 / 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 AE
#1: タンパク質 | 分子量: 43319.676 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: 26408.492 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-非ポリマー , 3種, 3分子 


#6: 化合物 | ChemComp-A1D5Q / [( 分子量: 837.069 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C43H81O13P |
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#7: 化合物 | ChemComp-PG2 / |
#8: 水 | ChemComp-HOH / |
-詳細
研究の焦点であるリガンドがあるか | N |
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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: Prostaglandin D2 Receptor 2-PGD2-G protein complex / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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分子量 | 値: 0.16 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.4 |
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: TFS 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): 5000 nm / 最小 デフォーカス(公称値): 1200 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: NONE |
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3次元再構成 | 解像度: 2.82 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 82449 / 対称性のタイプ: POINT |