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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 8xyd | ||||||
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| タイトル | Structure of Platelet-activating factor receptor-G protein complex bound to platelet-activating factor | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / GPCR / PTAFR | ||||||
| 機能・相同性 | 機能・相同性情報platelet activating factor receptor activity / inositol trisphosphate biosynthetic process / lipopolysaccharide immune receptor activity / G protein-coupled purinergic nucleotide receptor activity / Class A/1 (Rhodopsin-like receptors) / Interleukin-10 signaling / tertiary granule membrane / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway ...platelet activating factor receptor activity / inositol trisphosphate biosynthetic process / lipopolysaccharide immune receptor activity / G protein-coupled purinergic nucleotide receptor activity / Class A/1 (Rhodopsin-like receptors) / Interleukin-10 signaling / tertiary granule membrane / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / 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 / secretory granule membrane / Regulation of insulin secretion / lipopolysaccharide binding / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / phospholipid binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / chemotaxis / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Interferon gamma signaling / 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 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / 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 / fibroblast proliferation / midbody / 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 / G alpha (q) 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 / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / immune response / ciliary basal body / G protein-coupled receptor signaling pathway / inflammatory response / lysosomal membrane / cell division / GTPase activity / synapse / centrosome / Neutrophil degranulation / GTP binding / protein-containing complex binding 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() | ||||||
| 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: 2.9 Å | ||||||
データ登録者 | Fan, W. / Xu, Y. / Zhuang, Y. / Xu, H.E. | ||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Cell Rep / 年: 2024タイトル: Molecular basis for the activation of PAF receptor by PAF. 著者: Wenjia Fan / Youwei Xu / Xinheng He / Ping Luo / Jingpeng Zhu / Junrui Li / Ruolan Wang / Qingning Yuan / Kai Wu / Wen Hu / Yuxi Zhao / Shiqi Xu / Xi Cheng / Yue Wang / H Eric Xu / Youwen Zhuang / ![]() 要旨: Platelet-activating factor (PAF) is a potent phospholipid mediator crucial in multiple inflammatory and immune responses through binding and activating the PAF receptor (PAFR). However, drug ...Platelet-activating factor (PAF) is a potent phospholipid mediator crucial in multiple inflammatory and immune responses through binding and activating the PAF receptor (PAFR). However, drug development targeting the PAFR has been limited, partly due to an incomplete understanding of its activation mechanism. Here, we present a 2.9-Å structure of the PAF-bound PAFR-G complex. Structural and mutagenesis analyses unveil a specific binding mode of PAF, with the choline head forming cation-π interactions within PAFR hydrophobic pocket, while the alkyl tail penetrates deeply into an aromatic cleft between TM4 and TM5. Binding of PAF modulates conformational changes in key motifs of PAFR, triggering the outward movement of TM6, TM7, and helix 8 for G protein coupling. Molecular dynamics simulation suggests a membrane-side pathway for PAF entry into PAFR via the TM4-TM5 cavity. By providing molecular insights into PAFR signaling, this work contributes a foundation for developing therapeutic interventions targeting PAF signal axis. | ||||||
| 履歴 |
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 8xyd.cif.gz | 233.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8xyd.ent.gz | 182.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8xyd.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
| 文書・要旨 | 8xyd_validation.pdf.gz | 465.4 KB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 8xyd_full_validation.pdf.gz | 475.3 KB | 表示 | |
| XML形式データ | 8xyd_validation.xml.gz | 23.8 KB | 表示 | |
| CIF形式データ | 8xyd_validation.cif.gz | 35.7 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/xy/8xyd ftp://data.pdbj.org/pub/pdb/validation_reports/xy/8xyd | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 38769MC 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 F&H 検索 |
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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: 37784.301 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNB1 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P62873 |
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| #3: タンパク質 | 分子量: 7563.750 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNG2 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P59768 |
| #4: タンパク質 | 分子量: 40313.863 Da / 分子数: 1 / Mutation: G203A, A326S / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNAI1 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P63096 |
-タンパク質 / 抗体 / 非ポリマー , 3種, 3分子 AE

| #1: タンパク質 | 分子量: 39242.270 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PTAFR, PAFR / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P25105 |
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| #5: 抗体 | 分子量: 26277.299 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() Trichoplusia ni (イラクサキンウワバ) |
| #6: 化合物 | ChemComp-PFS / ( |
-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: PTAFR-PAF G protein complex / タイプ: COMPLEX / Entity ID: #1-#5 / 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: Trichoplusia ni (イラクサキンウワバ) |
| 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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 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: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 346106 / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)

中国, 1件
引用
PDBj































Trichoplusia ni (イラクサキンウワバ)
FIELD EMISSION GUN