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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: 9d4z | ||||||||||||||||||||||||
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| タイトル | CryoEM structure of PAR1 with endogenous tethered ligand | ||||||||||||||||||||||||
要素 |
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キーワード | IMMUNE SYSTEM / PAR2 / endogenous ligand. | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報negative regulation of renin secretion into blood stream / dendritic cell homeostasis / trans-synaptic signaling by endocannabinoid, modulating synaptic transmission / platelet dense tubular network / establishment of synaptic specificity at neuromuscular junction / thrombin-activated receptor activity / regulation of interleukin-1 beta production / platelet dense granule organization / connective tissue replacement involved in inflammatory response wound healing / cell-cell junction maintenance ...negative regulation of renin secretion into blood stream / dendritic cell homeostasis / trans-synaptic signaling by endocannabinoid, modulating synaptic transmission / platelet dense tubular network / establishment of synaptic specificity at neuromuscular junction / thrombin-activated receptor activity / regulation of interleukin-1 beta production / platelet dense granule organization / connective tissue replacement involved in inflammatory response wound healing / cell-cell junction maintenance / positive regulation of smooth muscle contraction / positive regulation of calcium ion transport / negative regulation of glomerular filtration / thrombin-activated receptor signaling pathway / regulation of blood coagulation / positive regulation of vasoconstriction / positive regulation of Rho protein signal transduction / positive regulation of collagen biosynthetic process / positive regulation of blood coagulation / anatomical structure morphogenesis / G-protein alpha-subunit binding / Common Pathway of Fibrin Clot Formation / release of sequestered calcium ion into cytosol / homeostasis of number of cells within a tissue / Peptide ligand-binding receptors / positive regulation of release of sequestered calcium ion into cytosol / positive regulation of interleukin-8 production / positive regulation of receptor signaling pathway via JAK-STAT / neuromuscular junction / G protein-coupled receptor activity / regulation of synaptic plasticity / caveola / platelet activation / positive regulation of interleukin-6 production / response to wounding / 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 / 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 / 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 / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / 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 / late endosome / 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 / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / response to lipopolysaccharide / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / negative regulation of neuron apoptotic process / Ras protein signal transduction / postsynaptic membrane / early endosome / Extra-nuclear estrogen signaling / cell population proliferation / positive regulation of ERK1 and ERK2 cascade / positive regulation of canonical NF-kappaB signal transduction / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / positive regulation of MAPK cascade / positive regulation of cell migration / positive regulation of apoptotic process / G protein-coupled receptor signaling pathway / inflammatory response / signaling receptor 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: 2.74 Å | ||||||||||||||||||||||||
データ登録者 | Lyu, X. / Lyu, Z. / McGrath, A.P. / Kang, Y. | ||||||||||||||||||||||||
| 資金援助 | 1件
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引用 | ジャーナル: Nat Commun / 年: 2025タイトル: Structural basis for the activation of proteinase-activated receptors PAR1 and PAR2. 著者: Zongyang Lyu / Xiaoxuan Lyu / Andrey G Malyutin / Guliang Xia / Daniel Carney / Vinicius M Alves / Matthew Falk / Nidhi Arora / Hua Zou / Aaron P McGrath / Yanyong Kang / ![]() 要旨: Members of the proteinase-activated receptor (PAR) subfamily of G protein-coupled receptors (GPCRs) play critical roles in processes like hemostasis, thrombosis, development, wound healing, ...Members of the proteinase-activated receptor (PAR) subfamily of G protein-coupled receptors (GPCRs) play critical roles in processes like hemostasis, thrombosis, development, wound healing, inflammation, and cancer progression. Comprising PAR1-PAR4, these receptors are specifically activated by protease cleavage at their extracellular amino terminus, revealing a 'tethered ligand' that self-activates the receptor. This triggers complex intracellular signaling via G proteins and beta-arrestins, linking external protease signals to cellular functions. To date, direct structural visualization of these ligand-receptor complexes has been limited. Here, we present structural snapshots of activated PAR1 and PAR2 bound to their endogenous tethered ligands, revealing a shallow and constricted orthosteric binding pocket. Comparisons with antagonist-bound structures show minimal conformational changes in the TM6 helix and larger movements of TM7 upon activation. These findings reveal a common activation mechanism for PAR1 and PAR2, highlighting critical residues involved in ligand recognition. Additionally, the structure of PAR2 bound to a pathway selective antagonist, GB88, demonstrates how potent orthosteric engagement can be achieved by a small molecule mimicking the endogenous tethered ligand's interactions. | ||||||||||||||||||||||||
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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 | 9d4z.cif.gz | 224.2 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9d4z.ent.gz | 170.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9d4z.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 | 9d4z_validation.pdf.gz | 924.7 KB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9d4z_full_validation.pdf.gz | 931.9 KB | 表示 | |
| XML形式データ | 9d4z_validation.xml.gz | 41.8 KB | 表示 | |
| CIF形式データ | 9d4z_validation.cif.gz | 62.8 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/d4/9d4z ftp://data.pdbj.org/pub/pdb/validation_reports/d4/9d4z | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 46571MC ![]() 9d0aC ![]() 9e7rC 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
| #1: タンパク質 | 分子量: 37285.734 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: ![]() 参照: UniProt: P62873 |
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| #2: タンパク質 | 分子量: 6504.446 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: ![]() 参照: UniProt: P59768 |
| #3: タンパク質 | 分子量: 43020.996 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: F2R, CF2R, PAR1, TR発現宿主: ![]() 参照: UniProt: P25116 |
| #4: 抗体 | 分子量: 26679.721 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() |
| #5: タンパク質 | 分子量: 41972.578 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)発現宿主: ![]() |
| 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: Complex of PAR1 with G proteins / タイプ: COMPLEX / Entity ID: #3, #1-#2, #4-#5 / 由来: MULTIPLE SOURCES |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil |
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 顕微鏡 | モデル: TFS GLACIOS |
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| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 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): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 電子線照射量: 45 e/Å2 フィルム・検出器のモデル: TFS FALCON 4i (4k x 4k) |
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解析
| EMソフトウェア | 名称: PHENIX / 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: 2.74 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1904551 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 2.74 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 拘束条件 |
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コントローラー
万見について




Homo sapiens (ヒト)

引用





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FIELD EMISSION GUN