+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 9e7r | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | CryoEM structure of PAR2 with GB88 | |||||||||||||||||||||
要素 |
| |||||||||||||||||||||
キーワード | MEMBRANE PROTEIN/IMMUNE SYSTEM / PAR2 / GB88 / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of neutrophil mediated killing of gram-negative bacterium / positive regulation of renin secretion into blood stream / positive regulation of eosinophil degranulation / leukocyte proliferation / positive regulation of glomerular filtration / mature conventional dendritic cell differentiation / regulation of chemokine (C-X-C motif) ligand 2 production / negative regulation of toll-like receptor 3 signaling pathway / positive regulation of toll-like receptor 3 signaling pathway / thrombin-activated receptor activity ...positive regulation of neutrophil mediated killing of gram-negative bacterium / positive regulation of renin secretion into blood stream / positive regulation of eosinophil degranulation / leukocyte proliferation / positive regulation of glomerular filtration / mature conventional dendritic cell differentiation / regulation of chemokine (C-X-C motif) ligand 2 production / negative regulation of toll-like receptor 3 signaling pathway / positive regulation of toll-like receptor 3 signaling pathway / thrombin-activated receptor activity / positive regulation of toll-like receptor 2 signaling pathway / positive regulation of actin filament depolymerization / positive regulation of toll-like receptor 4 signaling pathway / T cell activation involved in immune response / positive regulation of pseudopodium assembly / cell-cell junction maintenance / positive regulation of cytokine production involved in immune response / negative regulation of chemokine production / neutrophil activation / positive regulation of leukocyte chemotaxis / positive regulation of phagocytosis, engulfment / positive regulation of chemotaxis / positive regulation of positive chemotaxis / establishment of endothelial barrier / regulation of canonical NF-kappaB signal transduction / negative regulation of JNK cascade / regulation of JNK cascade / leukocyte migration / regulation of blood coagulation / positive regulation of Rho protein signal transduction / pseudopodium / positive regulation of interleukin-10 production / positive regulation of GTPase activity / G-protein alpha-subunit binding / negative regulation of tumor necrosis factor-mediated signaling pathway / positive regulation of superoxide anion generation / positive regulation of chemokine production / Peptide ligand-binding receptors / positive regulation of interleukin-1 beta production / positive regulation of interleukin-8 production / negative regulation of insulin secretion / positive regulation of interleukin-6 production / positive regulation of JNK cascade / G protein-coupled receptor activity / vasodilation / positive regulation of type II interferon production / blood coagulation / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / 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 / 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 / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G-protein beta-subunit binding / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / positive regulation of cytosolic calcium ion concentration / signaling receptor activity / retina development in camera-type eye / GTPase binding / protease binding / fibroblast proliferation / Ca2+ pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / defense response to virus / G alpha (q) signalling events / Ras protein signal transduction / early endosome 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: 3.18 Å | |||||||||||||||||||||
データ登録者 | Lyu, X. / Lyu, Z. / Malyutin, A.G. / McGrath, A.P. / Kang, Y. | |||||||||||||||||||||
| 資金援助 | 1件
| |||||||||||||||||||||
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. | |||||||||||||||||||||
| 履歴 |
|
-
構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 | 9e7r.cif.gz | 225.1 KB | 表示 | PDBx/mmCIF形式 |
|---|---|---|---|---|
| PDB形式 | pdb9e7r.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9e7r.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/e7/9e7r ftp://data.pdbj.org/pub/pdb/validation_reports/e7/9e7r | HTTPS FTP |
|---|
-関連構造データ
| 関連構造データ | ![]() 47687MC ![]() 9d0aC ![]() 9d4zC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
|---|---|
| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
-
リンク
-
集合体
| 登録構造単位 | ![]()
|
|---|---|
| 1 |
|
-
要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 GAB
| #1: 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: 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: ![]() |
| #4: 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 |
-タンパク質 / 抗体 / 非ポリマー , 3種, 3分子 RE
| #2: タンパク質 | 分子量: 38150.348 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: F2RL1, GPR11, PAR2発現宿主: ![]() 参照: UniProt: P55085 |
|---|---|
| #5: 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) Homo sapiens (ヒト)発現宿主: ![]() |
| #6: 化合物 | ChemComp-A1BF3 / 分子量: 546.700 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C32H42N4O4 / タイプ: SUBJECT OF INVESTIGATION |
-詳細
| 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 |
|---|---|
| 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 |
-
試料調製
| 構成要素 | 名称: Complex of PAR2 with G proteins and GB88 / タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
|---|---|
| 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 |
-
電子顕微鏡撮影
| 顕微鏡 | モデル: TFS GLACIOS |
|---|---|
| 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) |
-
解析
| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.18 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 301011 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 3.18 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 拘束条件 |
|
ムービー
コントローラー
万見について




Homo sapiens (ヒト)
引用





PDBj


























FIELD EMISSION GUN