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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: 9lwp | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of the unliganded human BRS3-Gq complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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キーワード | MEMBRANE PROTEIN / Unliganded | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報bombesin receptor activity / Oplophorus-luciferin 2-monooxygenase / Oplophorus-luciferin 2-monooxygenase activity / negative regulation of adenylate cyclase-activating adrenergic receptor signaling pathway / adult feeding behavior / neuropeptide receptor activity / negative regulation of calcium ion-dependent exocytosis / G protein-coupled adenosine receptor signaling pathway / negative regulation of adenylate cyclase activity / positive regulation of urine volume ...bombesin receptor activity / Oplophorus-luciferin 2-monooxygenase / Oplophorus-luciferin 2-monooxygenase activity / negative regulation of adenylate cyclase-activating adrenergic receptor signaling pathway / adult feeding behavior / neuropeptide receptor activity / negative regulation of calcium ion-dependent exocytosis / G protein-coupled adenosine receptor signaling pathway / negative regulation of adenylate cyclase activity / positive regulation of urine volume / positive regulation of neural precursor cell proliferation / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / negative regulation of synaptic transmission / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / photoreceptor outer segment membrane / G alpha (q) signalling events / spectrin binding / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / gamma-aminobutyric acid signaling pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / alkylglycerophosphoethanolamine phosphodiesterase activity / regulation of calcium ion transport / negative regulation of apoptotic signaling pathway / PKA activation in glucagon signalling / developmental growth / hair follicle placode formation / photoreceptor outer segment / D1 dopamine receptor binding / intracellular transport / neuronal dense core vesicle / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / positive regulation of vascular associated smooth muscle cell proliferation / positive regulation of superoxide anion generation / adenylate cyclase-activating adrenergic receptor signaling pathway / Adenylate cyclase inhibitory pathway / cardiac muscle cell apoptotic process / photoreceptor inner segment / response to nutrient / regulation of insulin secretion / cellular response to glucagon stimulus / Peptide ligand-binding receptors / bioluminescence / hippocampal mossy fiber to CA3 synapse / adenylate cyclase activator activity / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / Regulation of insulin secretion / G protein-coupled receptor binding / bone development / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / platelet aggregation / regulation of blood pressure / cognition / G-protein beta/gamma-subunit complex binding / glucose metabolic process / adenylate cyclase-activating G protein-coupled receptor signaling pathway 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) Oplophorus gracilirostris (甲殻類)![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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: 2.93 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Li, J. / Li, C. / Zhou, Q. / Han, W. / Fang, M. / Xu, Y. / Mai, Y. / Cui, J. / Xu, H. / Zhang, Y. / Wang, M. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 中国, 17件
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引用 | ジャーナル: Acta Pharm Sin B / 年: 2025タイトル: Divergent activation patterns of BRS3 revealed by two Chinese herb-derived agonists. 著者: Jie Li / Changyao Li / Qingtong Zhou / Wei Han / Mingzhu Fang / Youwei Xu / Yiting Mai / Yao Zhang / Jiahua Cui / H Eric Xu / Yan Zhang / Wanchao Yin / Ming-Wei Wang / ![]() 要旨: Bombesin receptor subtype-3 (BRS3) is an orphan G protein-coupled receptor (GPCR) that plays critical roles in energy homeostasis, glucose metabolism, and insulin secretion. Recent structural studies ...Bombesin receptor subtype-3 (BRS3) is an orphan G protein-coupled receptor (GPCR) that plays critical roles in energy homeostasis, glucose metabolism, and insulin secretion. Recent structural studies have elucidated BRS3 signaling mechanisms using synthetic ligands, including BA1 and MK-5046. However, the molecular basis of BRS3 activation by bioactive natural compounds and their derivatives, particularly those derived from traditional Chinese medicine, remains unclear. Here, we present high-resolution cryogenic electron microscopy (cryo-EM) structures of the human BRS3-G complex in both unliganded and active states bound by two herb-derived compounds (DSO-5a and oridonin), at resolutions of 2.9, 2.8, and 2.9 Å, respectively. These structures display distinct ligand recognition patterns between DSO-5a and oridonin. Although both compounds bind to the orthosteric pocket, they differentially engage the interaction network of BRS3, as demonstrated by mutagenesis studies assessing calcium mobilization and inositol phosphate 1 (IP1) accumulation. These findings enhance our understanding of BRS3 activation and provide valuable insights into the development of small-molecule BRS3 modulators with therapeutic potential. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 9lwp.cif.gz | 193.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9lwp.ent.gz | 144.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9lwp.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/lw/9lwp ftp://data.pdbj.org/pub/pdb/validation_reports/lw/9lwp | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 63455MC ![]() 9k07C 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: 67457.555 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Homo sapiens (ヒト), (組換発現) Oplophorus gracilirostris (甲殻類)遺伝子: BRS3 発現宿主: ![]() 参照: UniProt: P32247, UniProt: Q9GV45, Oplophorus-luciferin 2-monooxygenase |
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| #2: タンパク質 | 分子量: 28084.832 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: GNAI2, GNAI2B, GNAS, GNAS1, GSP発現宿主: ![]() 参照: UniProt: P04899, UniProt: P63092, 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 |
| #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) ![]() 発現宿主: ![]() 参照: UniProt: P54311 |
| #4: タンパク質 | 分子量: 7729.947 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: P63212 |
| Has protein modification | N |
-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: Cryo-EM structure of the ligand-free human BRS3-Gq complex タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT | ||||||||||||||||
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| 由来(天然) |
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| 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: TFS KRIOS |
| 電子銃 | 電子線源: OTHER / 加速電圧: 300 kV / 照射モード: OTHER |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1500 nm |
| 撮影 | 電子線照射量: 80 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.93 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 693649 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 2.93 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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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
Oplophorus gracilirostris (甲殻類)

中国, 17件
引用



PDBj




























