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基本情報
登録情報 | データベース: PDB / ID: 8z7j | ||||||||||||||||||||||||
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タイトル | Cryo-EM structure of APJR-Gi complex with agonistic antibody | ||||||||||||||||||||||||
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![]() | SIGNALING PROTEIN / GPCR / APJR / Gi / Agonistic Antibody | ||||||||||||||||||||||||
機能・相同性 | ![]() negative regulation of cAMP-mediated signaling / apelin receptor activity / apelin receptor signaling pathway / mechanoreceptor activity / regulation of gap junction assembly / positive regulation of G protein-coupled receptor internalization / vascular associated smooth muscle cell differentiation / atrioventricular valve development / regulation of body fluid levels / venous blood vessel development ...negative regulation of cAMP-mediated signaling / apelin receptor activity / apelin receptor signaling pathway / mechanoreceptor activity / regulation of gap junction assembly / positive regulation of G protein-coupled receptor internalization / vascular associated smooth muscle cell differentiation / atrioventricular valve development / regulation of body fluid levels / venous blood vessel development / positive regulation of cardiac muscle hypertrophy in response to stress / endocardial cushion formation / positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis / coronary vasculature development / adult heart development / vasculature development / G protein-coupled peptide receptor activity / negative regulation of cardiac muscle hypertrophy in response to stress / aorta development / ventricular septum morphogenesis / blood vessel development / heart looping / vasculogenesis / 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 / gastrulation / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / positive regulation of release of sequestered calcium ion into cytosol / Peptide ligand-binding receptors / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor activity / electron transport chain / 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 / positive regulation of angiogenesis / 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 / GDP binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / 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 activity / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / regulation of gene expression / retina development in camera-type eye / G protein activity / heart development / 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 / angiogenesis 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: 3.12 Å | ||||||||||||||||||||||||
![]() | Yue, Y. / Liu, L.E. / Wu, L.J. / Xu, F. | ||||||||||||||||||||||||
資金援助 | 1件
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![]() | ![]() タイトル: Structural insights into the regulation of monomeric and dimeric apelin receptor. 著者: Yang Yue / Lier Liu / Lijie Wu / Chanjuan Xu / Man Na / Shenhui Liu / Yuxuan Liu / Fei Li / Junlin Liu / Songting Shi / Hui Lei / Minxuan Zhao / Tianjie Yang / Wei Ji / Arthur Wang / Michael ...著者: Yang Yue / Lier Liu / Lijie Wu / Chanjuan Xu / Man Na / Shenhui Liu / Yuxuan Liu / Fei Li / Junlin Liu / Songting Shi / Hui Lei / Minxuan Zhao / Tianjie Yang / Wei Ji / Arthur Wang / Michael A Hanson / Raymond C Stevens / Jianfeng Liu / Fei Xu / ![]() ![]() 要旨: The apelin receptor (APJR) emerges as a promising drug target for cardiovascular health and muscle regeneration. While prior research unveiled the structural versatility of APJR in coupling to Gi ...The apelin receptor (APJR) emerges as a promising drug target for cardiovascular health and muscle regeneration. While prior research unveiled the structural versatility of APJR in coupling to Gi proteins as a monomer or dimer, the dynamic regulation within the APJR dimer during activation remains poorly understood. In this study, we present the structures of the APJR dimer and monomer complexed with its endogenous ligand apelin-13. In the dimeric structure, apelin-13 binds exclusively to one protomer that is coupled with Gi proteins, revealing a distinct ligand-binding behavior within APJR homodimers. Furthermore, binding of an antagonistic antibody induces a more compact dimerization by engaging both protomers. Notably, structural analyses of the APJR dimer complexed with an agonistic antibody, with or without Gi proteins, suggest that G protein coupling may promote the dissociation of the APJR dimer during activation. These findings underscore the intricate interplay between ligands, dimerization, and G protein coupling in regulating APJR signaling pathways. | ||||||||||||||||||||||||
履歴 |
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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 | ![]() | 280.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 215 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 50.6 KB | 表示 | |
CIF形式データ | ![]() | 76.2 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 | ![]() 39816MC ![]() 8xqeC ![]() 8xqfC ![]() 8xqiC ![]() 8xqjC ![]() 8z74C 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 ABC
#1: タンパク質 | 分子量: 40559.160 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: タンパク質 | 分子量: 37416.930 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#3: 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 , 1種, 1分子 R
#4: タンパク質 | 分子量: 54312.578 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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-抗体 , 2種, 2分子 SN
#5: 抗体 | 分子量: 27784.896 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#6: 抗体 | 分子量: 13929.495 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-詳細
Has protein modification | Y |
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-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: APJR complexed with gi / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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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: FEI TITAN 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): 2200 nm / 最小 デフォーカス(公称値): 700 nm |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k 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 ONLY | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.12 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 65206 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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