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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: 8xqf | ||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of human monomeric APJR-Gi complex with apelin-13. | ||||||||||||||||||||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR / APJR / Gi / Apelin-13. | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報apelin receptor binding / positive regulation of corticotropin-releasing hormone secretion / positive regulation of corticotropin secretion / : / apelin receptor activity / apelin receptor signaling pathway / mechanoreceptor activity / regulation of gap junction assembly / vascular associated smooth muscle cell differentiation / negative regulation of fibroblast growth factor receptor signaling pathway ...apelin receptor binding / positive regulation of corticotropin-releasing hormone secretion / positive regulation of corticotropin secretion / : / apelin receptor activity / apelin receptor signaling pathway / mechanoreceptor activity / regulation of gap junction assembly / vascular associated smooth muscle cell differentiation / negative regulation of fibroblast growth factor receptor signaling pathway / atrioventricular valve development / positive regulation of G protein-coupled receptor internalization / positive regulation of heat generation / regulation of body fluid levels / positive regulation of heart contraction / 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 / drinking behavior / regulation of the force of heart contraction / coronary vasculature development / vasculature development / G protein-coupled peptide receptor activity / negative regulation of systemic arterial blood pressure / adult heart development / positive regulation of vascular endothelial cell proliferation / negative regulation of vasoconstriction / aorta development / negative regulation of cardiac muscle hypertrophy in response to stress / ventricular septum morphogenesis / blood vessel development / heart looping / negative regulation of vascular associated smooth muscle cell proliferation / positive regulation of phosphorylation / vasculogenesis / positive regulation of heart rate / negative regulation of blood pressure / lactation / gastrulation / G protein-coupled serotonin receptor binding / Peptide ligand-binding receptors / positive regulation of release of sequestered calcium ion into cytosol / electron transport chain / hormone activity / positive regulation of miRNA transcription / G protein-coupled receptor activity / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / positive regulation of angiogenesis / 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 alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / extracellular vesicle / sensory perception of taste / heart development / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / signaling receptor activity / retina development in camera-type eye / regulation of gene expression / GTPase binding / fibroblast proliferation / angiogenesis / Ca2+ pathway / midbody / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells 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: 3.13 Å | ||||||||||||||||||||||||
データ登録者 | Yue, Y. / Liu, L.E. / Wu, L.J. / Xu, F. | ||||||||||||||||||||||||
| 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 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: 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 | 8xqf.cif.gz | 259.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8xqf.ent.gz | 197.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8xqf.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/xq/8xqf ftp://data.pdbj.org/pub/pdb/validation_reports/xq/8xqf | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 38575MC ![]() 8xqeC ![]() 8xqiC ![]() 8xqjC ![]() 8z74C ![]() 8z7jC 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
-タンパク質 , 2種, 2分子 AR
| #1: タンパク質 | 分子量: 40616.211 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: GNAI1 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: A0A096MZM0 |
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| #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) Homo sapiens (ヒト) / 遺伝子: cybC, APLNR, AGTRL1, APJ / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P0ABE7, UniProt: P35414 |
-Guanine nucleotide-binding protein ... , 2種, 2分子 BC
| #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) 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: 7861.143 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 |
-抗体 / タンパク質・ペプチド , 2種, 2分子 SD
| #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) Homo sapiens (ヒト) / 発現宿主: Trichoplusia ni (イラクサキンウワバ) |
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| #6: タンパク質・ペプチド | 分子量: 1554.860 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: APLN, APEL / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9ULZ1 |
-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: monomeric APJR-Gi complex with apelin-13 / タイプ: COMPLEX / Entity ID: all / 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: 7.4 |
| 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: 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): 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: 3.13 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 40681 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 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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Trichoplusia ni (イラクサキンウワバ)
FIELD EMISSION GUN