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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: 9ky2 | ||||||||||||
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| タイトル | Structure of beta-arrestin2 in complex with mouse C5aR1pp | ||||||||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR / G protein / beta-arrestin | ||||||||||||
| 機能・相同性 | 機能・相同性情報presynapse organization / Peptide ligand-binding receptors / complement component C5a receptor activity / Regulation of Complement cascade / response to peptidoglycan / angiotensin receptor binding / desensitization of G protein-coupled receptor signaling pathway / G alpha (i) signalling events / G protein-coupled receptor internalization / inositol hexakisphosphate binding ...presynapse organization / Peptide ligand-binding receptors / complement component C5a receptor activity / Regulation of Complement cascade / response to peptidoglycan / angiotensin receptor binding / desensitization of G protein-coupled receptor signaling pathway / G alpha (i) signalling events / G protein-coupled receptor internalization / inositol hexakisphosphate binding / positive regulation of neutrophil chemotaxis / positive regulation of macrophage chemotaxis / phosphatidylinositol-3,4,5-trisphosphate binding / amyloid-beta clearance / positive regulation of vascular endothelial growth factor production / positive regulation of receptor internalization / endocytic vesicle / clathrin-coated pit / neutrophil chemotaxis / Neutrophil degranulation / astrocyte activation / phosphatidylinositol binding / positive regulation of epithelial cell proliferation / mRNA transcription by RNA polymerase II / microglial cell activation / G protein-coupled receptor activity / receptor internalization / cognition / positive regulation of angiogenesis / apical part of cell / protein transport / cytoplasmic vesicle / basolateral plasma membrane / positive regulation of ERK1 and ERK2 cascade / defense response to Gram-positive bacterium / G protein-coupled receptor signaling pathway / signal transduction / nucleus / plasma membrane / cytoplasm 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: 2.78 Å | ||||||||||||
データ登録者 | Banerjee, R. / Yadav, R. / Yadav, M.K. / Ganguly, M. / Mishra, S. / Dalal, A. / Gati, C. / Shukla, A.K. | ||||||||||||
| 資金援助 | インド, 英国, 3件
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引用 | ジャーナル: bioRxiv / 年: 2025タイトル: Molecular fingerprints of a convergent mechanism orchestrating diverse ligand recognition and species-specific pharmacology at the complement anaphylatoxin receptors. 著者: Sudha Mishra / Manish K Yadav / Annu Dalal / Manisankar Ganguly / Ravi Yadav / Kazuhiro Sawada / Divyanshu Tiwari / Nabarun Roy / Nilanjana Banerjee / Jenny N Fung / Jianina Marallag / Cedric ...著者: Sudha Mishra / Manish K Yadav / Annu Dalal / Manisankar Ganguly / Ravi Yadav / Kazuhiro Sawada / Divyanshu Tiwari / Nabarun Roy / Nilanjana Banerjee / Jenny N Fung / Jianina Marallag / Cedric S Cui / Xaria X Li / John D Lee / Calvin Aaron Dsouza / Shirsha Saha / Parishmita Sarma / Ganita Rawat / Houming Zhu / Htet A Khant / Richard J Clark / Fumiya K Sano / Ramanuj Banerjee / Trent M Woodruff / Osamu Nureki / Cornelius Gati / Arun K Shukla / ![]() 要旨: Complement anaphylatoxin receptors (C3aR and C5aR1) are prototypical G protein-coupled receptors (GPCRs) playing crucial physiological roles in innate immunity by combating pathogenic infections and ...Complement anaphylatoxin receptors (C3aR and C5aR1) are prototypical G protein-coupled receptors (GPCRs) playing crucial physiological roles in innate immunity by combating pathogenic infections and orchestrating inflammatory responses. They continue to be important therapeutic targets for multiple disorders including autoimmune diseases, acute and chronic inflammation, and allergy-related conditions. Recent structural coverage has provided important insights into their activation and signaling, however, confounding observations in the literature related to ligand efficacy and functional responses, especially in different model systems, present a major challenge for drug discovery efforts. Here, we systematically and comprehensively profile a broad set of natural and synthetic ligands at C3aR and C5aR1 and discover a previously unanticipated level of functional specialization in terms of species-specific pharmacology and receptor activation. Taking a lead from this, we determine seventeen cryo-EM structures of different ligand-receptor-G-protein complexes and uncover distinct orientation of agonists between the human and mouse receptors despite an overlapping positioning in the orthosteric binding pocket. Combined with extensive mutagenesis and functional assays, these structural snapshots allow us to decode and validate a convergent molecular mechanism involving a "Five-Point-Switch" in these receptors that orchestrates the recognition and efficacy of diverse agonists. We also identify species-specific differences at the level of phosphorylation patterns encoded in the carboxyl-terminus of these receptors and directly visualize their impact on βarr binding and activation using cryo-EM structures. Interestingly, we observe that βarrs engage with the mouse C5aR1 using a variation of previously discovered P-X-P-P phosphorylation motif via a "Sliding-Mechanism" and also exhibit distinct oligomeric state for the human vs. mouse receptors. Taken together, this study elucidates functional specialization at the complement anaphylatoxin receptors and underlying molecular mechanisms, offering a previously lacking framework with direct and immediate implications for the development of novel therapeutics. | ||||||||||||
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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 | 9ky2.cif.gz | 230 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9ky2.ent.gz | 180.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9ky2.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 | 9ky2_validation.pdf.gz | 1.1 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 9ky2_full_validation.pdf.gz | 1.1 MB | 表示 | |
| XML形式データ | 9ky2_validation.xml.gz | 52.2 KB | 表示 | |
| CIF形式データ | 9ky2_validation.cif.gz | 77.5 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ky/9ky2 ftp://data.pdbj.org/pub/pdb/validation_reports/ky/9ky2 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 62636MC ![]() 9kugC ![]() 9kutC ![]() 9kv6C ![]() 9kv8C ![]() 9kvpC ![]() 9kwgC ![]() 9kwxC ![]() 9kx6C ![]() 9kxsC ![]() 9kyuC ![]() 9kz2C ![]() 9kz8C ![]() 9kzkC ![]() 9l0hC ![]() 9umjC ![]() 9umrC ![]() 9umxC 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: 47217.676 Da / 分子数: 2 変異: C17G,C60V,L69V,C126S,C141L,C151V,C243V,C252V,C270S,L278F,S280A 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #2: 抗体 | 分子量: 25512.354 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: 抗体 | 分子量: 23435.064 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: タンパク質・ペプチド | 分子量: 2892.318 Da / 分子数: 2 / 由来タイプ: 合成 / 由来: (合成) ![]() 研究の焦点であるリガンドがあるか | Y | 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
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| 由来(天然) |
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| 由来(組換発現) |
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| 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: TFS 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): 3000 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 電子線照射量: 53.7 e/Å2 / 検出モード: COUNTING / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
| 画像スキャン | 動画フレーム数/画像: 40 |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: NONE | ||||||||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.78 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 285699 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL |
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コントローラー
万見について






インド,
英国, 3件
引用




































PDBj






















FIELD EMISSION GUN