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基本情報
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タイトル | Cryo-EM structure of human ACKR3 in complex with CXCL12, a small molecule partial agonist CCX662, an extracellular Fab, and an intracellular Fab | ||||||||||||||||||||||||
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機能・相同性 | ![]() oculomotor nerve development / chemokine (C-X-C motif) ligand 12 signaling pathway / negative regulation of leukocyte tethering or rolling / positive regulation of mesenchymal stem cell migration / response to ultrasound / C-X-C chemokine binding / telencephalon cell migration / regulation of actin polymerization or depolymerization / C-X-C chemokine receptor activity / CXCL12-activated CXCR4 signaling pathway ...oculomotor nerve development / chemokine (C-X-C motif) ligand 12 signaling pathway / negative regulation of leukocyte tethering or rolling / positive regulation of mesenchymal stem cell migration / response to ultrasound / C-X-C chemokine binding / telencephalon cell migration / regulation of actin polymerization or depolymerization / C-X-C chemokine receptor activity / CXCL12-activated CXCR4 signaling pathway / chemokine receptor binding / positive regulation of vasculature development / CXCR chemokine receptor binding / positive regulation of axon extension involved in axon guidance / positive regulation of dopamine secretion / Signaling by ROBO receptors / scavenger receptor activity / C-C chemokine receptor activity / induction of positive chemotaxis / integrin activation / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage / negative regulation of dendritic cell apoptotic process / C-C chemokine binding / cellular response to chemokine / chemokine-mediated signaling pathway / positive regulation of monocyte chemotaxis / blood circulation / Chemokine receptors bind chemokines / chemokine activity / positive regulation of calcium ion import / detection of temperature stimulus involved in sensory perception of pain / positive regulation of cell adhesion / positive regulation of T cell migration / vasculogenesis / animal organ regeneration / coreceptor activity / detection of mechanical stimulus involved in sensory perception of pain / clathrin-coated pit / Nuclear signaling by ERBB4 / positive regulation of endothelial cell proliferation / positive regulation of neuron differentiation / adult locomotory behavior / cell chemotaxis / calcium-mediated signaling / axon guidance / growth factor activity / neuron migration / response to virus / receptor internalization / recycling endosome / response to peptide hormone / defense response / intracellular calcium ion homeostasis / chemotaxis / integrin binding / G alpha (i) signalling events / positive regulation of cytosolic calcium ion concentration / angiogenesis / collagen-containing extracellular matrix / Estrogen-dependent gene expression / positive regulation of ERK1 and ERK2 cascade / early endosome / response to hypoxia / cell adhesion / endosome / immune response / G protein-coupled receptor signaling pathway / negative regulation of cell population proliferation / external side of plasma membrane / intracellular membrane-bounded organelle / signaling receptor binding / cell surface / signal transduction / extracellular exosome / extracellular region / plasma membrane 類似検索 - 分子機能 | ||||||||||||||||||||||||
生物種 | ![]() | ||||||||||||||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.3 Å | ||||||||||||||||||||||||
![]() | Yen YC / Schafer CT / Gustavsson M / Handel TM / Tesmer JJG | ||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structures of atypical chemokine receptor 3 reveal the basis for its promiscuity and signaling bias. 著者: Yu-Chen Yen / Christopher T Schafer / Martin Gustavsson / Stefanie A Eberle / Pawel K Dominik / Dawid Deneka / Penglie Zhang / Thomas J Schall / Anthony A Kossiakoff / John J G Tesmer / Tracy M Handel / ![]() ![]() ![]() 要旨: Both CXC chemokine receptor 4 (CXCR4) and atypical chemokine receptor 3 (ACKR3) are activated by the chemokine CXCL12 yet evoke distinct cellular responses. CXCR4 is a canonical G protein-coupled ...Both CXC chemokine receptor 4 (CXCR4) and atypical chemokine receptor 3 (ACKR3) are activated by the chemokine CXCL12 yet evoke distinct cellular responses. CXCR4 is a canonical G protein-coupled receptor (GPCR), whereas ACKR3 is intrinsically biased for arrestin. The molecular basis for this difference is not understood. Here, we describe cryo-EM structures of ACKR3 in complex with CXCL12, a more potent CXCL12 variant, and a small-molecule agonist. The bound chemokines adopt an unexpected pose relative to those established for CXCR4 and observed in other receptor-chemokine complexes. Along with functional studies, these structures provide insight into the ligand-binding promiscuity of ACKR3, why it fails to couple to G proteins, and its bias toward β-arrestin. The results lay the groundwork for understanding the physiological interplay of ACKR3 with other GPCRs. | ||||||||||||||||||||||||
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構造の表示
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ダウンロードとリンク
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マップデータ | ![]() | 97.2 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 21.4 KB 21.4 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 10.4 KB | 表示 | ![]() |
画像 | ![]() | 83 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 425.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 424.8 KB | 表示 | |
XML形式データ | ![]() | 11.9 KB | 表示 | |
CIF形式データ | ![]() | 15.6 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 | ![]() 7sk8MC ![]() 7sk3C ![]() 7sk4C ![]() 7sk5C ![]() 7sk6C ![]() 7sk7C ![]() 7sk9C M: このマップから作成された原子モデル 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
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.08 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
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試料の構成要素
+全体 : Complex structure of CID25-ACKR3-CXCL12-CCX662-CID24
+超分子 #1: Complex structure of CID25-ACKR3-CXCL12-CCX662-CID24
+分子 #1: Atypical chemokine receptor 3
+分子 #2: Stromal cell-derived factor 1
+分子 #3: CID25 Fab light chain
+分子 #4: CID25 Fab heavy chain
+分子 #5: CID24 Fab light chain
+分子 #6: CID24 Fab heavy chain
+分子 #7: CHOLESTEROL
+分子 #8: Lauryl Maltose Neopentyl Glycol
+分子 #9: (1R)-4-[7-(3-carboxypropoxy)-6-methylquinolin-8-yl]-1-{[2-(4-hydr...
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.2 mg/mL | |||||||||||||||
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緩衝液 | pH: 8 構成要素:
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グリッド | モデル: Quantifoil R1.2/1.3 / 材質: COPPER / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 雰囲気: AIR | |||||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 53.8 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | C2レンズ絞り径: 100.0 µm / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 1.0 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |