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基本情報
登録情報 | データベース: EMDB / ID: EMD-21950 | |||||||||
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タイトル | Cryo-EM structure of the human chemokine receptor CCR6 in complex with CCL20 and a Go protein | |||||||||
![]() | Chemokine receptor CCR6 in complex with CCL20 and a Go protein | |||||||||
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機能・相同性 | ![]() isotype switching to IgA isotypes / DN3 thymocyte differentiation / thymocyte migration / positive regulation of flagellated sperm motility involved in capacitation / CCR6 chemokine receptor binding / Beta defensins / sperm principal piece / regulation of T cell migration / positive regulation of dendritic cell chemotaxis / T cell migration ...isotype switching to IgA isotypes / DN3 thymocyte differentiation / thymocyte migration / positive regulation of flagellated sperm motility involved in capacitation / CCR6 chemokine receptor binding / Beta defensins / sperm principal piece / regulation of T cell migration / positive regulation of dendritic cell chemotaxis / T cell migration / DN2 thymocyte differentiation / lymphocyte migration / chemokine receptor activity / CCR chemokine receptor binding / lymphocyte chemotaxis / leukocyte migration involved in inflammatory response / C-C chemokine receptor activity / C-C chemokine binding / 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 / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / vesicle docking involved in exocytosis / chemokine-mediated signaling pathway / G alpha (q) signalling events / G alpha (i) signalling events / Chemokine receptors bind chemokines / Thrombin signalling through proteinase activated receptors (PARs) / chemokine activity / alkylglycerophosphoethanolamine phosphodiesterase activity / dendritic cell chemotaxis / sperm plasma membrane / G protein-coupled dopamine receptor signaling pathway / photoreceptor outer segment membrane / regulation of heart contraction / spectrin binding / positive regulation of epithelial cell migration / plasma membrane => GO:0005886 / Interleukin-10 signaling / monocyte chemotaxis / humoral immune response / : / mu-type opioid receptor binding / photoreceptor outer segment / corticotropin-releasing hormone receptor 1 binding / sperm flagellum / positive regulation of T cell migration / cellular response to interleukin-1 / negative regulation of insulin secretion / cellular defense response / G protein-coupled serotonin receptor binding / sperm midpiece / cardiac muscle cell apoptotic process / photoreceptor inner segment / neutrophil chemotaxis / cell chemotaxis / locomotory behavior / muscle contraction / calcium-mediated signaling / electron transport chain / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / cellular response to type II interferon / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling 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: 3.34 Å | |||||||||
![]() | Wasilko DJ / Johnson ZL / Ammirati M / Han S / Wu H | |||||||||
![]() | ![]() タイトル: Structural basis for chemokine receptor CCR6 activation by the endogenous protein ligand CCL20. 著者: David Jonathan Wasilko / Zachary Lee Johnson / Mark Ammirati / Ye Che / Matthew C Griffor / Seungil Han / Huixian Wu / ![]() 要旨: Chemokines are important protein-signaling molecules that regulate various immune responses by activating chemokine receptors which belong to the G protein-coupled receptor (GPCR) superfamily. ...Chemokines are important protein-signaling molecules that regulate various immune responses by activating chemokine receptors which belong to the G protein-coupled receptor (GPCR) superfamily. Despite the substantial progression of our structural understanding of GPCR activation by small molecule and peptide agonists, the molecular mechanism of GPCR activation by protein agonists remains unclear. Here, we present a 3.3-Å cryo-electron microscopy structure of the human chemokine receptor CCR6 bound to its endogenous ligand CCL20 and an engineered Go. CCL20 binds in a shallow extracellular pocket, making limited contact with the core 7-transmembrane (TM) bundle. The structure suggests that this mode of binding induces allosterically a rearrangement of a noncanonical toggle switch and the opening of the intracellular crevice for G protein coupling. Our results demonstrate that GPCR activation by a protein agonist does not always require substantial interactions between ligand and the 7TM core region. | |||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
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ダウンロードとリンク
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マップデータ | ![]() | 201.9 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 25.5 KB 25.5 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 13.7 KB | 表示 | ![]() |
画像 | ![]() | 119.7 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 494.2 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 493.8 KB | 表示 | |
XML形式データ | ![]() | 13.1 KB | 表示 | |
CIF形式データ | ![]() | 17.6 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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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注釈 | Chemokine receptor CCR6 in complex with CCL20 and a Go protein | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.87 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
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試料の構成要素
+全体 : CCR6-CCL20-Go complex
+超分子 #1: CCR6-CCL20-Go complex
+超分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,...
+超分子 #3: C-C motif chemokine 20, Guanine nucleotide-binding protein G(o) s...
+超分子 #4: scFv16
+分子 #1: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+分子 #2: C-C motif chemokine 20
+分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+分子 #4: Guanine nucleotide-binding protein G(o) subunit alpha,Guanine nuc...
+分子 #5: scFv16
+分子 #6: C-C chemokine receptor type 6,C-C chemokine receptor type 6
-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 | 6.8 mg/mL | |||||||||||||||||||||
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緩衝液 | pH: 7.5 構成要素:
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グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / 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: PLASMA CLEANING | |||||||||||||||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277.0 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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温度 | 最低: 80.0 K / 最高: 100.0 K |
特殊光学系 | エネルギーフィルター - 名称: GIF Quantum LS / エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: SUPER-RESOLUTION / デジタル化 - サイズ - 横: 3838 pixel / デジタル化 - サイズ - 縦: 3710 pixel / デジタル化 - 画像ごとのフレーム数: 1-50 / 撮影したグリッド数: 1 / 実像数: 5303 / 平均露光時間: 8.0 sec. / 平均電子線量: 81.0 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): 2.0 µm / 最小 デフォーカス(公称値): 0.6 µm / 倍率(公称値): 165000 |
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 |
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画像解析
-原子モデル構築 1
初期モデル |
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精密化 | 空間: REAL / プロトコル: RIGID BODY FIT | ||||||||
得られたモデル | ![]() PDB-6wwz: |