+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-26734 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Cryo-EM structure of WAVE regulatory complex with Rac1 bound on both A and D site | |||||||||
マップデータ | WRC230VCA-2Rac1 complex sharpened map | |||||||||
試料 |
| |||||||||
キーワード | actin regulator / GTPase binding protein / cytoskeletal regulator / CELL INVASION | |||||||||
機能・相同性 | 機能・相同性情報 peripheral region of growth cone / negative regulation of synaptic vesicle recycling / SCAR complex / positive regulation of neurotrophin TRK receptor signaling pathway / lamellipodium morphogenesis / positive regulation of Arp2/3 complex-mediated actin nucleation / Arp2/3 complex binding / modification of synaptic structure / regulation of actin polymerization or depolymerization / central region of growth cone ...peripheral region of growth cone / negative regulation of synaptic vesicle recycling / SCAR complex / positive regulation of neurotrophin TRK receptor signaling pathway / lamellipodium morphogenesis / positive regulation of Arp2/3 complex-mediated actin nucleation / Arp2/3 complex binding / modification of synaptic structure / regulation of actin polymerization or depolymerization / central region of growth cone / modification of postsynaptic actin cytoskeleton / regulation of respiratory burst / dendrite extension / regulation of neutrophil migration / regulation of translation at postsynapse, modulating synaptic transmission / localization within membrane / negative regulation of interleukin-23 production / Activated NTRK2 signals through CDK5 / negative regulation of receptor-mediated endocytosis / filopodium tip / regulation of hydrogen peroxide metabolic process / ruffle assembly / NTRK2 activates RAC1 / engulfment of apoptotic cell / Inactivation of CDC42 and RAC1 / NADPH oxidase complex / respiratory burst / regulation of modification of postsynaptic actin cytoskeleton / cortical cytoskeleton organization / WNT5:FZD7-mediated leishmania damping / regulation of actin filament polymerization / SEMA3A-Plexin repulsion signaling by inhibiting Integrin adhesion / hepatocyte growth factor receptor signaling pathway / RNA 7-methylguanosine cap binding / ruffle organization / Nef and signal transduction / regulation of stress fiber assembly / thioesterase binding / cell projection assembly / negative regulation of fibroblast migration / RHO GTPases activate CIT / sphingosine-1-phosphate receptor signaling pathway / axon extension / RHO GTPases activate KTN1 / regulation of nitric oxide biosynthetic process / motor neuron axon guidance / PCP/CE pathway / Activation of RAC1 / positive regulation of neutrophil chemotaxis / regulation of lamellipodium assembly / positive regulation of ruffle assembly / Azathioprine ADME / MET activates RAP1 and RAC1 / DCC mediated attractive signaling / positive regulation of cell-substrate adhesion / positive regulation of dendrite development / Sema4D mediated inhibition of cell attachment and migration / CD28 dependent Vav1 pathway / Ephrin signaling / Wnt signaling pathway, planar cell polarity pathway / lamellipodium assembly / regulation of myelination / cortical actin cytoskeleton organization / protein kinase A binding / positive regulation of actin filament polymerization / NRAGE signals death through JNK / positive regulation of Rho protein signal transduction / small GTPase-mediated signal transduction / regulation of cell size / Rho GDP-dissociation inhibitor binding / Activation of RAC1 downstream of NMDARs / establishment or maintenance of cell polarity / Rac protein signal transduction / protein kinase A regulatory subunit binding / dendritic growth cone / filamentous actin / RHO GTPases activate PAKs / positive regulation of focal adhesion assembly / lamellipodium membrane / Sema3A PAK dependent Axon repulsion / semaphorin-plexin signaling pathway / excitatory synapse / ficolin-1-rich granule membrane / RHOG GTPase cycle / RHO GTPases Activate NADPH Oxidases / EPH-ephrin mediated repulsion of cells / anatomical structure morphogenesis / RAC2 GTPase cycle / RHO GTPases Activate WASPs and WAVEs / RAC3 GTPase cycle / RHO GTPases activate IQGAPs / positive regulation of axon extension / response to electrical stimulus / positive regulation of lamellipodium assembly / axonal growth cone / PTK6 Regulates RHO GTPases, RAS GTPase and MAP kinases / positive regulation of substrate adhesion-dependent cell spreading / RHO GTPases activate PKNs / translation repressor activity / GPVI-mediated activation cascade 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.0 Å | |||||||||
データ登録者 | Ding B / Yang S / Chen B / Chowdhury S | |||||||||
資金援助 | 米国, 1件
| |||||||||
引用 | ジャーナル: Nat Commun / 年: 2022 タイトル: Structures reveal a key mechanism of WAVE regulatory complex activation by Rac1 GTPase. 著者: Bojian Ding / Sheng Yang / Matthias Schaks / Yijun Liu / Abbigale J Brown / Klemens Rottner / Saikat Chowdhury / Baoyu Chen / 要旨: The Rho-family GTPase Rac1 activates the WAVE regulatory complex (WRC) to drive Arp2/3 complex-mediated actin polymerization in many essential processes. Rac1 binds to WRC at two distinct sites-the ...The Rho-family GTPase Rac1 activates the WAVE regulatory complex (WRC) to drive Arp2/3 complex-mediated actin polymerization in many essential processes. Rac1 binds to WRC at two distinct sites-the A and D sites. Precisely how Rac1 binds and how the binding triggers WRC activation remain unknown. Here we report WRC structures by itself, and when bound to single or double Rac1 molecules, at ~3 Å resolutions by cryogenic-electron microscopy. The structures reveal that Rac1 binds to the two sites by distinct mechanisms, and binding to the A site, but not the D site, drives WRC activation. Activation involves a series of unique conformational changes leading to the release of sequestered WCA (WH2-central-acidic) polypeptide, which stimulates the Arp2/3 complex to polymerize actin. Together with biochemical and cellular analyses, the structures provide a novel mechanistic understanding of how the Rac1-WRC-Arp2/3-actin signaling axis is regulated in diverse biological processes and diseases. | |||||||||
履歴 |
|
-構造の表示
添付画像 |
---|
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_26734.map.gz | 13.9 MB | EMDBマップデータ形式 | |
---|---|---|---|---|
ヘッダ (付随情報) | emd-26734-v30.xml emd-26734.xml | 32.6 KB 32.6 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_26734_fsc.xml | 11.7 KB | 表示 | FSCデータファイル |
画像 | emd_26734.png | 142 KB | ||
マスクデータ | emd_26734_msk_1.map | 64 MB | マスクマップ | |
Filedesc metadata | emd-26734.cif.gz | 9.3 KB | ||
その他 | emd_26734_additional_1.map.gz emd_26734_half_map_1.map.gz emd_26734_half_map_2.map.gz | 48.1 MB 46.7 MB 46.7 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-26734 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-26734 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_26734_validation.pdf.gz | 903.5 KB | 表示 | EMDB検証レポート |
---|---|---|---|---|
文書・詳細版 | emd_26734_full_validation.pdf.gz | 903.1 KB | 表示 | |
XML形式データ | emd_26734_validation.xml.gz | 16.3 KB | 表示 | |
CIF形式データ | emd_26734_validation.cif.gz | 21.5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-26734 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-26734 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
---|---|
「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_26734.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | WRC230VCA-2Rac1 complex sharpened map | ||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 0.8757 Å | ||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
|
-添付データ
-マスク #1
ファイル | emd_26734_msk_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-追加マップ: WRC230VCA-2Rac1 complex masked unsharpened map
ファイル | emd_26734_additional_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | WRC230VCA-2Rac1 complex masked unsharpened map | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: WRC230VCA-2Rac1 complex unfiltered unmasked unsharpened first half map...
ファイル | emd_26734_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | WRC230VCA-2Rac1 complex unfiltered unmasked unsharpened first half map | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: WRC230VCA-2Rac1 complex unfiltered unmasked unsharpened second half map...
ファイル | emd_26734_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | WRC230VCA-2Rac1 complex unfiltered unmasked unsharpened second half map | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-試料の構成要素
+全体 : WAVE regulatory complex with Rac1 bound to A and D sites
+超分子 #1: WAVE regulatory complex with Rac1 bound to A and D sites
+分子 #1: Cytoplasmic FMR1-interacting protein 1
+分子 #2: Nck-associated protein 1
+分子 #3: Wiskott-Aldrich syndrome protein family member 1
+分子 #4: Protein BRICK1
+分子 #5: Abl interactor 2
+分子 #6: Ras-related C3 botulinum toxin substrate 1
+分子 #7: Ras-related C3 botulinum toxin substrate 1
+分子 #8: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
+分子 #9: MAGNESIUM ION
+分子 #10: GUANOSINE-5'-TRIPHOSPHATE
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
濃度 | 0.15 mg/mL |
---|---|
緩衝液 | pH: 7 |
グリッド | モデル: UltrAuFoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 支持フィルム - 材質: GOLD / 支持フィルム - トポロジー: HOLEY ARRAY / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 120 sec. / 前処理 - 雰囲気: AIR / 前処理 - 気圧: 0.019 kPa / 詳細: 15 mA |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 95 % / チャンバー内温度: 277.15 K / 装置: HOMEMADE PLUNGER |
-電子顕微鏡法
顕微鏡 | FEI TALOS ARCTICA |
---|---|
詳細 | Data were collected by shifting the stage to target exposure positions. |
撮影 | フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 検出モード: COUNTING / デジタル化 - サイズ - 横: 4096 pixel / デジタル化 - サイズ - 縦: 4096 pixel / 撮影したグリッド数: 1 / 実像数: 1285 / 平均露光時間: 40.0 sec. / 平均電子線量: 41.34 e/Å2 詳細: Each micrograph was acquired as dose-fractionated movies consisting of 62 frames per movie. |
電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | C2レンズ絞り径: 50.0 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): 1.2 µm / 最小 デフォーカス(公称値): 0.8 µm / 倍率(公称値): 120000 |
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: Talos Arctica / 画像提供: FEI Company |