+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8zjk | ||||||||||||
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タイトル | Structure of DOCK5/ELMO1/Rac1 core (RhoG/DOCK5/ELMO1/Rac1 dataset, class 3) | ||||||||||||
要素 |
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キーワード | SIGNALING PROTEIN / ELMO / DOCK / GEF / GTPASE / RHO / RAC | ||||||||||||
機能・相同性 | 機能・相同性情報 negative regulation of vascular associated smooth muscle contraction / regulation of respiratory burst / regulation of neutrophil migration / localization within membrane / negative regulation of interleukin-23 production / podosome assembly / Activated NTRK2 signals through CDK5 / negative regulation of receptor-mediated endocytosis / ruffle assembly / regulation of hydrogen peroxide metabolic process ...negative regulation of vascular associated smooth muscle contraction / regulation of respiratory burst / regulation of neutrophil migration / localization within membrane / negative regulation of interleukin-23 production / podosome assembly / Activated NTRK2 signals through CDK5 / negative regulation of receptor-mediated endocytosis / ruffle assembly / regulation of hydrogen peroxide metabolic process / NTRK2 activates RAC1 / engulfment of apoptotic cell / Inactivation of CDC42 and RAC1 / NADPH oxidase complex / respiratory burst / cortical cytoskeleton organization / WNT5:FZD7-mediated leishmania damping / guanyl-nucleotide exchange factor complex / SEMA3A-Plexin repulsion signaling by inhibiting Integrin adhesion / hepatocyte growth factor receptor signaling pathway / bone remodeling / myoblast fusion / ruffle organization / 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 / Nef and signal transduction / positive regulation of vascular associated smooth muscle cell migration / RHO GTPases activate KTN1 / regulation of nitric oxide biosynthetic process / PCP/CE pathway / Activation of RAC1 / motor neuron axon guidance / positive regulation of neutrophil chemotaxis / regulation of lamellipodium assembly / Azathioprine ADME / MET activates RAP1 and RAC1 / DCC mediated attractive signaling / anchoring junction / positive regulation of cell-substrate adhesion / Sema4D mediated inhibition of cell attachment and migration / CD28 dependent Vav1 pathway / Ephrin signaling / podosome / Wnt signaling pathway, planar cell polarity pathway / lamellipodium assembly / small GTPase-mediated signal transduction / regulation of cell size / Rho GDP-dissociation inhibitor binding / positive regulation of Rho protein signal transduction / Activation of RAC1 downstream of NMDARs / phagocytosis, engulfment / establishment or maintenance of cell polarity / NRAGE signals death through JNK / positive regulation of epithelial cell migration / Rac protein signal transduction / RHO GTPases activate PAKs / positive regulation of focal adhesion assembly / Sema3A PAK dependent Axon repulsion / semaphorin-plexin signaling pathway / ficolin-1-rich granule membrane / RHOG GTPase cycle / EPH-ephrin mediated repulsion of cells / RHO GTPases Activate NADPH Oxidases / anatomical structure morphogenesis / RHO GTPases Activate WASPs and WAVEs / RHO GTPases activate IQGAPs / positive regulation of lamellipodium assembly / PTK6 Regulates RHO GTPases, RAS GTPase and MAP kinases / positive regulation of substrate adhesion-dependent cell spreading / RHO GTPases activate PKNs / positive regulation of stress fiber assembly / GPVI-mediated activation cascade / positive regulation of microtubule polymerization / EPHB-mediated forward signaling / RAC1 GTPase cycle / regulation of cell migration / actin filament polymerization / positive regulation of endothelial cell migration / GTPase activator activity / substrate adhesion-dependent cell spreading / cell-matrix adhesion / cell chemotaxis / secretory granule membrane / small monomeric GTPase / VEGFR2 mediated vascular permeability / guanyl-nucleotide exchange factor activity / Signal transduction by L1 / actin filament organization / cell projection / cell motility / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / regulation of actin cytoskeleton organization / FCERI mediated MAPK activation / FCGR3A-mediated phagocytosis / neuron migration 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: 4.23 Å | ||||||||||||
データ登録者 | Kukimoto-Niino, M. / Katsura, K. / Ishizuka-Katsura, Y. / Mishima-Tsumagari, C. / Yonemochi, M. / Inoue, M. / Nakagawa, R. / Kaushik, R. / Zhang, K.Y.J. / Shirouzu, M. | ||||||||||||
資金援助 | 日本, 3件
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引用 | ジャーナル: J Biol Chem / 年: 2024 タイトル: RhoG facilitates a conformational transition in the guanine nucleotide exchange factor complex DOCK5/ELMO1 to an open state. 著者: Mutsuko Kukimoto-Niino / Kazushige Katsura / Yoshiko Ishizuka-Katsura / Chiemi Mishima-Tsumagari / Mayumi Yonemochi / Mio Inoue / Reiko Nakagawa / Rahul Kaushik / Kam Y J Zhang / Mikako Shirouzu / 要旨: The dedicator of cytokinesis (DOCK)/engulfment and cell motility (ELMO) complex serves as a guanine nucleotide exchange factor (GEF) for the GTPase Rac. RhoG, another GTPase, activates the ELMO-DOCK- ...The dedicator of cytokinesis (DOCK)/engulfment and cell motility (ELMO) complex serves as a guanine nucleotide exchange factor (GEF) for the GTPase Rac. RhoG, another GTPase, activates the ELMO-DOCK-Rac pathway during engulfment and migration. Recent cryo-EM structures of the DOCK2/ELMO1 and DOCK2/ELMO1/Rac1 complexes have identified closed and open conformations that are key to understanding the autoinhibition mechanism. Nevertheless, the structural details of RhoG-mediated activation of the DOCK/ELMO complex remain elusive. Herein, we present cryo-EM structures of DOCK5/ELMO1 alone and in complex with RhoG and Rac1. The DOCK5/ELMO1 structure exhibits a closed conformation similar to that of DOCK2/ELMO1, suggesting a shared regulatory mechanism of the autoinhibitory state across DOCK-A/B subfamilies (DOCK1-5). Conversely, the RhoG/DOCK5/ELMO1/Rac1 complex adopts an open conformation that differs from that of the DOCK2/ELMO1/Rac1 complex, with RhoG binding to both ELMO1 and DOCK5. The alignment of the DOCK5 phosphatidylinositol (3,4,5)-trisphosphate binding site with the RhoG C-terminal lipidation site suggests simultaneous binding of RhoG and DOCK5/ELMO1 to the plasma membrane. Structural comparison of the apo and RhoG-bound states revealed that RhoG facilitates a closed-to-open state conformational change of DOCK5/ELMO1. Biochemical and surface plasmon resonance (SPR) assays confirm that RhoG enhances the Rac GEF activity of DOCK5/ELMO1 and increases its binding affinity for Rac1. Further analysis of structural variability underscored the conformational flexibility of the DOCK5/ELMO1/Rac1 complex core, potentially facilitating the proximity of the DOCK5 GEF domain to the plasma membrane. These findings elucidate the structural mechanism underlying the RhoG-induced allosteric activation and membrane binding of the DOCK/ELMO complex. | ||||||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8zjk.cif.gz | 742.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8zjk.ent.gz | 594.1 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8zjk.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 | 8zjk_validation.pdf.gz | 1.4 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8zjk_full_validation.pdf.gz | 1.6 MB | 表示 | |
XML形式データ | 8zjk_validation.xml.gz | 137.1 KB | 表示 | |
CIF形式データ | 8zjk_validation.cif.gz | 207.3 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/zj/8zjk ftp://data.pdbj.org/pub/pdb/validation_reports/zj/8zjk | HTTPS FTP |
-関連構造データ
関連構造データ | 60148MC 8jhkC 8xm7C 8zj2C 8zjiC 8zjjC 8zjlC 8zjmC C: 同じ文献を引用 (文献) M: このデータのモデリングに利用したマップデータ |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
-集合体
登録構造単位 |
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-要素
#1: タンパク質 | 分子量: 84337.719 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ELMO1, KIAA0281 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q92556 #2: タンパク質 | 分子量: 191492.125 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: DOCK5 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9H7D0 #3: タンパク質 | 分子量: 20244.258 Da / 分子数: 2 / Mutation: G15A / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: RAC1, TC25, MIG5 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P63000, small monomeric GTPase |
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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 |
-試料調製
構成要素 | 名称: DOCK5/ELMO1/Rac1 complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 実験値: NO |
由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
-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 / 倍率(公称値): 64000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 11976 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 2483502 | ||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C2 (2回回転対称) | ||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 4.23 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 120707 / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 7DPA Accession code: 7DPA / Source name: PDB / タイプ: experimental model | ||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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