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基本情報
登録情報 | データベース: PDB / ID: 9dva | |||||||||
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タイトル | F-actin binding interface of alpha-E-catenin ABD (cadherin-catenin complex) and afadin | |||||||||
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![]() | STRUCTURAL PROTEIN / Cytoskeleton / cell adhesion | |||||||||
機能・相同性 | ![]() regulation of oligodendrocyte progenitor proliferation / negative regulation of integrin-mediated signaling pathway / radial glial cell differentiation / adherens junction maintenance / establishment of protein localization to plasma membrane / VEGFR2 mediated vascular permeability / protein localization to cell junction / Adherens junctions interactions / RHO GTPases activate IQGAPs / pore complex assembly ...regulation of oligodendrocyte progenitor proliferation / negative regulation of integrin-mediated signaling pathway / radial glial cell differentiation / adherens junction maintenance / establishment of protein localization to plasma membrane / VEGFR2 mediated vascular permeability / protein localization to cell junction / Adherens junctions interactions / RHO GTPases activate IQGAPs / pore complex assembly / gamma-catenin binding / epithelial cell-cell adhesion / zonula adherens / gap junction assembly / neuroepithelial cell differentiation / Striated Muscle Contraction / cellular response to indole-3-methanol / telencephalon development / flotillin complex / vinculin binding / negative regulation of cell motility / Myogenesis / cell-cell adhesion mediated by cadherin / catenin complex / apical junction assembly / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / brain morphogenesis / positive regulation of smoothened signaling pathway / negative regulation of protein localization to nucleus / axon regeneration / negative regulation of neuroblast proliferation / apical junction complex / smoothened signaling pathway / pore complex / establishment or maintenance of cell polarity / odontogenesis of dentin-containing tooth / regulation of postsynapse assembly / striated muscle thin filament / skeletal muscle thin filament assembly / homeostasis of number of cells / intercalated disc / neuroblast proliferation / negative regulation of extrinsic apoptotic signaling pathway in absence of ligand / stress fiber / ovarian follicle development / skeletal muscle fiber development / extrinsic apoptotic signaling pathway in absence of ligand / cell adhesion molecule binding / presynaptic active zone membrane / hippocampal mossy fiber to CA3 synapse / acrosomal vesicle / integrin-mediated signaling pathway / adherens junction / actin filament / cell motility / postsynaptic density membrane / beta-catenin binding / cerebral cortex development / 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 / response to estrogen / male gonad development / actin filament binding / cell junction / apical part of cell / intracellular protein localization / cell-cell junction / lamellipodium / actin cytoskeleton / regulation of cell population proliferation / hydrolase activity / cadherin binding / apoptotic process / negative regulation of apoptotic process / structural molecule activity / Golgi apparatus / signal transduction / ATP binding / identical protein binding / 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: 3.1 Å | |||||||||
![]() | Gong, R. / Reynolds, M.J. / Alushin, G.M. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Afadin mediates cadherin-catenin complex clustering on F-actin linked to cooperative binding and filament curvature. 著者: Rui Gong / Matthew J Reynolds / Xiaoyu Sun / Gregory M Alushin / ![]() 要旨: The E-cadherin-β-catenin-αE-catenin (cadherin-catenin) complex couples the cytoskeletons of neighboring cells at adherens junctions (AJs) to mediate force transmission across epithelia. Mechanical ...The E-cadherin-β-catenin-αE-catenin (cadherin-catenin) complex couples the cytoskeletons of neighboring cells at adherens junctions (AJs) to mediate force transmission across epithelia. Mechanical force and auxiliary binding partners converge to stabilize the cadherin-catenin complex's inherently weak binding to actin filaments (F-actin) through unclear mechanisms. Here we show that afadin's coiled-coil (CC) domain and vinculin synergistically enhance the cadherin-catenin complex's F-actin engagement. The cryo-EM structure of an E-cadherin-β-catenin-αE-catenin-vinculin-afadin-CC supra-complex bound to F-actin reveals that afadin-CC bridges adjacent αE-catenin actin-binding domains along the filament, stabilizing flexible αE-catenin segments implicated in mechanical regulation. These cooperative binding contacts promote the formation of supra-complex clusters along F-actin. Additionally, cryo-EM variability analysis links supra-complex binding along individual F-actin strands to nanoscale filament curvature, a deformation mode associated with cytoskeletal forces. Collectively, this work elucidates a mechanistic framework by which vinculin and afadin tune cadherin-catenin complex-cytoskeleton coupling to support AJ function across varying mechanical regimes. | |||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 438.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 344 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 47194MC 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 ![]() |
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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: 41875.633 Da / 分子数: 5 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() #2: タンパク質 | 分子量: 100110.078 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #3: タンパク質 | | 分子量: 26150.164 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: 化合物 | ChemComp-ADP / #5: 化合物 | ChemComp-MG / 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: FILAMENT / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: F-actin binding interface of alpha-E-catenin ABD (cadherin-catenin complex) and afadin タイプ: COMPLEX / Entity ID: #1-#3 / 由来: MULTIPLE SOURCES |
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分子量 | 値: 5.4 kDa/nm / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 8 |
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: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2800 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 61.26 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 99745 / 対称性のタイプ: POINT |