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データを開く
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基本情報
登録情報 | データベース: EMDB / ID: EMD-5354 | |||||||||
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タイトル | Remodeling of actin filaments by ADF-cofilin proteins | |||||||||
![]() | This is the reconstructed volume of the actin-cofilin complex. | |||||||||
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![]() | actin / cofilin / helical polymers | |||||||||
機能・相同性 | ![]() Gap junction degradation / Formation of annular gap junctions / RHO GTPases activate IQGAPs / Adherens junctions interactions / DNA Damage Recognition in GG-NER / Clathrin-mediated endocytosis / cellular response to ether / cofilin-actin rod / positive regulation of protein localization to cell leading edge / positive regulation of establishment of cell polarity regulating cell shape ...Gap junction degradation / Formation of annular gap junctions / RHO GTPases activate IQGAPs / Adherens junctions interactions / DNA Damage Recognition in GG-NER / Clathrin-mediated endocytosis / cellular response to ether / cofilin-actin rod / positive regulation of protein localization to cell leading edge / positive regulation of establishment of cell polarity regulating cell shape / RHO GTPases Activate Formins / negative regulation of unidimensional cell growth / positive regulation of barbed-end actin filament capping / UCH proteinases / B-WICH complex positively regulates rRNA expression / neural fold formation / negative regulation of lamellipodium assembly / negative regulation of postsynaptic density organization / RHOF GTPase cycle / actin filament fragmentation / RHO GTPases Activate WASPs and WAVEs / Regulation of actin dynamics for phagocytic cup formation / positive regulation of actin filament depolymerization / positive regulation of embryonic development / modification of postsynaptic actin cytoskeleton / negative regulation of actin filament bundle assembly / positive regulation of synaptic plasticity / EPH-ephrin mediated repulsion of cells / negative regulation of actin filament depolymerization / MAP2K and MAPK activation / EPHB-mediated forward signaling / VEGFA-VEGFR2 Pathway / actin filament severing / structural constituent of postsynaptic actin cytoskeleton / dense body / negative regulation of cell motility / establishment of spindle localization / regulation of dendritic spine morphogenesis / host-mediated activation of viral process / cell projection organization / actin filament depolymerization / negative regulation of cell adhesion / RHO GTPases Activate ROCKs / negative regulation of cell size / cellular response to interleukin-6 / regulation of cell morphogenesis / negative regulation of dendritic spine maintenance / neural crest cell migration / positive regulation of cell motility / cortical actin cytoskeleton / phosphatidylinositol bisphosphate binding / cellular response to insulin-like growth factor stimulus / establishment of cell polarity / NuA4 histone acetyltransferase complex / positive regulation of dendritic spine development / mitotic cytokinesis / positive regulation of proteolysis / lamellipodium membrane / Sema3A PAK dependent Axon repulsion / cellular response to interleukin-1 / positive regulation of focal adhesion assembly / response to amino acid / postsynaptic density, intracellular component / Rho protein signal transduction / positive regulation of lamellipodium assembly / cytoskeleton organization / EPHB-mediated forward signaling / Gene and protein expression by JAK-STAT signaling after Interleukin-12 stimulation / axonogenesis / cellular response to epidermal growth factor stimulus / synaptic membrane / response to activity / actin filament / hippocampus development / filopodium / cell motility / mitochondrial membrane / Regulation of actin dynamics for phagocytic cup formation / 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 virus / ruffle membrane / nuclear matrix / cellular response to hydrogen peroxide / protein import into nucleus / actin filament binding / cell-cell junction / cellular response to tumor necrosis factor / Platelet degranulation / actin cytoskeleton / lamellipodium / growth cone / actin cytoskeleton organization / positive regulation of cell growth / vesicle / protein phosphatase binding / dendritic spine / cytoskeleton / hydrolase activity / axon / signaling receptor binding 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() ![]() | |||||||||
手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 9.0 Å | |||||||||
![]() | Galkin VE / Orlova A / Kudryashov DS / Solodukhin A / Reisler E / Schoeder GF / Egelman EH | |||||||||
![]() | ![]() タイトル: Remodeling of actin filaments by ADF/cofilin proteins. 著者: Vitold E Galkin / Albina Orlova / Dmitri S Kudryashov / Alexander Solodukhin / Emil Reisler / Gunnar F Schröder / Edward H Egelman / ![]() 要旨: Cofilin/ADF proteins play key roles in the dynamics of actin, one of the most abundant and highly conserved eukaryotic proteins. We used cryoelectron microscopy to generate a 9-Å resolution three- ...Cofilin/ADF proteins play key roles in the dynamics of actin, one of the most abundant and highly conserved eukaryotic proteins. We used cryoelectron microscopy to generate a 9-Å resolution three-dimensional reconstruction of cofilin-decorated actin filaments, the highest resolution achieved for a complex of F-actin with an actin-binding protein. We show that the cofilin-induced change in the filament twist is due to a unique conformation of the actin molecule unrelated to any previously observed state. The changes between the actin protomer in naked F-actin and in the actin-cofilin filament are greater than the conformational changes between G- and F-actin. Our results show the structural plasticity of actin, suggest that other actin-binding proteins may also induce large but different conformational changes, and show that F-actin cannot be described by a single molecular model. | |||||||||
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
-EMDBアーカイブ
マップデータ | ![]() | 3.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 9.6 KB 9.6 KB | 表示 表示 | ![]() |
画像 | ![]() | 141.7 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 344 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 343.5 KB | 表示 | |
XML形式データ | ![]() | 4.5 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 | This is the reconstructed volume of the actin-cofilin complex. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 2.5 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 : actin decorated with cofilin
全体 | 名称: actin decorated with cofilin |
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要素 |
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-超分子 #1000: actin decorated with cofilin
超分子 | 名称: actin decorated with cofilin / タイプ: sample / ID: 1000 / 集合状態: filament containing one cofilin to one actin / Number unique components: 2 |
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-分子 #1: F-Actin
分子 | 名称: F-Actin / タイプ: protein_or_peptide / ID: 1 / Name.synonym: F-Actin / 集合状態: helical polymer / 組換発現: No / データベース: NCBI |
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由来(天然) | 生物種: ![]() ![]() |
-分子 #2: cofilin-2
分子 | 名称: cofilin-2 / タイプ: protein_or_peptide / ID: 2 / Name.synonym: cofilin-2 / 集合状態: one cofilin per actin in filament / 組換発現: Yes |
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由来(天然) | 生物種: ![]() |
組換発現 | 生物種: ![]() ![]() |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | らせん対称体再構成法 |
試料の集合状態 | filament |
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試料調製
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: OTHER / 詳細: Vitrification instrument: Vitrobot |
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電子顕微鏡法
顕微鏡 | FEI TECNAI F20 |
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日付 | 2010年1月1日 |
撮影 | カテゴリ: FILM / フィルム・検出器のモデル: KODAK SO-163 FILM / デジタル化 - スキャナー: NIKON COOLSCAN / デジタル化 - サンプリング間隔: 6.35 µm / 実像数: 125 / ビット/ピクセル: 14 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.0 mm / 最大 デフォーカス(公称値): 5.3 µm / 最小 デフォーカス(公称値): 1.1 µm / 倍率(公称値): 50000 |
試料ステージ | 試料ホルダー: side entry / 試料ホルダーモデル: GATAN LIQUID NITROGEN |
実験機器 | ![]() モデル: Tecnai F20 / 画像提供: FEI Company |
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画像解析
最終 再構成 | 想定した対称性 - らせんパラメータ - Δz: 27.6 Å 想定した対称性 - らせんパラメータ - ΔΦ: 162.1 ° アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 9.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: SPIDER,IHRSR / 詳細: map calculated from 13,716 segments |
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CTF補正 | 詳細: each EM |