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基本情報
登録情報 | データベース: EMDB / ID: EMD-6290 | |||||||||
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タイトル | Negative stain reconstruction of bovine dynactin complex | |||||||||
![]() | Negative stain reconstruction of bovine dynactin complex | |||||||||
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![]() | dynactin / actin-related proteins / dynein | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / ネガティブ染色法 / 解像度: 24.0 Å | |||||||||
![]() | Chowdhury S / Ketcham SA / Schroer TA / Lander GC | |||||||||
![]() | ![]() タイトル: Structural organization of the dynein-dynactin complex bound to microtubules. 著者: Saikat Chowdhury / Stephanie A Ketcham / Trina A Schroer / Gabriel C Lander / ![]() 要旨: Cytoplasmic dynein associates with dynactin to drive cargo movement on microtubules, but the structure of the dynein-dynactin complex is unknown. Using electron microscopy, we determined the ...Cytoplasmic dynein associates with dynactin to drive cargo movement on microtubules, but the structure of the dynein-dynactin complex is unknown. Using electron microscopy, we determined the organization of native bovine dynein, dynactin and the dynein-dynactin-microtubule quaternary complex. In the microtubule-bound complex, the dynein motor domains are positioned for processive unidirectional movement, and the cargo-binding domains of both dynein and dynactin are accessible. | |||||||||
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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マップデータ | ![]() | 576 KB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 20 KB 20 KB | 表示 表示 | ![]() |
画像 | ![]() | 270.6 KB | ||
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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マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Negative stain reconstruction of bovine dynactin 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: 4.1 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 : Bovine dynactin complex
+超分子 #1000: Bovine dynactin complex
+分子 #1: p150Glued
+分子 #2: p50
+分子 #3: p24
+分子 #4: Arp1
+分子 #5: Actin
+分子 #6: Arp11
+分子 #7: p62
+分子 #8: p25
+分子 #9: p27
+分子 #10: CapZ alpha
+分子 #11: CapZ beta
-実験情報
-構造解析
手法 | ネガティブ染色法 |
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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 | 0.05 mg/mL |
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緩衝液 | pH: 7.2 / 詳細: 35 mM Tris, 5 mM MgSO4, 150 mM KCl, 1mM TCEP |
染色 | タイプ: NEGATIVE 詳細: 4 uL of sample was applied to a freshly plasma-cleaned thin carbon surface that was pre-treated with 0.1% w/v poly-L-lysine hydrobromide. After removing excess protein, negative staining was ...詳細: 4 uL of sample was applied to a freshly plasma-cleaned thin carbon surface that was pre-treated with 0.1% w/v poly-L-lysine hydrobromide. After removing excess protein, negative staining was performed with 2% w/v uranyl formate solution. |
グリッド | 詳細: 400 mesh Cu-Rh Maxtaform grid with a thin continuous carbon film on top |
凍結 | 凍結剤: NONE / 装置: OTHER |
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電子顕微鏡法
顕微鏡 | FEI TECNAI SPIRIT |
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温度 | 最低: 294 K / 最高: 297 K / 平均: 295 K |
アライメント法 | Legacy - 非点収差: Objective astigmatism was corrected using a quadrupole stigmator at 52,000 times magnification. |
日付 | 2013年5月1日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: TVIPS TEMCAM-F416 (4k x 4k) 実像数: 1978 / 平均電子線量: 20 e/Å2 詳細: Data were collected using Leginon automated image acquisition software. |
電子線 | 加速電圧: 120 kV / 電子線源: LAB6 |
電子光学系 | 倍率(補正後): 52000 / 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.20 mm / 最大 デフォーカス(公称値): 1.5 µm / 最小 デフォーカス(公称値): 0.3 µm / 倍率(公称値): 52000 |
試料ステージ | 試料ホルダー: Room temperature holder / 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC |
実験機器 | ![]() モデル: Tecnai Spirit / 画像提供: FEI Company |
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画像解析
詳細 | Processing leading up to 3D reconstruction was performed using the Appion package. Particles were selected from micrographs using an automated template-based particle picker. The stack was subjected to five iterations of iterative 2D alignment and classification using multivariate statistical analysis (MSA) and multi-reference alignment (MRA). The clean particle stack was subsequently subjected to 3D refinement by iterative projection matching using EMAN2 and SPARX libraries. |
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CTF補正 | 詳細: Phase flipping of whole micrograph |
最終 再構成 | アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 24.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: EMAN2, SPARX 詳細: Processing leading up to 3D reconstruction was performed using the Appion package. Particles were selected from micrographs using an automated template-based particle picker. The stack was ...詳細: Processing leading up to 3D reconstruction was performed using the Appion package. Particles were selected from micrographs using an automated template-based particle picker. The stack was subjected to five iterations of iterative 2D alignment and classification using multivariate statistical analysis (MSA) and multi-reference alignment (MRA). The clean particle stack was subsequently subjected to 3D refinement by iterative projection matching using EMAN2 and SPARX libraries. 使用した粒子像数: 46734 |
最終 角度割当 | 詳細: EMAN2: az 90 degrees, alt 90 degrees, phi 90 degrees |