+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-6188 | |||||||||
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タイトル | High-resolution structures of kinesin on microtubules provide a basis for nucleotide-gated force generation | |||||||||
マップデータ | Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket. | |||||||||
試料 |
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機能・相同性 | 機能・相同性情報 plus-end-directed vesicle transport along microtubule / cytoplasm organization / cytolytic granule membrane / mitocytosis / anterograde dendritic transport of neurotransmitter receptor complex / anterograde neuronal dense core vesicle transport / anterograde axonal protein transport / retrograde neuronal dense core vesicle transport / vesicle transport along microtubule / lysosome localization ...plus-end-directed vesicle transport along microtubule / cytoplasm organization / cytolytic granule membrane / mitocytosis / anterograde dendritic transport of neurotransmitter receptor complex / anterograde neuronal dense core vesicle transport / anterograde axonal protein transport / retrograde neuronal dense core vesicle transport / vesicle transport along microtubule / lysosome localization / positive regulation of potassium ion transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Separation of Sister Chromatids / Kinesins / RHO GTPases activate KTN1 / plus-end-directed microtubule motor activity / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / stress granule disassembly / Recruitment of NuMA to mitotic centrosomes / COPI-mediated anterograde transport / COPI-dependent Golgi-to-ER retrograde traffic / mitochondrion transport along microtubule / centrosome localization / microtubule motor activity / ciliary rootlet / kinesin complex / natural killer cell mediated cytotoxicity / synaptic vesicle transport / Insulin processing / microtubule-based movement / microtubule-based process / centriolar satellite / phagocytic vesicle / axon cytoplasm / MHC class II antigen presentation / dendrite cytoplasm / regulation of membrane potential / axon guidance / positive regulation of synaptic transmission, GABAergic / positive regulation of protein localization to plasma membrane / cellular response to type II interferon / structural constituent of cytoskeleton / microtubule cytoskeleton organization / microtubule cytoskeleton / Signaling by ALK fusions and activated point mutants / mitotic cell cycle / microtubule binding / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / vesicle / microtubule / cadherin binding / GTPase activity / protein-containing complex binding / GTP binding / perinuclear region of cytoplasm / ATP hydrolysis activity / mitochondrion / ATP binding / identical protein binding / membrane / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / Sus scrofa (ブタ) | |||||||||
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: 5.0 Å | |||||||||
データ登録者 | Shang ZG / Zhou KF / Xu C / Csencsits R / Cochran JC / Sindelar CV | |||||||||
引用 | ジャーナル: Elife / 年: 2014 タイトル: High-resolution structures of kinesin on microtubules provide a basis for nucleotide-gated force-generation. 著者: Zhiguo Shang / Kaifeng Zhou / Chen Xu / Roseann Csencsits / Jared C Cochran / Charles V Sindelar / 要旨: Microtubule-based transport by the kinesin motors, powered by ATP hydrolysis, is essential for a wide range of vital processes in eukaryotes. We obtained insight into this process by developing ...Microtubule-based transport by the kinesin motors, powered by ATP hydrolysis, is essential for a wide range of vital processes in eukaryotes. We obtained insight into this process by developing atomic models for no-nucleotide and ATP states of the monomeric kinesin motor domain on microtubules from cryo-EM reconstructions at 5-6 Å resolution. By comparing these models with existing X-ray structures of ADP-bound kinesin, we infer a mechanistic scheme in which microtubule attachment, mediated by a universally conserved 'linchpin' residue in kinesin (N255), triggers a clamshell opening of the nucleotide cleft and accompanying release of ADP. Binding of ATP re-closes the cleft in a manner that tightly couples to translocation of cargo, via kinesin's 'neck linker' element. These structural transitions are reminiscent of the analogous nucleotide-exchange steps in the myosin and F1-ATPase motors and inform how the two heads of a kinesin dimer 'gate' each other to promote coordinated stepping along microtubules. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
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_6188.map.gz | 12.1 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-6188-v30.xml emd-6188.xml | 12.5 KB 12.5 KB | 表示 表示 | EMDBヘッダ |
画像 | 400_6188.gif 80_6188.gif | 86.1 KB 5.3 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-6188 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-6188 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_6188_validation.pdf.gz | 330.1 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_6188_full_validation.pdf.gz | 329.7 KB | 表示 | |
XML形式データ | emd_6188_validation.xml.gz | 4.2 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6188 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-6188 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「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_6188.map.gz / 形式: CCP4 / 大きさ: 34.7 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 これらの図は立方格子座標系で作成されたものです | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 2.097 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
-試料の構成要素
-全体 : Microtubule decorated with monomeric human kinesin (K349 construc...
全体 | 名称: Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket. |
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要素 |
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-超分子 #1000: Microtubule decorated with monomeric human kinesin (K349 construc...
超分子 | 名称: Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket. タイプ: sample / ID: 1000 / 詳細: Microtubule decorated with monomeric human kinesin 集合状態: One monomer of kinesin binds to one heterodimer of tubulin Number unique components: 2 |
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分子量 | 理論値: 135 KDa |
-分子 #1: monomeric kinesin-1A
分子 | 名称: monomeric kinesin-1A / タイプ: protein_or_peptide / ID: 1 / 詳細: K349 / コピー数: 1 / 集合状態: monomer / 組換発現: Yes |
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由来(天然) | 生物種: Homo sapiens (ヒト) / 別称: human |
分子量 | 理論値: 38 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) / 組換株: BL21(DE3) / 組換プラスミド: pHB40p |
配列 | UniProtKB: Kinesin-1 heavy chain |
-分子 #2: tubulin
分子 | 名称: tubulin / タイプ: protein_or_peptide / ID: 2 / 集合状態: heterodimer / 組換発現: No / データベース: NCBI |
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由来(天然) | 生物種: Sus scrofa (ブタ) / 別称: pig |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | らせん対称体再構成法 |
試料の集合状態 | filament |
-試料調製
緩衝液 | pH: 6.8 / 詳細: 25 mM PIPES, 25 mM NaCl, 2 mM MgCl2, 1 mM EGTA |
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グリッド | 詳細: 300 mesh copper grid with homemade holey carbon |
凍結 | 凍結剤: ETHANE / 装置: HOMEMADE PLUNGER 手法: No glow discharged applied; after sample application to grid, liquid was mostly 'wicked' away by edgewise application of filter paper. Subsequently, blotting and plunge freezing were ...手法: No glow discharged applied; after sample application to grid, liquid was mostly 'wicked' away by edgewise application of filter paper. Subsequently, blotting and plunge freezing were performed with a ~0.5 second delay after blotting but prior to plunging. |
-電子顕微鏡法
顕微鏡 | FEI TITAN |
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詳細 | 4K x 4K counting mode was used; 24 frames total were collected. |
日付 | 2013年6月2日 |
撮影 | カテゴリ: CCD フィルム・検出器のモデル: GATAN ULTRASCAN 4000 (4k x 4k) 実像数: 51 / 平均電子線量: 15 e/Å2 詳細: Each image was collected as a stack of 24 movie frames. |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 倍率(補正後): 23859.4 / 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): 2.5 µm / 最小 デフォーカス(公称値): 1.0 µm |
試料ステージ | 試料ホルダーモデル: GATAN LIQUID NITROGEN |
-画像解析
詳細 | Initial alignment was done using customized SPIDER scripts. Reconstruction and subsequent refinement were done by FREALIGN. |
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最終 再構成 | 想定した対称性 - らせんパラメータ - Δz: 9.455 Å 想定した対称性 - らせんパラメータ - ΔΦ: 25.71 ° 想定した対称性 - らせんパラメータ - 軸対称性: C1 (非対称) アルゴリズム: OTHER / 解像度のタイプ: BY AUTHOR / 解像度: 5.0 Å / 解像度の算出法: OTHER / ソフトウェア - 名称: SPIDER, FREALIGN 詳細: Approximately 33,600 asymmetric units were averaged in the final reconstruction. |
CTF補正 | 詳細: done within FREALIGN |
-原子モデル構築 1
初期モデル | PDB ID: Chain - #0 - Chain ID: K / Chain - #1 - Chain ID: A / Chain - #2 - Chain ID: B |
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ソフトウェア | 名称: MDFF |
詳細 | MDFF was performed using explicit solvation. Side chains were removed from the MDFF target potential. Following several equilibration steps, the relative strength of the EM map potential (GSCALE term) was slowly increased from 0 to 1 over the course of 10 nanoseconds. The t = 1.2 ns time point was selected to represent the final fitted model, based on the approximate convergence of the RMSD from the starting structure. |
精密化 | 空間: REAL / プロトコル: FLEXIBLE FIT 当てはまり具合の基準: RMSD from the starting structure was monitored for convergence |
得られたモデル | PDB-3j8y: |