+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 2p4n | ||||||
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タイトル | Human Monomeric Kinesin (1BG2) and Bovine Tubulin (1JFF) Docked into the 9-Angstrom Cryo-EM Map of Nucleotide-Free Kinesin Complexed to the Microtubule | ||||||
要素 |
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キーワード | TRANSPORT PROTEIN (運搬体タンパク質) / Motor protein (モータータンパク質) / ATPase (ATPアーゼ) | ||||||
機能・相同性 | 機能・相同性情報 cytoplasm organization / cytolytic granule membrane / plus-end-directed vesicle transport along microtubule / anterograde neuronal dense core vesicle transport / anterograde dendritic transport of neurotransmitter receptor complex / mitocytosis / retrograde neuronal dense core vesicle transport / anterograde axonal protein transport / vesicle transport along microtubule / lysosome localization ...cytoplasm organization / cytolytic granule membrane / plus-end-directed vesicle transport along microtubule / anterograde neuronal dense core vesicle transport / anterograde dendritic transport of neurotransmitter receptor complex / mitocytosis / retrograde neuronal dense core vesicle transport / anterograde axonal protein transport / vesicle transport along microtubule / lysosome localization / positive regulation of potassium ion transport / natural killer cell mediated cytotoxicity / Kinesins / plus-end-directed microtubule motor activity / RHO GTPases activate KTN1 / stress granule disassembly / positive regulation of axon guidance / COPI-dependent Golgi-to-ER retrograde traffic / mitochondrion transport along microtubule / 繊毛 / centrosome localization / kinesin complex / synaptic vesicle transport / microtubule motor activity / microtubule-based movement / Insulin processing / centriolar satellite / Signaling by ALK fusions and activated point mutants / Nuclear events stimulated by ALK signaling in cancer / microtubule-based process / phagocytic vesicle / axon cytoplasm / MHC class II antigen presentation / dendrite cytoplasm / regulation of membrane potential / 軸索誘導 / positive regulation of synaptic transmission, GABAergic / positive regulation of protein localization to plasma membrane / 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 / structural constituent of cytoskeleton / microtubule cytoskeleton organization / cellular response to type II interferon / microtubule cytoskeleton / mitotic cell cycle / nervous system development / microtubule binding / vesicle / 微小管 / hydrolase activity / cadherin binding / protein heterodimerization activity / GTPase activity / protein-containing complex binding / GTP binding / perinuclear region of cytoplasm / ATP hydrolysis activity / ミトコンドリア / ATP binding / 生体膜 / identical protein binding / metal ion binding / 細胞質基質 / 細胞質 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) Bos taurus (ウシ) | ||||||
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: 9 Å | ||||||
データ登録者 | Sindelar, C.V. / Downing, K.H. | ||||||
引用 | ジャーナル: J Cell Biol / 年: 2007 タイトル: The beginning of kinesin's force-generating cycle visualized at 9-A resolution. 著者: Charles V Sindelar / Kenneth H Downing / 要旨: We have used cryo-electron microscopy of kinesin-decorated microtubules to resolve the structure of the motor protein kinesin's crucial nucleotide response elements, switch I and the switch II helix, ...We have used cryo-electron microscopy of kinesin-decorated microtubules to resolve the structure of the motor protein kinesin's crucial nucleotide response elements, switch I and the switch II helix, in kinesin's poorly understood nucleotide-free state. Both of the switch elements undergo conformational change relative to the microtubule-free state. The changes in switch I suggest a role for it in "ejecting" adenosine diphosphate when kinesin initially binds to the microtubule. The switch II helix has an N-terminal extension, apparently stabilized by conserved microtubule contacts, implying a microtubule activation mechanism that could convey the state of the bound nucleotide to kinesin's putative force-delivering element (the "neck linker"). In deriving this structure, we have adapted an image-processing technique, single-particle reconstruction, for analyzing decorated microtubules. The resulting reconstruction visualizes the asymmetric seam present in native, 13-protofilament microtubules, and this method will provide an avenue to higher-resolution characterization of a variety of microtubule- binding proteins, as well as the microtubule itself. | ||||||
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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 2p4n.cif.gz | 249.4 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb2p4n.ent.gz | 193.1 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 2p4n.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
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/p4/2p4n ftp://data.pdbj.org/pub/pdb/validation_reports/p4/2p4n | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-タンパク質 , 3種, 3分子 KAB
#1: タンパク質 | 分子量: 36405.070 Da / 分子数: 1 / 断片: K349 Construct of Human Kinesin / 由来タイプ: 天然 詳細: The actual construct used in the EM studies is a mutant protein (called cys-lite) 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P33176*PLUS |
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#2: タンパク質 | 分子量: 50121.266 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: P02550*PLUS |
#3: タンパク質 | 分子量: 49907.770 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: Q6B856*PLUS |
-非ポリマー , 6種, 7分子
#4: 化合物 | #5: 化合物 | ChemComp-ADP / | #6: 化合物 | ChemComp-ZN / | #7: 化合物 | ChemComp-GTP / | #8: 化合物 | ChemComp-GDP / | #9: 化合物 | ChemComp-TA1 / | |
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-詳細
配列の詳細 | THE SEQUENCE OF KINESIN (CHAIN K) IN THE SAMPLE INCLUDED MUTATIONS.THE CONSTRUCT IS KNOWN AS CYS- ...THE SEQUENCE OF KINESIN (CHAIN K) IN THE SAMPLE INCLUDED MUTATIONS.THE CONSTRUCT IS KNOWN AS CYS-LITE. MODEL CRYSTAL STRUCTURE FOR FITTING THE MAP WAS THE NATIVE SEQUENCE. IN THE CASE OF TUBULIN A AND B (CHAINS A AND B), THE SEQUENCE IN THE SAMPLE WAS DERIVED FROM COW, WHILE THE MODEL USED FOR FITTING THE MAP WAS A PIG PROTEIN. |
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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 |
-試料調製
構成要素 |
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緩衝液 | pH: 6.8 | |||||||||||||||||||||||||
試料 | 包埋: YES / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||
試料支持 | 詳細: 300 mesh copper grid | |||||||||||||||||||||||||
急速凍結 | 装置: HOMEMADE PLUNGER / 凍結剤: ETHANE / 詳細: ETHANE |
-電子顕微鏡撮影
顕微鏡 | モデル: JEOL 4000 |
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電子銃 | 電子線源: LAB6 / 加速電圧: 400 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELDBright-field microscopy / 倍率(公称値): 60000 X / 最大 デフォーカス(公称値): 1500 nm / 最小 デフォーカス(公称値): 700 nm / Cs: 4.1 mm |
試料ホルダ | 温度: 103.15 K / 傾斜角・最大: 0 ° / 傾斜角・最小: 0 ° |
撮影 | 電子線照射量: 16 e/Å2 / フィルム・検出器のモデル: KODAK SO-163 FILM |
-解析
EMソフトウェア |
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CTF補正 | 詳細: CTF correction was integrated into the back projection process with a customized C program | |||||||||||||||||||||
3次元再構成 | 手法: Back projection with integrated CTF correction / 解像度: 9 Å / 粒子像の数: 150000 / ピクセルサイズ(公称値): 1 Å / ピクセルサイズ(実測値): 0.98 Å 倍率補正: The magnification was calibrated by assuming a microtubule dimer spacing of 80.0 Angstroms. 詳細: Single-particle analysis was employed. / 対称性のタイプ: HELICAL | |||||||||||||||||||||
原子モデル構築 | 空間: RECIPROCAL | |||||||||||||||||||||
原子モデル構築 |
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精密化ステップ | サイクル: LAST
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