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基本情報
登録情報 | データベース: PDB / ID: 6i2i | ||||||||||||
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タイトル | Refined 13pf Hela Cell Tubulin microtubule (EML4-NTD decorated) | ||||||||||||
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![]() | STRUCTURAL PROTEIN / Microtubule / Tubulin / Hela / EML | ||||||||||||
機能・相同性 | ![]() odontoblast differentiation / Post-chaperonin tubulin folding pathway / Cilium Assembly / cytoskeleton-dependent intracellular transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Carboxyterminal post-translational modifications of tubulin / Intraflagellar transport / Sealing of the nuclear envelope (NE) by ESCRT-III / Formation of tubulin folding intermediates by CCT/TriC / Gap junction assembly ...odontoblast differentiation / Post-chaperonin tubulin folding pathway / Cilium Assembly / cytoskeleton-dependent intracellular transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Carboxyterminal post-translational modifications of tubulin / Intraflagellar transport / Sealing of the nuclear envelope (NE) by ESCRT-III / Formation of tubulin folding intermediates by CCT/TriC / Gap junction assembly / GTPase activating protein binding / Kinesins / COPI-independent Golgi-to-ER retrograde traffic / Assembly and cell surface presentation of NMDA receptors / COPI-dependent Golgi-to-ER retrograde traffic / natural killer cell mediated cytotoxicity / regulation of synapse organization / nuclear envelope lumen / MHC class I protein binding / Recycling pathway of L1 / RHOH GTPase cycle / RHO GTPases activate IQGAPs / microtubule-based process / Hedgehog 'off' state / intercellular bridge / Activation of AMPK downstream of NMDARs / spindle assembly / cytoplasmic microtubule / COPI-mediated anterograde transport / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Recruitment of mitotic centrosome proteins and complexes / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / cellular response to interleukin-4 / Anchoring of the basal body to the plasma membrane / Resolution of Sister Chromatid Cohesion / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / AURKA Activation by TPX2 / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / PKR-mediated signaling / structural constituent of cytoskeleton / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / HCMV Early Events / Aggrephagy / mitotic spindle / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / azurophil granule lumen / Regulation of PLK1 Activity at G2/M Transition / mitotic cell cycle / double-stranded RNA binding / microtubule cytoskeleton / cell body / 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 / Potential therapeutics for SARS / microtubule / cytoskeleton / cilium / membrane raft / protein domain specific binding / cell division / GTPase activity / ubiquitin protein ligase binding / Neutrophil degranulation / protein-containing complex binding / GTP binding / structural molecule activity / protein-containing complex / extracellular exosome / extracellular region / metal ion binding / nucleus / cytosol / 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: 3.6 Å | ||||||||||||
![]() | Atherton, J.M. / Moores, C.A. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Mitotic phosphorylation by NEK6 and NEK7 reduces the microtubule affinity of EML4 to promote chromosome congression. 著者: Rozita Adib / Jessica M Montgomery / Joseph Atherton / Laura O'Regan / Mark W Richards / Kees R Straatman / Daniel Roth / Anne Straube / Richard Bayliss / Carolyn A Moores / Andrew M Fry / ![]() 要旨: EML4 is a microtubule-associated protein that promotes microtubule stability. We investigated its regulation across the cell cycle and found that EML4 was distributed as punctate foci along the ...EML4 is a microtubule-associated protein that promotes microtubule stability. We investigated its regulation across the cell cycle and found that EML4 was distributed as punctate foci along the microtubule lattice in interphase but exhibited reduced association with spindle microtubules in mitosis. Microtubule sedimentation and cryo-electron microscopy with 3D reconstruction revealed that the basic N-terminal domain of EML4 mediated its binding to the acidic C-terminal tails of α- and β-tubulin on the microtubule surface. The mitotic kinases NEK6 and NEK7 phosphorylated the EML4 N-terminal domain at Ser and Ser in vitro, and depletion of these kinases in cells led to increased EML4 binding to microtubules in mitosis. An S144A-S146A double mutant not only bound inappropriately to mitotic microtubules but also increased their stability and interfered with chromosome congression. In addition, constitutive activation of NEK6 or NEK7 reduced the association of EML4 with interphase microtubules. Together, these data support a model in which NEK6- and NEK7-dependent phosphorylation promotes the dissociation of EML4 from microtubules in mitosis in a manner that is required for efficient chromosome congression. | ||||||||||||
履歴 |
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 166.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 127.7 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 985.8 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 997.6 KB | 表示 | |
XML形式データ | ![]() | 29.4 KB | 表示 | |
CIF形式データ | ![]() | 43.2 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
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 2種, 2分子 AB
#1: タンパク質 | 分子量: 50204.445 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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#2: タンパク質 | 分子量: 49717.629 Da / 分子数: 1 / 由来タイプ: 天然 / 詳細: Beta1-tubulin / 由来: (天然) ![]() |
-非ポリマー , 4種, 5分子 






#3: 化合物 | ChemComp-GTP / | ||||
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#4: 化合物 | #5: 化合物 | ChemComp-G2P / | #6: 化合物 | ChemComp-TA1 / | |
-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: Alpha and beta-tubulin from Hela Cell (modelled) decorated with EML4-NTD (not modelled) タイプ: COMPLEX 詳細: EML4-NTD density at low resolution due to flexibility, thus was not modelled Entity ID: #1-#2 / 由来: NATURAL |
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分子量 | 値: 110 kDa/nm / 実験値: NO |
由来(天然) | 生物種: ![]() |
緩衝液 | pH: 6.8 詳細: 25mM PIPES, 1.5mM MgCl2, 1mM EGTA, 1mM DTT, 30mM NaCl,1mM GMPCPP |
緩衝液成分 | 名称: BRB25 |
試料 | 濃度: 0.5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: Microtubules formed from Hela cell tubulin |
急速凍結 | 装置: FEI VITROBOT MARK IV / 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 |
撮影 | 電子線照射量: 48 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 詳細: Dose-weighted sums used in reconstruction |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.11.1_2575: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 19542 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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