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基本情報
登録情報 | データベース: PDB / ID: 7zcw | ||||||
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タイトル | Cryo-EM structure of GMPCPP-microtubules in complex with VASH2-SVBP | ||||||
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![]() | PROTEIN BINDING / Microtubule / Enzyme / Complex / Detyrosination | ||||||
機能・相同性 | ![]() cell-cell fusion / regulation of metallopeptidase activity / tubulinyl-Tyr carboxypeptidase / tubulin-tyrosine carboxypeptidase / syncytium formation by plasma membrane fusion / 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 ...cell-cell fusion / regulation of metallopeptidase activity / tubulinyl-Tyr carboxypeptidase / tubulin-tyrosine carboxypeptidase / syncytium formation by plasma membrane fusion / 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 / peptidase activator activity / Intraflagellar transport / Sealing of the nuclear envelope (NE) by ESCRT-III / Formation of tubulin folding intermediates by CCT/TriC / embryonic brain development / Gap junction assembly / Prefoldin mediated transfer of substrate to CCT/TriC / COPI-independent Golgi-to-ER retrograde traffic / Kinesins / positive regulation of axon guidance / Assembly and cell surface presentation of NMDA receptors / labyrinthine layer blood vessel development / negative regulation of endothelial cell migration / COPI-dependent Golgi-to-ER retrograde traffic / axon development / Recycling pathway of L1 / protein secretion / RHOH GTPase cycle / regulation of angiogenesis / RHO GTPases activate IQGAPs / microtubule-based process / intercellular bridge / Hedgehog 'off' state / Activation of AMPK downstream of NMDARs / cytoplasmic microtubule / COPI-mediated anterograde transport / metallocarboxypeptidase activity / positive regulation of endothelial cell proliferation / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / negative regulation of protein ubiquitination / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / Resolution of Sister Chromatid Cohesion / cellular response to interleukin-4 / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / modulation of chemical synaptic transmission / PKR-mediated signaling / Schaffer collateral - CA1 synapse / cerebral cortex development / structural constituent of cytoskeleton / microtubule cytoskeleton organization / HCMV Early Events / neuron migration / positive regulation of angiogenesis / Aggrephagy / mitotic spindle / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / apical part of cell / mitotic cell cycle / double-stranded RNA binding / actin binding / microtubule cytoskeleton / 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 / microtubule / cytoskeleton / cilium / protein heterodimerization activity / cell division / GTPase activity / ubiquitin protein ligase binding / GTP binding / structural molecule activity / proteolysis / 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 | ||||||
![]() | Choi, S.R. / Blum, T. / Steinmetz, M.O. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: VASH1-SVBP and VASH2-SVBP generate different detyrosination profiles on microtubules. 著者: Sacnicte Ramirez-Rios / Sung Ryul Choi / Chadni Sanyal / Thorsten B Blum / Christophe Bosc / Fatma Krichen / Eric Denarier / Jean-Marc Soleilhac / Béatrice Blot / Carsten Janke / Virginie ...著者: Sacnicte Ramirez-Rios / Sung Ryul Choi / Chadni Sanyal / Thorsten B Blum / Christophe Bosc / Fatma Krichen / Eric Denarier / Jean-Marc Soleilhac / Béatrice Blot / Carsten Janke / Virginie Stoppin-Mellet / Maria M Magiera / Isabelle Arnal / Michel O Steinmetz / Marie-Jo Moutin / ![]() ![]() 要旨: The detyrosination/tyrosination cycle of α-tubulin is critical for proper cell functioning. VASH1-SVBP and VASH2-SVBP are ubiquitous enzymes involved in microtubule detyrosination, whose mode of ...The detyrosination/tyrosination cycle of α-tubulin is critical for proper cell functioning. VASH1-SVBP and VASH2-SVBP are ubiquitous enzymes involved in microtubule detyrosination, whose mode of action is little known. Here, we show in reconstituted systems and cells that VASH1-SVBP and VASH2-SVBP drive the global and local detyrosination of microtubules, respectively. We solved the cryo-electron microscopy structure of VASH2-SVBP bound to microtubules, revealing a different microtubule-binding configuration of its central catalytic region compared to VASH1-SVBP. We show that the divergent mode of detyrosination between the two enzymes is correlated with the microtubule-binding properties of their disordered N- and C-terminal regions. Specifically, the N-terminal region is responsible for a significantly longer residence time of VASH2-SVBP on microtubules compared to VASH1-SVBP. We suggest that this VASH region is critical for microtubule detachment and diffusion of VASH-SVBP enzymes on lattices. Our results suggest a mechanism by which VASH1-SVBP and VASH2-SVBP could generate distinct microtubule subpopulations and confined areas of detyrosinated lattices to drive various microtubule-based cellular functions. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 937.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 779.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 14634MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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 , 4種, 8分子 AEBFGHCD
#1: タンパク質 | 分子量: 50204.445 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #2: タンパク質 | 分子量: 49907.770 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() #3: タンパク質 | | 分子量: 40488.914 Da / 分子数: 1 / Mutation: C158A / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() #4: タンパク質 | | 分子量: 8780.000 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: Recombinant C-terminal his6-tag / 由来: (組換発現) ![]() ![]() ![]() |
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-非ポリマー , 3種, 12分子 




#5: 化合物 | #6: 化合物 | ChemComp-MG / #7: 化合物 | ChemComp-G2P / |
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-詳細
研究の焦点であるリガンドがあるか | N |
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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: HELICAL ARRAY / 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: VASH2-SVBP complex bound to the microtubule / タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT | ||||||||||||||||||||
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分子量 | 値: 0.38 MDa / 実験値: NO | ||||||||||||||||||||
由来(天然) | 生物種: ![]() | ||||||||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() | ||||||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: Mixture of VASH2-SVBP and microtubules | ||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R2/1 | ||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 298 K |
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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 / 最大 デフォーカス(公称値): 2200 nm / 最小 デフォーカス(公称値): 600 nm |
撮影 | 平均露光時間: 0.2 sec. / 電子線照射量: 1.4 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) 撮影したグリッド数: 1 / 実像数: 3345 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 153041 | ||||||||||||||||||||||||||||||||||||||||||||
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: 96922 / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 54.76 / プロトコル: RIGID BODY FIT | ||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | 3D fitting-ID: 1 / Source name: PDB / タイプ: experimental model
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