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基本情報
登録情報 | データベース: PDB / ID: 9hq4 | ||||||
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タイトル | TTLL11 bound to microtubule | ||||||
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![]() | LIGASE / TTLL11 / polyglutamylase / tubulin / microtubule | ||||||
機能・相同性 | ![]() tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / microtubule severing / 合成酵素; C-N結合を形成; 酸-D-アミノ酸リガーゼ(ペプチド合成) / odontoblast differentiation / Post-chaperonin tubulin folding pathway / Cilium Assembly / cytoskeleton-dependent intracellular transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane ...tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / microtubule severing / 合成酵素; C-N結合を形成; 酸-D-アミノ酸リガーゼ(ペプチド合成) / odontoblast differentiation / Post-chaperonin tubulin folding pathway / Cilium Assembly / cytoskeleton-dependent intracellular transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / haloalkane dehalogenase / haloalkane dehalogenase activity / 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 / Kinesins / GTPase activating protein binding / Assembly and cell surface presentation of NMDA receptors / COPI-independent Golgi-to-ER retrograde traffic / COPI-dependent Golgi-to-ER retrograde traffic / natural killer cell mediated cytotoxicity / regulation of synapse organization / nuclear envelope lumen / Recycling pathway of L1 / MHC class I protein binding / RHOH GTPase cycle / RHO GTPases activate IQGAPs / microtubule-based process / intercellular bridge / Hedgehog 'off' state / spindle assembly / Activation of AMPK downstream of NMDARs / 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 / tubulin binding / MHC class II antigen presentation / cellular response to interleukin-4 / Recruitment of NuMA to mitotic centrosomes / Anchoring of the basal body to the plasma membrane / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / Resolution of Sister Chromatid Cohesion / AURKA Activation by TPX2 / Translocation of SLC2A4 (GLUT4) to the plasma membrane / RHO GTPases Activate Formins / PKR-mediated signaling / structural constituent of cytoskeleton / protein modification process / Aggrephagy / response to toxic substance / microtubule cytoskeleton organization / cytoplasmic ribonucleoprotein granule / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / HCMV Early Events / Regulation of PLK1 Activity at G2/M Transition / mitotic spindle / azurophil granule lumen / 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 / ciliary basal body / membrane raft / protein domain specific binding / cell division / GTPase activity / ubiquitin protein ligase binding / Neutrophil degranulation / GTP binding / protein-containing complex binding / structural molecule activity / protein-containing complex / extracellular exosome / extracellular region / ATP binding / metal ion binding / nucleus / membrane / 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: 3.28 Å | ||||||
![]() | Barinka, C. / Campbell, J. / Desfosses, A. / Gutsche, I. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Mechanistic insights into TTLL11 polyglutamylase-mediated primary tubulin chain elongation. 著者: Jana Campbell / Miroslava Vosahlikova / Samar Ismail / Margareta Volnikova / Lucia Motlova / Julia Kudlacova / Kseniya Ustinova / Ivan Snajdr / Zora Novakova / Miroslav Basta / Irina Gutsche ...著者: Jana Campbell / Miroslava Vosahlikova / Samar Ismail / Margareta Volnikova / Lucia Motlova / Julia Kudlacova / Kseniya Ustinova / Ivan Snajdr / Zora Novakova / Miroslav Basta / Irina Gutsche / Marie-Jo Moutin / Ambroise Desfosses / Cyril Barinka / ![]() ![]() ![]() 要旨: Microtubules (MTs) undergo diverse posttranslational modifications that regulate their structural and functional properties. Among these, polyglutamylation-a dominant and conserved modification ...Microtubules (MTs) undergo diverse posttranslational modifications that regulate their structural and functional properties. Among these, polyglutamylation-a dominant and conserved modification targeting unstructured tubulin C-terminal tails-plays a pivotal role in defining the tubulin code. Here, we describe a mechanism by which tubulin tyrosine ligase-like 11 (TTLL11) expands and diversifies the code. Cryo-electron microscopy revealed a unique bipartite MT recognition strategy wherein TTLL11 binding and catalytic domains engage adjacent MT protofilaments. Biochemical and cellular assays identified previously uncharacterized polyglutamylation patterns, showing that TTLL11 directly extends the primary polypeptide chains of α- and β-tubulin in vitro, challenging the prevailing paradigms emphasizing lateral branching. Moreover, cell-based and in vivo data suggest a cross-talk between polyglutamylation and the detyrosination/tyrosination cycle likely linked to the TTLL11-mediated elongation of the primary α-tubulin chain. These findings unveil an unrecognized layer of complexity within the tubulin code and offer mechanistic insights into the molecular basis of functional specialization of MT cytoskeleton. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 463.8 KB | 表示 | ![]() |
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PDB形式 | ![]() | 365.4 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 | ![]() | 1.8 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.8 MB | 表示 | |
XML形式データ | ![]() | 84.2 KB | 表示 | |
CIF形式データ | ![]() | 123.8 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 52338MC 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 , 3種, 5分子 ACBDE
#1: タンパク質 | 分子量: 50204.445 Da / 分子数: 2 / 由来タイプ: 天然 詳細: Native tubulin isolated from HEK 293T cells, unaligned regions are intrinsicly disordered 由来: (天然) ![]() #2: タンパク質 | 分子量: 49717.629 Da / 分子数: 2 / 由来タイプ: 天然 詳細: The C-terminal part of tubulin is intrinsicaly disordered thus not visible in the structure. 由来: (天然) ![]() #3: タンパク質 | | 分子量: 111410.188 Da / 分子数: 1 / Mutation: E441G / 由来タイプ: 組換発現 詳細: The original protein contains N-terminal Halo tag on a flexible linker so it is not visible in the map or included in the model. TTLL11 containes several instriscally disordered regions that ...詳細: The original protein contains N-terminal Halo tag on a flexible linker so it is not visible in the map or included in the model. TTLL11 containes several instriscally disordered regions that are left out from the model. 由来: (組換発現) ![]() ![]() 遺伝子: TTLL11, C9orf20 / 細胞株 (発現宿主): HEK293T / 発現宿主: ![]() 参照: UniProt: P0A3G4, UniProt: Q8NHH1, 合成酵素; C-N結合を形成; 酸-D-アミノ酸リガーゼ(ペプチド合成) |
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-非ポリマー , 3種, 10分子 




#4: 化合物 | ChemComp-G2P / #5: 化合物 | ChemComp-MG / #6: 化合物 | |
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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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Has protein modification | Y |
-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: Complex of TTLL11 and two tubulin dimers / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7 詳細: 40 mM Tris-HCl, pH 7.0, 1 mM TCEP, 1 mM MgCl2, 5 % glycerol |
試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
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: LEICA EM GP / 凍結剤: ETHANE / 湿度: 90 % |
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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: TFS 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): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 30 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.28 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 239587 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT | ||||||||||||||||||||||||
原子モデル構築 | Accession code: AF-Q8NHH1-F1-v4 / Source name: AlphaFold / タイプ: in silico model | ||||||||||||||||||||||||
拘束条件 |
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