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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 8t42 | ||||||
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| タイトル | Model of TTLL6 MTBH1-2 bound to microtubule | ||||||
要素 |
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キーワード | LIGASE / tubulin post-translational modifications / microtubules / TTLL | ||||||
| 機能・相同性 | 機能・相同性情報positive regulation of cilium movement / protein-glutamic acid ligase activity / tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / protein polyglutamylation / Carboxyterminal post-translational modifications of tubulin / 9+0 non-motile cilium / microtubule severing / regulation of cilium beat frequency involved in ciliary motility ...positive regulation of cilium movement / protein-glutamic acid ligase activity / tubulin-glutamic acid ligase activity / protein-glutamic acid ligase activity, initiating / protein-glutamic acid ligase activity, elongating / protein polyglutamylation / Carboxyterminal post-translational modifications of tubulin / 9+0 non-motile cilium / microtubule severing / regulation of cilium beat frequency involved in ciliary motility / 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 / Carboxyterminal post-translational modifications of tubulin / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Sealing of the nuclear envelope (NE) by ESCRT-III / Intraflagellar transport / Formation of tubulin folding intermediates by CCT/TriC / Gap junction assembly / microtubule bundle formation / Kinesins / Assembly and cell surface presentation of NMDA receptors / COPI-independent Golgi-to-ER retrograde traffic / GTPase activating protein binding / COPI-dependent Golgi-to-ER retrograde traffic / natural killer cell mediated cytotoxicity / nuclear envelope lumen / regulation of synapse organization / Recycling pathway of L1 / RHOH GTPase cycle / MHC class I protein binding / axoneme / microtubule-based process / RHO GTPases activate IQGAPs / intercellular bridge / Hedgehog 'off' state / COPI-mediated anterograde transport / cytoplasmic microtubule / Activation of AMPK downstream of NMDARs / spindle assembly / 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 / Anchoring of the basal body to the plasma membrane / Mitotic Prometaphase / cellular response to interleukin-4 / EML4 and NUDC in mitotic spindle formation / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / AURKA Activation by TPX2 / Resolution of Sister Chromatid Cohesion / Translocation of SLC2A4 (GLUT4) to the plasma membrane / tubulin binding / RHO GTPases Activate Formins / PKR-mediated signaling / structural constituent of cytoskeleton / microtubule cytoskeleton organization / HCMV Early Events / cytoplasmic ribonucleoprotein granule / Aggrephagy / The role of GTSE1 in G2/M progression after G2 checkpoint / mitotic spindle / azurophil granule lumen / Separation of Sister Chromatids / Regulation of PLK1 Activity at G2/M Transition / mitotic cell cycle / double-stranded RNA binding / microtubule cytoskeleton / cell body / Potential therapeutics for SARS / 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 / cytoskeleton / microtubule / cilium / ciliary basal body / membrane raft / protein domain specific binding / cell division / GTPase activity / Neutrophil degranulation / ubiquitin protein ligase binding / GTP binding / protein-containing complex binding / structural molecule activity / protein-containing complex / extracellular exosome / extracellular region / ATP binding / metal ion binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能 | ||||||
| 生物種 | ![]() Homo sapiens (ヒト) | ||||||
| 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 | ||||||
データ登録者 | Mahalingan, K.K. / Grotjahn, D. / Li, Y. / Lander, G.C. / Zehr, E.A. / Roll-Mecak, A. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Chem Biol / 年: 2024タイトル: Structural basis for α-tubulin-specific and modification state-dependent glutamylation. 著者: Kishore K Mahalingan / Danielle A Grotjahn / Yan Li / Gabriel C Lander / Elena A Zehr / Antonina Roll-Mecak / ![]() 要旨: Microtubules have spatiotemporally complex posttranslational modification patterns. Tubulin tyrosine ligase-like (TTLL) enzymes introduce the most prevalent modifications on α-tubulin and β-tubulin. ...Microtubules have spatiotemporally complex posttranslational modification patterns. Tubulin tyrosine ligase-like (TTLL) enzymes introduce the most prevalent modifications on α-tubulin and β-tubulin. How TTLLs specialize for specific substrate recognition and ultimately modification-pattern generation is largely unknown. TTLL6, a glutamylase implicated in ciliopathies, preferentially modifies tubulin α-tails in microtubules. Cryo-electron microscopy, kinetic analysis and single-molecule biochemistry reveal an unprecedented quadrivalent recognition that ensures simultaneous readout of microtubule geometry and posttranslational modification status. By binding to a β-tubulin subunit, TTLL6 modifies the α-tail of the longitudinally adjacent tubulin dimer. Spanning two tubulin dimers along and across protofilaments (PFs) ensures fidelity of recognition of both the α-tail and the microtubule. Moreover, TTLL6 reads out and is stimulated by glutamylation of the β-tail of the laterally adjacent tubulin dimer, mediating crosstalk between α-tail and β-tail. This positive feedback loop can generate localized microtubule glutamylation patterns. Our work uncovers general principles that generate tubulin chemical and topographic complexity. | ||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 8t42.cif.gz | 322.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8t42.ent.gz | 254.6 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8t42.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/t4/8t42 ftp://data.pdbj.org/pub/pdb/validation_reports/t4/8t42 | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 41018MC ![]() 8u3zC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
| 実験データセット #1 | データ参照: 10.6019/EMPIAR-11798 / データの種類: EMPIAR詳細: Cryo-EM micrographs of human alpha1B/BetaI+BetaIVb microtubules bound to GMPCPP decorated with TTLL6 Metadata reference: 10.6019/EMPIAR-11798 |
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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 AFBEN
| #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: a-tubulin from tsA201 cell line / 由来: (天然) Homo sapiens (ヒト) / Cell: Epithelial-like / 細胞株: tsA201 / 器官: kidney / 組織: kidney / 参照: UniProt: P68363#2: タンパク質 | 分子量: 49717.629 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / Cell: Epithelial-like / 細胞株: tsA201 / 器官: kidney / 組織: kidney / 参照: UniProt: P07437#3: タンパク質 | | 分子量: 59145.621 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 参照: UniProt: A4Q9E8, 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, 8分子 




| #4: 化合物 | | #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 | Y |
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| Has protein modification | N |
-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 |
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| 分子量 | 値: 0.3 MDa / 実験値: YES | ||||||||||||||||||||||||||||||
| 由来(天然) |
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| 由来(組換発現) | 生物種: ![]() | ||||||||||||||||||||||||||||||
| 緩衝液 | pH: 7 | ||||||||||||||||||||||||||||||
| 緩衝液成分 |
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| 試料 | 濃度: 0.1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: TTLL6 decoration of microtubule was heterogenous | ||||||||||||||||||||||||||||||
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 303 K 詳細: The sample was blotted with Whatman #5 blotting paper on both sides of the grid for 3 s with a blot offset of -1 using a Vitrobot Mark IV (Thermo Fisher Scientific) with a chamber set to 30C ...詳細: The sample was blotted with Whatman #5 blotting paper on both sides of the grid for 3 s with a blot offset of -1 using a Vitrobot Mark IV (Thermo Fisher Scientific) with a chamber set to 30C at 100% humidity and subsequently plunged into liquid ethane. |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TALOS ARCTICA |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 36000 X / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm / アライメント法: COMA FREE |
| 撮影 | 平均露光時間: 9.75 sec. / 電子線照射量: 42 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) 実像数: 2771 |
| 画像スキャン | 動画フレーム数/画像: 39 / 利用したフレーム数/画像: 1-39 |
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解析
| EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||||||||||||||||||
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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: 59044 詳細: Due to highly heterogeneous TTLL6 decoration of microtubules microtubules were manually selected. 59044 overlapping segments with a box size of 568 pixels were extracted every 82 A | ||||||||||||||||||||||||||||||||||||||||
| 対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||
| 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: 392289 / アルゴリズム: FOURIER SPACE / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL / Target criteria: Cross-correlation | ||||||||||||||||||||||||||||||||||||||||
| 原子モデル構築 | 3D fitting-ID: 1
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| 拘束条件 |
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万見について





Homo sapiens (ヒト)
米国, 1件
引用




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FIELD EMISSION GUN

