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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: 9ynf | ||||||||||||||||||||||||||||||
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| タイトル | Motor domain of human dynein-1 in post1 state | ||||||||||||||||||||||||||||||
要素 | Cytoplasmic dynein 1 heavy chain 1 | ||||||||||||||||||||||||||||||
キーワード | MOTOR PROTEIN / Dynein-1 | ||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of intracellular transport / regulation of metaphase plate congression / positive regulation of spindle assembly / establishment of spindle localization / retrograde axonal transport / COPI-independent Golgi-to-ER retrograde traffic / P-body assembly / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex ...positive regulation of intracellular transport / regulation of metaphase plate congression / positive regulation of spindle assembly / establishment of spindle localization / retrograde axonal transport / COPI-independent Golgi-to-ER retrograde traffic / P-body assembly / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex / nuclear migration / dynein intermediate chain binding / COPI-mediated anterograde transport / cytoplasmic microtubule / cytoplasmic microtubule organization / axon cytoplasm / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / 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 / EML4 and NUDC in mitotic spindle formation / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / AURKA Activation by TPX2 / stress granule assembly / regulation of mitotic spindle organization / Resolution of Sister Chromatid Cohesion / mitotic spindle organization / filopodium / RHO GTPases Activate Formins / HCMV Early Events / Aggrephagy / azurophil granule lumen / Separation of Sister Chromatids / Regulation of PLK1 Activity at G2/M Transition / positive regulation of cold-induced thermogenesis / cell cortex / microtubule / cell division / Neutrophil degranulation / centrosome / RNA binding / extracellular exosome / extracellular region / ATP binding / membrane / identical protein binding / 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: 3.92 Å | ||||||||||||||||||||||||||||||
データ登録者 | Yang, J. / Rao, Q. / Chai, P. / Zhang, K. | ||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nature / 年: 2026タイトル: Roles of microtubules and LIS1 in dynein transport machinery assembly. 著者: Qinhui Rao / Jun Yang / Pengxin Chai / Steven Markus / Kai Zhang / ![]() 要旨: Cytoplasmic dynein-1, a microtubule (MT)-based motor protein, requires dynactin and a coiled-coil adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The roles of MTs and dynein ...Cytoplasmic dynein-1, a microtubule (MT)-based motor protein, requires dynactin and a coiled-coil adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The roles of MTs and dynein regulator lissencephaly-1 (LIS1) in DDA assembly have remained elusive. Here we use cryo-electron microscopy to determine the structural basis of MT- and LIS1-mediated DDA assembly. We show that an adaptor-independent dynein-dynactin complex spontaneously forms on MTs with an intrinsic 2:1 stoichiometry in a highly efficient manner, driven by parallel alignment of dynein tails upon MT binding. Adaptors can wedge into and exchange within the assembled MT-bound dynein-dynactin complex; these processes are enabled by relative rotations between dynein and dynactin and facilitated by the dynein light-intermediate chains that assist the adaptor 'search' mechanism. Although LIS1 is dispensable for efficient DD(A)-MT assembly, its presence expands the conformational landscape of DD(A) assemblies on MTs. Cryo-electron microscopy reveals that LIS1 bridges dynactin p150 and dynein in both the closed Phi-like and open prepowerstroke states, stabilizing low-MT-affinity intermediates that tether dynein molecules in proximity to MTs and prime them for subsequent DD(A) assembly through alternative pathways. These findings demonstrate the dynamic adaptability of the dynein transport machinery and the coordinated roles of MTs and LIS1 in DDA assembly. | ||||||||||||||||||||||||||||||
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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 | 9ynf.cif.gz | 580 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9ynf.ent.gz | 450.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9ynf.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/yn/9ynf ftp://data.pdbj.org/pub/pdb/validation_reports/yn/9ynf | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 73176MC ![]() 9dgpC ![]() 9dgqC ![]() 9dgrC ![]() 9dgsC ![]() 9dgtC ![]() 9dguC ![]() 9dgvC ![]() 9yncC ![]() 9yndC ![]() 9yneC ![]() 9yngC ![]() 9ynhC 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 F&H 検索 |
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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
| #1: タンパク質 | 分子量: 533083.250 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト)遺伝子: DYNC1H1, DHC1, DNCH1, DNCL, DNECL, DYHC, KIAA0325 発現宿主: ![]() 参照: UniProt: Q14204 | ||||||||||
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| #2: 化合物 | | #3: 化合物 | ChemComp-ATP / | #4: 化合物 | ChemComp-ANP / | #5: 化合物 | ChemComp-MG / | 研究の焦点であるリガンドがあるか | Y | 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: PARTICLE / 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: Motor domain of human dynein-1 in post1 state / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.2 |
| 試料 | 濃度: 2 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 顕微鏡 | モデル: TFS GLACIOS |
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| 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): 45000 X / 倍率(補正後): 45000 X / 最大 デフォーカス(公称値): 2600 nm / 最小 デフォーカス(公称値): 1200 nm / Calibrated defocus min: 1200 nm / 最大 デフォーカス(補正後): 2600 nm / Cs: 2.7 mm / C2レンズ絞り径: 30 µm |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 電子線照射量: 40 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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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 | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.92 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 326895 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 精密化 | 最高解像度: 3.92 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)
米国, 1件
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FIELD EMISSION GUN