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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: 9dgu | ||||||||||||||||||||||||
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| タイトル | structure of dynactin, dynein tail with two BICDR from dynein-dynactin-BICDR on microtubules | ||||||||||||||||||||||||
要素 |
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キーワード | MOTOR PROTEIN / dynein / dynactin / BICDR / microtubule | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Golgi to secretory granule transport / : / Factors involved in megakaryocyte development and platelet production / retrograde axonal transport of mitochondrion / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs ...Golgi to secretory granule transport / : / Factors involved in megakaryocyte development and platelet production / retrograde axonal transport of mitochondrion / Regulation of actin dynamics for phagocytic cup formation / EPHB-mediated forward signaling / Adherens junctions interactions / VEGFA-VEGFR2 Pathway / Cell-extracellular matrix interactions / RHO GTPases Activate WASPs and WAVEs / MAP2K and MAPK activation / Formation of the canonical BAF (cBAF) complex / Formation of the polybromo-BAF (pBAF) complex / Formation of the embryonic stem cell BAF (esBAF) complex / Formation of the non-canonical BAF (ncBAF) complex / UCH proteinases / Gap junction degradation / Formation of annular gap junctions / RHOF GTPase cycle / Clathrin-mediated endocytosis / Regulation of CDH1 Function / Formation of the dystrophin-glycoprotein complex (DGC) / dynactin complex / centriolar subdistal appendage / positive regulation of neuromuscular junction development / centriole-centriole cohesion / Regulation of PLK1 Activity at G2/M Transition / Loss of Nlp from mitotic centrosomes / Loss of proteins required for interphase microtubule organization from the centrosome / Anchoring of the basal body to the plasma membrane / AURKA Activation by TPX2 / Recruitment of mitotic centrosome proteins and complexes / microtubule anchoring at centrosome / nuclear membrane disassembly / F-actin capping protein complex / WASH complex / ventral spinal cord development / cytoskeleton-dependent cytokinesis / retromer complex / dynein complex / microtubule plus-end / cellular response to cytochalasin B / positive regulation of microtubule nucleation / regulation of transepithelial transport / morphogenesis of a polarized epithelium / structural constituent of postsynaptic actin cytoskeleton / protein localization to adherens junction / melanosome transport / dense body / barbed-end actin filament capping / Tat protein binding / Neutrophil degranulation / postsynaptic actin cytoskeleton / coronary vasculature development / non-motile cilium assembly / regulation of cell morphogenesis / vesicle transport along microtubule / adherens junction assembly / retrograde transport, endosome to Golgi / apical protein localization / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / minus-end-directed microtubule motor activity / Recruitment of NuMA to mitotic centrosomes / microtubule associated complex / centrosome localization / dynein light intermediate chain binding / cytoplasmic dynein complex / tight junction / COPI-mediated anterograde transport / ventricular septum development / aorta development / microtubule-based movement / nuclear migration / neuromuscular process / apical junction complex / establishment of mitotic spindle orientation / neuromuscular junction development / regulation of norepinephrine uptake / transporter regulator activity / NuA4 histone acetyltransferase complex / dynein intermediate chain binding / establishment or maintenance of cell polarity / motor behavior / cell leading edge / cortical cytoskeleton / cleavage furrow / microtubule organizing center / nitric-oxide synthase binding / dynein complex binding / brush border / dynactin binding / regulation of synaptic vesicle endocytosis / kinesin binding / regulation of protein localization to plasma membrane / positive regulation of double-strand break repair via homologous recombination / intercellular bridge / stress fiber 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: 7.1 Å | ||||||||||||||||||||||||
データ登録者 | 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. #1: ジャーナル: bioRxiv / 年: 2024 タイトル: Molecular basis for the assembly of the dynein transport machinery on microtubules. 著者: Qinhui Rao / Pengxin Chai / Kai Zhang / ![]() 要旨: Cytoplasmic dynein-1, a microtubule-based motor protein, requires dynactin and an adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The role of microtubules in DDA assembly has ...Cytoplasmic dynein-1, a microtubule-based motor protein, requires dynactin and an adaptor to form the processive dynein-dynactin-adaptor (DDA) complex. The role of microtubules in DDA assembly has been elusive. Here, we reveal detailed structural insights into microtubule-mediated DDA assembly using cryo-electron microscopy. We find that an adaptor-independent dynein-dynactin complex (DD) predominantly forms on microtubules in an intrinsic 2:1 stoichiometry, induced by spontaneous parallelization of dynein upon microtubule binding. Adaptors can squeeze in and exchange within the assembled microtubule-bound DD complex, which is enabled by relative rotations between dynein and dynactin, and further facilitated by dynein light intermediate chains that assist in an adaptor 'search' mechanism. Our findings elucidate the dynamic adaptability of the dynein transport machinery, and reveal a new mode for assembly of the motile complex. | ||||||||||||||||||||||||
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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 | 9dgu.cif.gz | 2 MB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9dgu.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9dgu.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/dg/9dgu ftp://data.pdbj.org/pub/pdb/validation_reports/dg/9dgu | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 46848MC ![]() 9dgpC ![]() 9dgqC ![]() 9dgrC ![]() 9dgsC ![]() 9dgtC ![]() 9dgvC ![]() 9yncC ![]() 9yndC ![]() 9yneC ![]() 9ynfC ![]() 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
-タンパク質 , 5種, 16分子 ABCDEFGIHJabcdjq
| #1: タンパク質 | 分子量: 42670.688 Da / 分子数: 8 / 由来タイプ: 天然 / 由来: (天然) ![]() #2: タンパク質 | | 分子量: 41782.660 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() 参照: UniProt: Q6QAQ1, 加水分解酵素; 酸無水物に作用; 酸無水物に作用・細胞または細胞小器官の運動に関与 #3: タンパク質 | | 分子量: 46250.785 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() #12: タンパク質 | 分子量: 65377.035 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() 参照: UniProt: A0JNT9 #15: タンパク質 | 分子量: 54227.156 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-F-actin-capping protein subunit ... , 2種, 2分子 KL
| #4: タンパク質 | 分子量: 33059.848 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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| #5: タンパク質 | 分子量: 30669.768 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
-Dynactin subunit ... , 6種, 11分子 MNPQORUVWZY
| #6: タンパク質 | 分子量: 44704.414 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() #7: タンパク質 | 分子量: 21192.477 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #8: タンパク質 | | 分子量: 20703.910 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() #9: タンパク質 | | 分子量: 20150.533 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() #10: タンパク質 | 分子量: 142015.484 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() #11: タンパク質 | | 分子量: 52920.434 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-Cytoplasmic dynein 1 ... , 2種, 8分子 efmnghop
| #13: タンパク質 | 分子量: 532739.562 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() #14: タンパク質 | 分子量: 68567.219 Da / 分子数: 4 / 由来タイプ: 天然 / 由来: (天然) ![]() |
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-非ポリマー , 3種, 13分子 




| #16: 化合物 | ChemComp-ADP / #17: 化合物 | ChemComp-ATP / | #18: 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 | 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: Dynactin, dynein tail with two BICDR from dynein-dynactin-BICDR on microtubules タイプ: COMPLEX / Entity ID: #1-#15 / 由来: MULTIPLE SOURCES |
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| 分子量 | 値: 5 MDa / 実験値: NO |
| 由来(天然) | 生物種: ![]() |
| 緩衝液 | pH: 7.2 |
| 試料 | 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 / 最大 デフォーカス(公称値): 3000 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): 3000 nm |
| 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
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3次元再構成 | 解像度: 7.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 10576 / 対称性のタイプ: POINT |
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万見について






米国, 1件
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FIELD EMISSION GUN