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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: 9mfw | ||||||||||||||||||||||||||||||
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| タイトル | Motor domain with ADP AAA1 and ADP AAA3 from yeast full-length dynein-1 in 0.1 mM ATP condition | ||||||||||||||||||||||||||||||
要素 | Dynein heavy chain, cytoplasmic | ||||||||||||||||||||||||||||||
キーワード | MOTOR PROTEIN / dynein | ||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報karyogamy / nuclear migration along microtubule / astral microtubule / establishment of mitotic spindle localization / spindle pole body / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex / nuclear migration / establishment of mitotic spindle orientation ...karyogamy / nuclear migration along microtubule / astral microtubule / establishment of mitotic spindle localization / spindle pole body / minus-end-directed microtubule motor activity / dynein light intermediate chain binding / cytoplasmic dynein complex / nuclear migration / establishment of mitotic spindle orientation / dynein intermediate chain binding / mitotic sister chromatid segregation / cytoplasmic microtubule / cytoplasmic microtubule organization / Neutrophil degranulation / mitotic spindle organization / cell cortex / ATP binding / 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: 4.1 Å | ||||||||||||||||||||||||||||||
データ登録者 | Geohring, I.C. / Chai, P. / Iyer, B.R. | ||||||||||||||||||||||||||||||
| 資金援助 | 米国, 2件
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引用 | ジャーナル: Nat Chem Biol / 年: 2026タイトル: A nucleotide code governs Lis1's ability to relieve dynein autoinhibition. 著者: Indigo C Geohring / Pengxin Chai / Bharat R Iyer / William D Ton / Jun Yang / Amy H Ide / Sydney C George / Jaiveer S Bagri / Samuel V Baird / Kai Zhang / Steven M Markus / ![]() 要旨: Dynein-1 is a microtubule motor that transports numerous cytoplasmic cargoes. Activation of motility requires it first overcome an autoinhibited state before its assembly with dynactin and a cargo ...Dynein-1 is a microtubule motor that transports numerous cytoplasmic cargoes. Activation of motility requires it first overcome an autoinhibited state before its assembly with dynactin and a cargo adaptor. Studies suggest that Lis1 may relieve dynein's autoinhibited state, although evidence for this is lacking. We first determined the rules governing dynein-Lis1 binding, revealing that their binding affinity is regulated by the nucleotide-bound states of each of three nucleotide-binding pockets within dynein. We also found that distinct nucleotide 'codes' coordinate their binding stoichiometry by impacting binding affinity at two different sites within the dynein motor domain. Electron microscopy revealed that a 1 dynein:1 Lis1 complex directly promotes an uninhibited conformational state of dynein, whereas a 1:2 complex resembles the autoinhibited state. Cryo-electron microscopy revealed that the structural basis for Lis1 opening dynein relies on interactions with the linker domain. Our work reveals the biochemical basis by which Lis1 relieves dynein autoinhibition. #1: ジャーナル: bioRxiv / 年: 2025 タイトル: A nucleotide code governs Lis1's ability to relieve dynein autoinhibition. 著者: Indigo C Geohring / Pengxin Chai / Bharat R Iyer / William D Ton / Jun Yang / Amy H Ide / Sydney C George / Jaiveer S Bagri / Samuel V Baird / Kai Zhang / Steven M Markus 要旨: Dynein-1 is a microtubule motor responsible for the transport of cytoplasmic cargoes. Activation of motility requires it first overcome an autoinhibited state prior to its assembly with dynactin and ...Dynein-1 is a microtubule motor responsible for the transport of cytoplasmic cargoes. Activation of motility requires it first overcome an autoinhibited state prior to its assembly with dynactin and a cargo adaptor. Studies suggest that Lis1 may relieve dynein's autoinhibited state. However, evidence for this mechanism is lacking. We first set out to determine the rules governing dynein-Lis1 binding, which reveals that their binding affinity is regulated by the nucleotide-bound states of each of three nucleotide-binding pockets within the dynein motor domain. We also find that distinct nucleotide 'codes' coordinate dynein-Lis1 binding stoichiometry by impacting binding affinity at two different sites within the dynein motor domain. Electron microscopy reveals that a 1 Lis1:1 dynein complex directly promotes an open, uninhibited conformational state of dynein, whereas a 2:1 complex resembles the autoinhibited state. Cryo-EM analysis reveals the structural basis for Lis1 opening dynein relies on interactions with the linker domain. | ||||||||||||||||||||||||||||||
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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 | 9mfw.cif.gz | 498.5 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9mfw.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9mfw.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/mf/9mfw ftp://data.pdbj.org/pub/pdb/validation_reports/mf/9mfw | HTTPS FTP |
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-関連構造データ
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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: 471918.750 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: DYN1, DHC1, YKR054C 発現宿主: ![]() 参照: UniProt: P36022 | ||||||
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| #2: 化合物 | | #3: 化合物 | ChemComp-ATP / | 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: yeast full-length dynein-1 complex / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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| 分子量 | 値: 1.2 MDa / 実験値: YES |
| 由来(天然) | 生物種: ![]() |
| 由来(組換発現) | 生物種: ![]() |
| 緩衝液 | pH: 7.4 |
| 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): 2500 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): 2500 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 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: 4.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 53499 / アルゴリズム: BACK PROJECTION / クラス平均像の数: 1 / 対称性のタイプ: POINT |
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万見について






米国, 2件
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FIELD EMISSION GUN