+検索条件
-Structure paper
| タイトル | Activation and regulation of the dynein-dynactin-NuMA complex. |
|---|---|
| ジャーナル・号・ページ | Nat Chem Biol, Year 2026 |
| 掲載日 | 2026年3月16日 |
著者 | Merve Aslan / Ennio A d'Amico / Nathan H Cho / Aryan Taheri / Juan M Perez-Bertoldi / Yuanchang Zhao / Xinyue Zhong / Madeline Blaauw / Andrew P Carter / Sophie Dumont / Ahmet Yildiz / ![]() |
| PubMed 要旨 | During cell division, the nuclear mitotic apparatus protein (NuMA) orchestrates the focusing of microtubule minus-ends in spindle poles and cortical force generation on astral microtubules by ...During cell division, the nuclear mitotic apparatus protein (NuMA) orchestrates the focusing of microtubule minus-ends in spindle poles and cortical force generation on astral microtubules by interacting with dynein motors, microtubules and other cellular factors. Here we used in vitro reconstitution, cryo-electron microscopy and live-cell imaging to understand the mechanism and regulation of NuMA. We determined the structure of the processive dynein-dynactin-NuMA complex (DDN) and showed that the NuMA N terminus drives dynein motility in vitro and facilitates dynein-mediated transport in live cells. The C terminus of NuMA directly binds and suppresses the dynamics of the microtubule minus-end. Full-length NuMA is autoinhibited for its interactions with dynein and microtubules, whereas mitotically phosphorylated NuMA activates dynein in vitro and interphase cells. Together with dynein, activated full-length NuMA focuses microtubule minus-ends into aster-like structures. These results provide critical insights into the activation of NuMA and dynein for their mitotic functions. |
リンク | Nat Chem Biol / PubMed:41840068 |
| 手法 | EM (単粒子) |
| 解像度 | 6.53 - 6.78 Å |
| 構造データ | EMDB-52171, PDB-9hhl: ![]() EMDB-52172: Dynactin pointed end in complex with NuMA |
| 化合物 | ![]() ChemComp-ADP: ![]() ChemComp-ATP: ![]() ChemComp-ZN: |
| 由来 |
|
キーワード | MOTOR PROTEIN / transport |
ムービー
コントローラー
構造ビューア
万見文献について



著者

リンク






homo sapiens (ヒト)
キーワード