Outer Dynein Arm-Shulin complex - extended Shulin region (Tetrahymena thermophila)
マップデータ
Main map of extended Shulin region map (resampled on a full-length ODA-Shulin structure from a smaller subset of particles using EMDA). -202 angstrom sharpened map.
ジャーナル: Science / 年: 2021 タイトル: Shulin packages axonemal outer dynein arms for ciliary targeting. 著者: Girish R Mali / Ferdos Abid Ali / Clinton K Lau / Farida Begum / Jérôme Boulanger / Jonathan D Howe / Zhuo A Chen / Juri Rappsilber / Mark Skehel / Andrew P Carter / 要旨: The main force generators in eukaryotic cilia and flagella are axonemal outer dynein arms (ODAs). During ciliogenesis, these ~1.8-megadalton complexes are assembled in the cytoplasm and targeted to ...The main force generators in eukaryotic cilia and flagella are axonemal outer dynein arms (ODAs). During ciliogenesis, these ~1.8-megadalton complexes are assembled in the cytoplasm and targeted to cilia by an unknown mechanism. Here, we used the ciliate to identify two factors (Q22YU3 and Q22MS1) that bind ODAs in the cytoplasm and are required for ODA delivery to cilia. Q22YU3, which we named Shulin, locked the ODA motor domains into a closed conformation and inhibited motor activity. Cryo-electron microscopy revealed how Shulin stabilized this compact form of ODAs by binding to the dynein tails. Our findings provide a molecular explanation for how newly assembled dyneins are packaged for delivery to the cilia.
ダウンロード / ファイル: emd_11580.map.gz / 形式: CCP4 / 大きさ: 347.6 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
注釈
Main map of extended Shulin region map (resampled on a full-length ODA-Shulin structure from a smaller subset of particles using EMDA). -202 angstrom sharpened map.