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Kinesin-6 Klp9 plays motor-dependent and -independent roles in collaboration with Kinesin-5 Cut7 and the microtubule crosslinker Ase1 in fission yeast

https://hiroshima.repo.nii.ac.jp/records/2008815
https://hiroshima.repo.nii.ac.jp/records/2008815
f9c8cc93-a339-4de7-919d-45584a8834d8
名前 / ファイル ライセンス アクション
SciRep_9_7336.pdf SciRep_9_7336.pdf (3.5 MB)
Item type デフォルトアイテムタイプ_(フル)(1)
公開日 2023-03-18
タイトル
タイトル Kinesin-6 Klp9 plays motor-dependent and -independent roles in collaboration with Kinesin-5 Cut7 and the microtubule crosslinker Ase1 in fission yeast
言語 en
作成者 Yukawa, Masashi

× Yukawa, Masashi

en Yukawa, Masashi

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Okazaki, Masaki

× Okazaki, Masaki

en Okazaki, Masaki

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Teratani, Yasuhiro

× Teratani, Yasuhiro

en Teratani, Yasuhiro

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Furuta, Ken'ya

× Furuta, Ken'ya

en Furuta, Ken'ya

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Toda, Takashi

× Toda, Takashi

en Toda, Takashi

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利情報
権利情報 © The Author(s) 2019. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
内容記述
内容記述 Bipolar mitotic spindles play a critical part in accurate chromosome segregation. During late mitosis, spindle microtubules undergo drastic elongation in a process called anaphase B. Two kinesin motors, Kinesin-5 and Kinesin-6, are thought to generate outward forces to drive spindle elongation, and the microtubule crosslinker Ase1/PRC1 maintains structural integrity of antiparallel microtubules. However, how these three proteins orchestrate this process remains unknown. Here we explore the functional interplay among fission yeast Kinesin-5/Cut7, Kinesin-6/Klp9 and Ase1. Using total internal reflection fluorescence microscopy, we show that Klp9 forms homotetramers and that Klp9 is a processive plus end-directed motor. klp9Δase1Δ is synthetically lethal. Surprisingly, this lethality is not ascribable to the defective motor activity of Klp9; instead, it is dependent upon a nuclear localisation signal and coiled coil domains within the non-motor region. We isolated a cut7 mutant (cut7-122) that displays temperature sensitivity only in the absence of Klp9. Interestingly, cut7-122 alone is impaired in spindle elongation during anaphase B, and furthermore, cut7-122klp9Δ double mutants exhibit additive defects. We propose that Klp9 plays dual roles during anaphase B; one is motor-dependent that collaborates with Cut7 in force generation, while the other is motor-independent that ensures structural integrity of spindle microtubules together with Ase1.
言語 en
内容記述
内容記述タイプ Other
内容記述 This work was supported by the Japan Society for the Promotion of Science (JSPS) (KAKENHI Scientific Research (A) 16H02503 to T.T., a Challenging Exploratory Research grant 16K14672 to T.T., Scientific Research (C) 16K07694 to M.Y., Scientific Research (C) 15KT0155 to K.F. and Grantin-Aid for Scientific Research on Innovative Areas 18H05420 to K.F.), the Naito Foundation (T.T.) and the Uehara Memorial Foundation (T.T.).
出版者
出版者 Nature Research
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
関連情報
識別子タイプ DOI
関連識別子 10.1038/s41598-019-43774-7
関連情報
識別子タイプ DOI
関連識別子 https://doi.org/10.1038/s41598-019-43774-7
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 2045-2322
開始ページ
開始ページ 7336
書誌情報 Scientific Reports
Scientific Reports

巻 9, p. 7336, 発行日 2019-05-14
旧ID 48222
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