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Suppressor screening reveals common kleisin–hinge interaction in condensin and cohesin, but different modes of regulation
https://oist.repo.nii.ac.jp/records/1044
https://oist.repo.nii.ac.jp/records/1044fff0f79b-2ec7-42d5-9ea9-92179bc3d2b0
名前 / ファイル | ライセンス | アクション |
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Xu-2019-Suppressor screening reveals common kl (2.2 MB)
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-07-30 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Suppressor screening reveals common kleisin–hinge interaction in condensin and cohesin, but different modes of regulation | |||||
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 | |||||
著者(英) |
Xu, Xingya
× Xu, Xingya× Yanagida, Mitsuhiro |
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書誌情報 |
en : Proceedings of the National Academy of Sciences 巻 116, 号 22, p. 10889-10898, 発行日 2019-05-09 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Cohesin and condensin play fundamental roles in sister chromatid cohesion and chromosome segregation, respectively. Both consist of heterodimeric structural maintenance of chromosomes (SMC) subunits, which possess a head (containing ATPase) and a hinge, intervened by long coiled coils. Non-SMC subunits (Cnd1, Cnd2, and Cnd3 for condensin; Rad21, Psc3, and Mis4 for cohesin) bind to the SMC heads. Here, we report a large number of spontaneous extragenic suppressors for fission yeast condensin and cohesin mutants, and their sites were determined by whole-genome sequencing. Mutants of condensin's non-SMC subunits were rescued by impairing the SUMOylation pathway. Indeed, SUMOylation of Cnd2, Cnd3, and Cut3 occurs in midmitosis, and Cnd3 K870 SUMOylation functionally opposes Cnd subunits. In contrast, cohesin mutants rad21 and psc3 were rescued by loss of the RNA elimination pathway (Erh1, Mmi1, and Red1), and loader mutant mis4 was rescued by loss of Hrp1-mediated chromatin remodeling. In addition, distinct regulations were discovered for condensin and cohesin hinge mutants. Mutations in the N-terminal helix bundle [containing a helix-turn-helix (HTH) motif] of kleisin subunits (Cnd2 and Rad21) rescue virtually identical hinge interface mutations in cohesin and condensin, respectively. These mutations may regulate kleisin's interaction with the coiled coil at the SMC head, thereby revealing a common, but previously unknown, suppression mechanism between the hinge and the kleisin N domain, which is required for successful chromosome segregation. We propose that in both condensin and cohesin, the head (or kleisin) and hinge may interact and collaboratively regulate the resulting coiled coils to hold and release chromosomal DNAs. | |||||
出版者 | ||||||
出版者 | National Academy of Sciences | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0027-8424 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1091-6490 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/31072933 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1073/pnas.1902699116 | |||||
権利 | ||||||
権利情報 | © 2019 the Author(s). | |||||
情報源 | ||||||
関連名称 | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.pnas.org/content/116/22/10889 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |