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Involvement of DNA-dependent protein kinase in normal cell cycle progression through mitosis
https://repo.qst.go.jp/records/46214
https://repo.qst.go.jp/records/462144aaa04f5-f52f-42a4-8e17-ca800c188a0f
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-11-22 | |||||
タイトル | ||||||
タイトル | Involvement of DNA-dependent protein kinase in normal cell cycle progression through mitosis | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Lee, Kyung-Jong
× Lee, Kyung-Jong× Yajima, Hirohiko× et.al× 矢島 浩彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The catalytic subunit of DNA-dependent protein kinase (DNA-PKcs) plays an important role in DNA double-strand break (DSB) repair as the underlying mechanism of the non- homologous end joining pathway. When DSBs occur, DNA- PKcs is rapidly phosphorylated at both the Thr-2609 and Ser- 2056 residues, and such phosphorylations are critical for DSB repair. In this study we report that, in addition to responding to DSBs, DNA-PKcs is activated and phosphorylated in normal cell cycle progression through mitosis. Mitotic induction of DNA- PKcs phosphorylation is closely associated with the spindle apparatus at centrosomes and kinetochores. Furthermore, depletion of DNA-PKcs protein levels or inhibition of DNA- PKcs kinase activity results in the delay of mitotic transition because of chromosome misalignment. These results demon- strate for the first time that DNA-PKcs, in addition to its role in DSB repair, is a critical regulator of mitosis and could modulate microtubule dynamics in chromosome segregation. | |||||
書誌情報 |
The Journal of Biological Chemistry 巻 286, 号 14, p. 12796-12802, 発行日 2011-04 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0021-9258 |