Contribution of chromatin remodeling complexes to the spatial positioning of DNA damage region and to the genome integrity
Project/Area Number |
25850242
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Applied molecular and cellular biology
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Research Institution | Tohoku University |
Principal Investigator |
OMA Yukako 東北大学, 農学研究科, JSPS特別研究員(RPD) (20443997)
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Project Period (FY) |
2014-02-01 – 2019-03-31
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Project Status |
Completed (Fiscal Year 2018)
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Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
|
Keywords | クロマチン構造変換複合体 / DNA損傷修復 / 姉妹染色分体間接着 / クロマチン / クロマチン核内空間配置 / DNA二重鎖切断 / 染色体核内配置 / コヒージョン / クロマチン核内配置 |
Outline of Final Research Achievements |
DNA double-strand breaks (DSBs) are the most serious type of DNA damage. It has been shown that DNA damage-induced sister chromatid cohesion facilitates homologous recombination repair (HR) at DSB proximal regions. We found that the damage induced-cohesion was impaired in yeast mutants defected in nuclear pore complex (NPC) or in the DSB relocation to NPC. We also observed that damage-induced cohesion is impaired in yeast cells in which the association of SUMO ligase with NPC is abolished. We also showed the possible involvement of cohesin in this machinery. These results, we propose a model that the DSB relocation to NPC promotes the cohesin SUMOylation by SUMO ligase associated with NPC. This machineryis supposed to contribute to the maintenance of genome stability through facilitating HR of DSBs.
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Academic Significance and Societal Importance of the Research Achievements |
本研究では、DNA 修復の実験材料として最も広く用いられている出芽酵母を用いて解析を行ったが、出芽酵母とヒトのクロマチン構造変換複合体の機能は保存されている。そのため、本研究でのDNA損傷領域の核内配置におけるクロマチン構造変換複合体の関与の解析は、核膜タンパク質の変異によって生じる早老症などの核膜病の原因や治療などの分野にも大きく貢献できる
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Report
(6 results)
Research Products
(37 results)
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[Journal Article] Distinct roles of ATM and ATR in the regulation of ARP8 phosphorylation to prevent chromosome translocations2018
Author(s)
Sun, J., Shi, L., Kinomura, A., Fukuto, A., Horikoshi, Y., Oma, Y., Harata, M., Ikura, M., Ikura, T., Kanaar, R., Tashiro, S
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Journal Title
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] DNA binding properties of the actin-related protein Arp8 and its role in DNA repair.2014
Author(s)
Osakabe, A., Takahashi, Y., Murakami, H., Otawa, K., Tachiwana, H., Oma, Y., Hitoshi Nishijima, H., Shibahara, K., Kurumizaka, H., Harata, M.
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Journal Title
PLoS One
Volume: 9
Issue: 10
Pages: e108354-e108354
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] SWR1 and INO80 chromatin remodelers contribute to DNA double-strand break perinuclear anchorage site choice2014
Author(s)
Horigome, C., Oma, Y., Konishi, T., Schmid, R., Marcomini, I., Hauer, M.H., Dion, V., Harata, M., and Gasser, S.M.
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Journal Title
Mol Cell
Volume: 55
Issue: 4
Pages: 626-639
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Roles of actin family proteins in the functional organizaion of chromatin and the nucleus2015
Author(s)
Oma, Y., Takahashi, Y., Murakami, H., Horigome, C., Gasser, S.M., Osakabe, A., Kurumizaka, H., Harata, M.
Organizer
Understanding the genome III - G60 Symposium
Place of Presentation
Hotel Prealpina (Switzerland, Chexbres)
Year and Date
2015-03-20
Related Report
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[Presentation] Role of actin family proteins in the functional organization of chromatin and the nucleus2014
Author(s)
Yamazaki, S., Yamamoto, K., Oma, Y., Hozak, P., Gasser, S. and Harata, M.
Organizer
The 4D Nucleome 2014
Place of Presentation
安芸グランドホテル(広島県廿日市)
Year and Date
2014-12-17 – 2014-12-20
Related Report
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[Presentation] Roles of actin family proteins in chromatin and nuclear organizaion for DNA repair2014
Author(s)
Oma, Y., Takahashi, Y., Murakami, H., Horigome, C., Gasser, S., Osakabe, A., Kurumizaka, H. and Harata, H
Organizer
The 9th 3R (replication, recombination and repair) symposium
Place of Presentation
御殿場高原時之栖(静岡県御殿場市)
Year and Date
2014-11-17 – 2014-11-21
Related Report
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