2011 Fiscal Year Final Research Report
Studies on novel molecular mechanisms that regulate repair of genomic DNA damage caused by environmental stresses
Project/Area Number |
20241013
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Risk sciences of radiation/Chemicals
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Research Institution | Kobe University |
Principal Investigator |
SUGASAWA Kaoru 神戸大学, 自然科学系先端融合研究環バイオシグナル研究センター, 教授 (70202124)
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Co-Investigator(Renkei-kenkyūsha) |
NISHI Ryotaro 神戸大学, 自然科学系先端融合研究環バイオシグナル研究センター, 助教 (80446525)
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Project Period (FY) |
2008 – 2011
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Keywords | ヌクレオチド除去修復 / XPC / UV-DDB / ユビキチン化 / SUMO化 / プロテアソーム / 紫外線 |
Research Abstract |
This study has been aimed to elucidate novel molecular mechanisms involved in spatio-temporal regulation of mammalian nucleotide excision repair(NER), focusing on post-translational modifications(ubiquitylation and sumoylation) of the damage recognition proteins, XPC and DDB2. Concerning the UV-induced reversible ubiquitylation of XPC, knockdown of the identified deubiquitylation factor was found to result in accumulation of ubiquitylated XPC, which significantly compromised recruitment of XPC to damaged DNA sites. We also succeeded in reconstitution of in vitro sumoylation of XPC and identification of the modification sites. The cells stably expressing the non-sumoylated mutant XPC exhibited retardation of NER and impaired induction of XPC ubiquitylation after UV irradiation, possibly because the functional interaction between XPC and DDB2 may be mediated by SUMO. Finally, target sites for DDB2 self-ubiquitylation by the CRL4^<DDB2> ubiquitin ligase were identified, suggesting the possibility that DDB2 ubiquitylation may have distinct roles, protein degradation and dissociation from damaged DNA, depending on the modification sites.
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Research Products
(42 results)
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[Journal Article] NBS1 recruits RAD18 via a RAD6-like domain and regulates Pol h-dependent translesion DNA synthesis2011
Author(s)
Yanagihara, H., Kobayashi, J., Tateishi, S., Kato, A., Matsuura, S., Tauchi, H., Yamada, K., Takezawa, J., Sugasawa, K., Masutani, C., Hanaoka, F., Weemaes, C. M., Mori, T., Zou, L., and Komatsu, K.
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Journal Title
Mol. Cell
Volume: 43
Pages: 788-797
Peer Reviewed
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[Journal Article] The molecular basis of CRL4^<DDB2/CSA> ubiquitin ligase architecture2011
Author(s)
Fischer, E. S., Scrima, A., Bohm, K., Matsumoto, S., Lingaraju, G. M., Faty, M., Yasuda, T., Cavadini, S., Wakasugi, M., Hanaoka, F., Iwai, S., Gut, H., Sugasawa, K., and Thoma, N. H.
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Journal Title
targeting, and activation. Cell
Volume: 147
Pages: 1024-1039
Peer Reviewed
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[Journal Article] Fluorescent probes for the analysis of DNA strand scission in base excision repair2010
Author(s)
Matsumoto, N., Toga, T., Hayashi, R., Sugasawa, K., Katayanagi, K., Ide, H., Kuraoka, I., and Iwai, S.
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Journal Title
Nucleic Acids Res
Volume: 38
Pages: e101
Peer Reviewed
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[Journal Article] Stimulation of DNA glycosylase activities by XPC protein complex : roles of protein-protein interactions2010
Author(s)
Shimizu, Y., Uchimura, Y., Dohmae, N., Saitoh, H., Hanaoka, F., and Sugasawa, K.
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Journal Title
J. Nucleic Acids 2010
Pages: 805698
Peer Reviewed
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[Journal Article] An EF-hands protein centrin-1 is an EGTA-sensitive SUMO-interacting protein in mouse testis2010
Author(s)
Tanaka, N., Goto, M., Kawasaki, A., Sasano, T., Eto, K., Nishi, R., Sugasawa, K., Abe, S., and Saitoh, H.
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Journal Title
Cell Biochem. Funct
Volume: 28
Pages: 604-612
Peer Reviewed
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[Journal Article] UV-DDB-dependent regulation of nucleotide excision repair kinetics in living cells2009
Author(s)
Nishi, R., Alekseev, S., Dinant, C., Hoogstraten, D., Houtsmuller, B. A., Hoeijmakers, J. H. J., Vermeulen, W., Hanaoka, F., and Sugasawa, K.
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Journal Title
DNA Repair
Volume: 8
Pages: 767-776
Peer Reviewed
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[Journal Article] Fluorescence correlation spectroscopy of the binding of nucleotide excision repair protein XPChHr23B with DNA substrates2008
Author(s)
Roche, Y., Zhang, D., Segers-Nolten, G. M., Vermeulen, W., Wyman, C., Sugasawa, K., Hoeijmakers, J., and Otto, C.
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Journal Title
J. Fluoresc
Volume: 18
Pages: 987-995
Peer Reviewed
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[Presentation] Functional analysis of the CRL4^<DDB2> E3 ligase in mammalian nucleotide excision repair2011
Author(s)
Matsumoto, S., Yasuda, T., Dohmae, N., Fischer, E. S., Thoma, N. H., Nishi, R., Hanaoka, F., and Sugasawa, K.
Organizer
第34回日本分子生物学会年会
Place of Presentation
横浜
Year and Date
20111213-16
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[Presentation] Functional analysis of the N-terminal domain of the DNA damage recognition protein DDB22010
Author(s)
Matsumoto, S., Yasuda, T., Dohmae, N., Murakami, K., Nishi, R., Hanaoka, F., and Sugasawa, K.
Organizer
第33回日本分子生物学会年会・第83回日本生化学会大会合同大会(BMB2010)
Place of Presentation
神戸
Year and Date
20101207-10
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[Presentation] Roles for centrin-2 in DNA damage recognition for global genome nucleotide excision repair2010
Author(s)
Nishi, R., Tak, Y.-S., Sakai, W., Hanaoka, F., and Sugasawa, K.
Organizer
The 7th International Symposium on DNA Replication, Recombination and Repair(3R Symposium)
Place of Presentation
Toyama, Japan
Year and Date
20101026-30
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[Presentation] Post-translational modification of XPC protein controls global genome nucleotide excision repair2009
Author(s)
Tak, Y.-S., Shimura, T., Nishi, R., Okuda-Shimizu, Y., Shimizu, Y., Hanaoka, F., Sugasawa, K.
Organizer
第32回日本分子生物学会年会
Place of Presentation
横浜
Year and Date
20091209-12
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[Presentation] Post-translational modification of XPC protein controls global genome nucleotide excision repair2009
Author(s)
Tak, Y.-S., Shimura, T., Nishi, R., Okuda-Shimizu, Y., Shimizu, Y., Hanaoka, F., and Sugasawa, K.
Organizer
The 3rd ASM Conference on DNA Repair and Mutagenesis
Place of Presentation
Whistler, Canada
Year and Date
20090530-0605
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[Presentation] Centrin 2 enhances in vitro nucleotide excision repair via complex formation with xeroderma pigmentosum group C pretein through its C-terminal domain2008
Author(s)
Nishi, R., Miyake, H., Murakami, K., Kitano, K., Hanaoka, F., and Sugasawa, K.
Organizer
第31回日本分子生物学会年会・第81回日本生化学会大会(BMB2008)
Place of Presentation
神戸
Year and Date
20081209-12
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[Presentation] Molecular mechanisms underlying efficient DNA damage recognition for nucleotide excision repair2008
Author(s)
Sugasawa, K., Nishi, R., Akagi, J., Tak, Y.-S., Kobayashi, H., and Hanaoka, F.
Organizer
The 6th International Symposium on DNA Replication, Recombination and Repair(3R Symposium)
Place of Presentation
Kakegawa, Shizuoka
Year and Date
20081027-30
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