Cited by 157DNA Repair MechanismsCancer-related Molecular PathwaysBRCA gene mutations in cancer

Human Claspin works with BRCA1 to both positively and negatively regulate cell proliferation

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Lin, Shiaw-Yih, Li, Kaiyi, Stewart, Grant S., Elledge, Stephen J.·2004·Proceedings of the National Academy of Sciences

Abstract

Claspin is a homolog of Mrc1, a checkpoint protein required for the DNA replication checkpoint in yeast. In Xenopus , phosphorylated Claspin binds to xChk1 and regulates xChk1 activation in response to replication stress. In this study, we have shown that the human homolog of Claspin is required for resistance to multiple forms of genotoxic stress including UV, IR, and hydroxyurea. Phosphorylation of Claspin was found to depend on the ataxia telangiectasia mutated-Rad3 related (ATR) pathway. DNA damage induces the formation of a complex between Claspin and BRCA1, a second regulator of Chk1 activation. Claspin was found to control BRCA1 phosphorylation on serine 1524, a site whose phosphorylation is controlled by the ATR pathway. These results are consistent with a model in which ATR regulates Claspin phosphorylation in response to DNA damage and replication stress resulting in recruitment and phosphorylation of BRCA1. BRCA1 and Claspin then function to activate the tumor suppressor Chk1. Unexpectedly, we found that Claspin has a second, positive role in control of the cell cycle as Claspin overexpression increased cell proliferation. These results suggest that Claspin has properties of both a tumor suppressor and an oncogene.

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  1. [1]Melo, J. & Toczyski, D. (2002) Curr. Opin. Cell Biol. 14, 237-245. [DOI] [PubMed] [Google Scholar]
  2. [2]Osborn, A., Elledge, S. & Zou, L. (2002) Trends Cell Biol. 12, 509-516. [DOI] [PubMed] [Google Scholar]
  3. [3]Abraham, R. (2001) Genes Dev. 15, 2177-2196. [DOI] [PubMed] [Google Scholar]
  4. [4]Shiloh, Y. (2001) Curr. Opin. Genet. Dev. 11, 71-77. [DOI] [PubMed] [Google Scholar]
  5. [5]Kumagai, A. & Dunphy, W. (2000) Mol. Cell 6, 839-849. [DOI] [PubMed] [Google Scholar]
  6. [6]Alcasabas, A., Osborn, A., Bachant, J., Hu, F., Werler, P., Bousset, K., Furuya, K., Diffley, J., Carr, A. & Elledge, S. (2001) Nat. Cell Biol. 3, 958-965. [DOI] [PubMed] [Google Scholar]
  7. [7]Tanaka, K. & Russell, P. (2001) Nat. Cell Biol. 3, 966-972. [DOI] [PubMed] [Google Scholar]
  8. [8]Sanchez, Y., Wong, C., Thoma, R., Richman, R., Wu, Z., Piwnica-Worms, H. & Elledge, S. (1997) Science 277, 1497-1501. [DOI] [PubMed] [Google Scholar]
  9. [9]Liu, Q., Guntuku, S., Cui, X. S., Matsuoka, S., Cortez, D., Tamai, K., Luo, G., Carattini-Rivera, S., DeMayo, F., Bradley, A., et al. (2000) Genes Dev. 14, 1448-1459. [PMC free article] [PubMed] [Google Scholar]
  10. [10]Matsuoka, S., Huang, M. & Elledge, S. (1998) Science 282, 1893-1897. [DOI] [PubMed] [Google Scholar]
  11. [11]Matsuoka, S., Rotman, G., Ogawa, A., Shiloh, Y., Tamai, K. & Elledge, S. (2000) Proc. Natl. Acad. Sci. USA 97, 10389-10394. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. [12]Kumagai, A. & Dunphy, W. (2003) Nat. Cell Biol. 5, 161-165. [DOI] [PubMed] [Google Scholar]
  13. [13]Lee, J., Kumagai, A. & Dunphy, W. (2003) Mol. Cell 11, 329-340. [DOI] [PubMed] [Google Scholar]
  14. [14]Osborn, A. & Elledge, S. (2003) Genes Dev. 17, 1755-1767. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. [15]Katou, Y., Kanoh, Y., Bando, M., Noguchi, H., Tanaka, H., Ashikari, T., Sugimoto, K. & Shirahige, K. (2003) Nature 424, 1078-1083. [DOI] [PubMed] [Google Scholar]
  16. [16]Wang, B., Matsuoka, S., Carpenter, P. & Elledge, S. (2002) Science 298, 1435-1438. [DOI] [PubMed] [Google Scholar]
  17. [17]Xu, B., Kim, S., Lim, D. & Kastan, M. (2002) Mol. Cell. Biol. 22, 1049-1059. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. [18]Painter, R. & Young, B. (1980) Proc. Natl. Acad. Sci. USA 77, 7315-7317. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. [19]Xu, B., Kim, S. & Kastan, M. (2001) Mol. Cell. Biol. 21, 3445-3450. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. [20]Zhao, H., Watkins, J. & Piwnica-Worms, H. (2002) Proc. Natl. Acad. Sci. USA 99, 14795-14800. [DOI] [PMC free article] [PubMed] [Google Scholar]
  21. [21]O'Driscoll, M., Ruiz-Perez, V., Woods, C., Jeggo, P. & Goodship, J. (2003) Nat. Genet. 33, 497-501. [DOI] [PubMed] [Google Scholar]
  22. [22]Yarden, R., Pardo-Reoyo, S., Sgagias, M., Cowan, K. & Brody, L. (2002) Nat. Genet. 30, 285-289. [DOI] [PubMed] [Google Scholar]
  23. [23]Chini, C. & Chen, J. (2003) J. Biol. Chem. 278, 30057-30062. [DOI] [PubMed] [Google Scholar]
  24. [24]Walworth, N. (2001) Curr. Opin. Genet. Dev. 11, 78-82. [DOI] [PubMed] [Google Scholar]
  25. [25]Guo, Z., Kumagai, A., Wang, S. & Dunphy, W. (2000) Genes Dev. 14, 2745-2756. [DOI] [PMC free article] [PubMed] [Google Scholar]
  26. [26]Jin, J., Shirogane, T., Xu, L., Nalepa, G., Qin, J., Elledge, S. J. & Harper, J. W. (2003) Genes Dev. 17, 3062-3074. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. [27]Zou, L. & Elledge, S. (2003) Science 300, 1542-1548. [DOI] [PubMed] [Google Scholar]

Cited by

Sorted by citations

Authors
Lin, S.-Y., Li, K., Stewart, G. S., & Elledge, S. J.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
2004-04-19
Volume
101
Issue
17
Pages
6484-6489
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2129258256
Cited by
156
References
27
Citations by year
2026: 1 · 2025: 4 · 2024: 11 · 2023: 5 · 2022: 4 · 2021: 4 · 2020: 8 · 2019: 4 · 2018: 6 · 2017: 3 · 2016: 5 · 2015: 3 · 2014: 6 · 2013: 3 · 2012: 7
FWCI
5.33
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • University of Birmingham Research Portal (University of Birmingham) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health
  • National Cancer Institute (F32CA093043)
  • National Institute of General Medical Sciences (GM-44664, R37GM044664, R01GM044664)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › BRCA gene mutations in cancer
Keywords
Claspin, BRCA1, Chk1, ATR pathway, DNA damage response, genotoxic stress resistance, replication stress, cell proliferation, tumor suppressor, oncogenes, protein phosphorylation, hydroxyurea
MeSH terms
Base Sequence, Carrier Proteins, Cell Division, Cell Survival, DNA Damage, Humans, Oligoribonucleotides, Phosphorylation, Protein Binding, BRCA1 Protein, Xenopus Proteins, Adaptor Proteins, Signal Transducing

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