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Cited by 198

The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.

p53 C-Terminal Phosphorylation by CHK1 and CHK2 Participates in the Regulation of DNA-Damage-induced C-Terminal Acetylation

Open access
Ou, Yi-Hung, Chung, Pei-Han, Sun, Te-Ping, Shieh, Sheau-Yann·2005·Molecular Biology of the Cell

Abstract

The tumor suppressor protein p53 mediates stress-induced growth arrest or apoptosis and plays a major role in safeguarding genome integrity. In response to DNA damage, p53 can be modified at multiple sites by phosphorylation and acetylation. We report on the characterization of p53 C-terminal phosphorylation by CHK1 and CHK2, two serine/threonine (Ser/Thr) protein kinases, previously implicated in the phosphorylation of the p53 N terminus. Using tryptic phosphopeptide mapping, we have identified six additional CHK1 and CHK2 sites residing in the final 100 amino acids of p53. Phosphorylation of at least three of these sites, Ser366, Ser378, and Thr387, was induced by DNA damage, and the induction at Ser366 and Thr387 was abrogated by small interfering RNA targeting chk1 and chk2. Furthermore, mutation of these phosphorylation sites has a different impact on p53 C-terminal acetylation and on the activation of p53-targeted promoters. Our results demonstrate a possible interplay between p53 C-terminal phosphorylation and acetylation, and they provide an additional mechanism for the control of the activity of p53 by CHK1 and CHK2.

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Metadata

Authors
Ou, Y.-H., Chung, P.-H., Sun, T.-P., & Shieh, S.-Y.
Venue
Molecular Biology of the Cell
Published
2005-04
Volume
16
Issue
4
Pages
1684-1695
ISSN
  • 1059-1524 (ISSN-L)
  • 1939-4586
OpenAlex
W2153953411
Cited by
198
References
15
FWCI
3.96
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: p53 C-Terminal Phosphorylation by CHK1 and CHK2 Participates in the Regulation of DNA-Damage-induced C-Terminal Acetylation. https://app.cochat.ai/papers/10.1091/mbc.e04-08-0689
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Ou, Y.-H., Chung, P.-H., Sun, T.-P., & Shieh, S.-Y. (2005). p53 C-Terminal Phosphorylation by CHK1 and CHK2 Participates in the Regulation of DNA-Damage-induced C-Terminal Acetylation. Molecular Biology of the Cell. https://doi.org/10.1091/mbc.e04-08-0689

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