Publication Date:
2009-02-24
Description:
Life and death fate decisions allow cells to avoid massive apoptotic death in response to genotoxic stress. Although the regulatory mechanisms and signalling pathways controlling DNA repair and apoptosis are well characterized, the precise molecular strategies that determine the ultimate choice of DNA repair and survival or apoptotic cell death remain incompletely understood. Here we report that a protein tyrosine phosphatase, EYA, is involved in promoting efficient DNA repair rather than apoptosis in response to genotoxic stress in mammalian embryonic kidney cells by executing a damage-signal-dependent dephosphorylation of an H2AX carboxy-terminal tyrosine phosphate (Y142). This post-translational modification determines the relative recruitment of either DNA repair or pro-apoptotic factors to the tail of serine phosphorylated histone H2AX (gamma-H2AX) and allows it to function as an active determinant of repair/survival versus apoptotic responses to DNA damage, revealing an additional phosphorylation-dependent mechanism that modulates survival/apoptotic decisions during mammalian organogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2692521/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2692521/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cook, Peter J -- Ju, Bong Gun -- Telese, Francesca -- Wang, Xiangting -- Glass, Christopher K -- Rosenfeld, Michael G -- R01 CA097134/CA/NCI NIH HHS/ -- R01 CA097134-06A1/CA/NCI NIH HHS/ -- R01 CA097134-07/CA/NCI NIH HHS/ -- R01 DK039949/DK/NIDDK NIH HHS/ -- R01 DK039949-17S1/DK/NIDDK NIH HHS/ -- R01 DK039949-18/DK/NIDDK NIH HHS/ -- R01 HL065445/HL/NHLBI NIH HHS/ -- R01 HL065445-08/HL/NHLBI NIH HHS/ -- R01 HL065445-09/HL/NHLBI NIH HHS/ -- R01 NS034934/NS/NINDS NIH HHS/ -- R01 NS034934-18/NS/NINDS NIH HHS/ -- R01 NS034934-19/NS/NINDS NIH HHS/ -- R01 NS034934-20A1/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2009 Apr 2;458(7238):591-6. doi: 10.1038/nature07849. Epub 2009 Feb 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute School of Medicine, University of California, San Diego, California 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19234442" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
*Apoptosis
;
Ataxia Telangiectasia Mutated Proteins
;
Cell Cycle Proteins/metabolism
;
Cell Line
;
Cell Survival
;
DNA Damage
;
DNA Repair
;
DNA-Binding Proteins/deficiency/genetics/metabolism
;
Histones/deficiency/genetics/*metabolism
;
Humans
;
Intracellular Signaling Peptides and Proteins/deficiency/genetics/metabolism
;
Mice
;
Nuclear Proteins/deficiency/genetics/metabolism
;
Phosphorylation
;
Phosphotyrosine/metabolism
;
Protein Binding
;
Protein Tyrosine Phosphatases/deficiency/genetics/metabolism
;
Protein-Serine-Threonine Kinases/metabolism
;
Substrate Specificity
;
Tumor Suppressor Proteins/metabolism
;
Tyrosine/*metabolism
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
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