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- W36769144 abstract "The nuclear signaling that is triggered in response to DNA damage entails the recruitment and assembly of repair proteins and the induction of genes involved in the activation of cell cycle checkpoint, apoptosis or senescence. The extensive changes in chromatin structure underlying these processes suggest that chromatin-modifying enzymes could be relevant targets of DNA damage-activated signaling. The acetyltransferases p300 and CBP participate in DNA damage-activated responses, including local histone hyperacetylation, cell cycle regulation, and co-activation of DNA damage activated proteins, such as p53, p73 and BRCA1. However, the link between DNA damage and p300/CBP activation has not been identified.We have detected p300 tyrosine phosphorylation in response to DNA damage. We show that the DNA damage-activated cAbl tyrosine kinase enters the nuclei of cells exposed to genotoxic agents and phosphorylates p300 on a tyrosine residue within the bromodomain that is conserved in p300, CBP and many other bromodomain-containing proteins. Antibodies against tyrosine phosphorylated p300/CBP show a DNA damage-inducible nuclear staining, suggesting that p300 tyrosine phosphorylation is an event linking DNA damage and chromatin modifications." @default.
- W36769144 created "2016-06-24" @default.
- W36769144 creator A5007169339 @default.
- W36769144 date "2010-01-15" @default.
- W36769144 modified "2023-09-23" @default.
- W36769144 title "p300/CBP tyrosine phosphorylation in response to dna damage activated by c-Abl tyrosine kinase" @default.
- W36769144 hasPublicationYear "2010" @default.
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