DNA damage induces phosphorylation of the amino terminus of p53.

@article{Siliciano1997DNADI,
  title={DNA damage induces phosphorylation of the amino terminus of p53.},
  author={Janet D Siliciano and Christine Elizabeth Canman and Yoichi Taya and Kazuyasu Sakaguchi and Ettore Appella and Michael B. Kastan},
  journal={Genes & development},
  year={1997},
  volume={11 24},
  pages={
          3471-81
        }
}
Data are presented demonstrating that DNA damage leads to specific post-translational modifications of p53 protein. Using two-dimensional peptide mapping of in vivo radiolabeled p53 tryptic phosphopeptides, recombinant truncated p53 protein, and synthetic p53 tryptic peptides, a unique p53 phosphopeptide was identified after exposure of ML-1 cells to ionizing irradiation. This peptide represents the first 24 amino acids of p53 and contains three phosphorylated serine residues. A specific p53… CONTINUE READING
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