A new study reveals how the amygdala is involved in controlling predatory behavior in mice.
January 15, 2002|
No one really understands why activation of the tumor suppressor p53 sometimes leads to cell-cycle arrest and sometimes induces an apoptotic program. It has been proposed that post-translational modifications (phosphorylation and acetylation) induced by genotoxic stress affect the DNA binding affinity of p53. In the January 8 issue of Proceedings of the National Academy of Sciences, Kaeser and Iggo suggest that such models should be reassessed in light of their results using chromatin immunoprec