title: Changing of the guard: how ATM hands off DNA double-strand break signaling to ATR.
abstract: In a recent issue of Molecular Cell, Shiotani and Zou (2009) elucidate the biochemical mechanism underlying sequential ATM and ATR activation at DNA double-strand breaks, demonstrating that resection transforms ATM substrates into ATR substrates.
authors.affiliation: Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA. nick.rhind@umassmed.edu
authors.forename: Nicholas
authors.initials: N
authors.lastname: Rhind