Processing of DNA Double-Strand Breaks in Yeast.

Single-stranded DNA (ssDNA) intermediates are essential for homology-dependent repair of DNA double-strand breaks (DSBs) and for the DNA damage response. Here we describe methods routinely used to identify ssDNA intermediates formed by end processing of site-specific DSBs in Saccharomyces cerevisiae. These methods have been applied in other model systems and human cell lines, and are useful tools to gain insight into the enzymes that process DSBs and how they are regulated.