Sandra S. Salus

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The two major pathways for repairing double-strand breaks (DSBs), homologous recombination and nonhomologous end joining (NHEJ), have traditionally been thought to operate in different stages of the cell cycle. This division of labor is not absolute, however, and precisely what governs the choice of pathway to repair a given DSB has remained enigmatic. We(More)
V(D)J recombination entails double-stranded DNA cleavage at the antigen receptor loci by the RAG1/2 proteins, which recognize conserved recombination signal sequences (RSSs) adjoining variable (V), diversity (D) and joining (J) gene segments. After cleavage, RAG1/2 remain associated with the coding and signal ends (SE) in a post-cleavage complex (PCC),(More)
The microtubule cytoskeleton plays a pivotal role in cytoplasmic organization, cell division, and the correct transmission of genetic information. In a screen designed to identify fission yeast genes required for chromosome segregation, we identified a strain that carries a point mutation in the SpRan GTPase. Ran is an evolutionarily conserved eukaryotic(More)
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