Ontology highlight
ABSTRACT:
SUBMITTER: Mao P
PROVIDER: S-EPMC4942568 | biostudies-literature | 2016 Jul
REPOSITORIES: biostudies-literature
Nature communications 20160711
Telomeres prevent chromosome ends from being recognized as double-stranded breaks (DSBs). Meanwhile, G/C-rich repetitive telomeric DNA is susceptible to attack by DNA-damaging agents. How cells balance the need to protect DNA ends and the need to repair DNA lesions in telomeres is unknown. Here we show that telomeric DSBs are efficiently repaired in proliferating cells, but are irreparable in stress-induced and replicatively senescent cells. Using the CRISPR-Cas9 technique, we specifically induc ...[more]