Chromatin decondensation is required for repair factors to access damaged DNA. BRIT1/MCPH1, a damage response protein mutated in microcephaly, recruits the chromatin remodelling complex SWI/SNF to sites of DNA damage after phosphorylation by ATM/ATR. This mechanism is critical for efficient DNA repair and survival.
- Guang Peng
- Eun-Kyoung Yim
- Shiaw-Yih Lin