Living organisms have developed several mechanisms to repair radiation damaged DNA. Over the course of evolution, some of those mechanisms were adapted and modified, and now play important roles in a wide range of biological events such as oxidative stress response, brain development, cell cycle regulation, chromosome dynamics and tumor suppression. The Radiation Biology Center studies the way in which DNA repair mechanisms maintain life by combating various external and internal threats.

http://www.rbc.kyoto-u.ac.jp/about-rbc