Sunday, March 25, 2007


A paper in PLoS Biology demonstrates that Deinococcus radiodurans, a radiation resistant bacteria is not resistant to radiation due to better DNA repair. Surprising, to me, since I always thought this was the power of radiation in order to sterilize foods ect. Apparently it is protein oxidation causes the effectiveness of irradiation, and radiodurans uses a Mn redox cycle to effectively protect proteins but not DNA.