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The mechanism by which double-strand DNA breaks are repaired in the radiation-resistant bacterium Deinococcus radiodurans is not well understood. This organism lacks the RecBCD helicase/nuclease, which processes broken DNA ends in other bacteria. The RecF pathway is an alternative pathway for recombination and DNA repair in E. coli, when RecBCD is absent due to mutation, and D. radiodurans may rely...
Deinococcus radiodurans survives extremely high doses of ionizing and ultraviolet radiation and treatment with various DNA-damaging chemicals. As an effort to identify and characterize proteins that function in DNA repair in this organism, we have studied the protein encoded by locus DR1572. This gene is predicted to encode a Superfamily I DNA helicase, except that genome sequencing indicated that...
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