Dynamics of DNA repair and recruitment of repair factors to damaged DNA can be studied by live cell microscopy. DNA damage is usually inflicted by a laser beam illuminating a DNA-interacting photosensitizer in a small area of the nucleus. We demonstrate that a focused beam of visible low intensity light alone can inflict local DNA damage and permit studies of DNA repair, thus avoiding potential artifacts caused by exogenous photosensitizers.
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| http://dx.doi.org/10.1016/j.dnarep.2012.09.008 | DOI Listing |
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