Irradiation of plasmid DNA/Gd3+ mixtures with thermal neutrons induces DNA double-strand breaks (dsb). However, the extent of breakage is markedly reduced by sequestering the Gd3+ from DNA by addition of EDTA. Since the 157Gd neutron capture event involves some internal conversion, we suggest that the DNA dsb induction results from Auger electron emission.
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Martin et al. (1988) studied this question.
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