Article
Mutational and DNA binding specificity of the carcinogen 2-amino-3, 8-dimethylimidazo[4,5-f]quinoxaline.
The Journal of biological chemistry - 2 Aug 1996
Solomon M S, Morgenthaler P M, Turesky R J, Essigmann J M
Abstract excerpt
The mutagenic specificity of 2-amino-3,8-dimethylimidazo[4, 5-f]quinoxaline (MeIQx), a food-borne mutagen and carcinogen, was studied. Plasmid pK19 was modified by photolysis with the 2-azido form of the carcinogen. High pressure liquid chromatography confirmed that the photoactivated azide formed primarily C8 and N2 guanyl adducts. Transformation of modified pK19 into excision repair competent Escherichia coli...
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