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Reduction of sensitivity to ultraviolet light in excision-deficient Escherichia coli strain WP2 uvrA
Abstract:
Mutants with increased resistance to UV light were isolated from Escherichia coli WP2 uvrA. Most of these isolates were designated as true or partial revertants of the uvrA- mutation. However, one class of mutants showed only a moderate increase in resistance to UV. The gene responsible for this phenotypic change is closely linked to the lac locus and has been designated the suuA gene (suppressor of uvrA).