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UV survivability of bacteria (A). UV survivability of wild-type S. proteamaculans (WT, black circles), and mutant S. proteamaculans with an in-frame deletion of both genes of the protealysin operon (∆(pln-m4in), open circles) and with an in-frame deletion of the emfourin gene (∆m4in, black triangles). (B). UV survivability of E. coli AB1157 transformed with the control plasmid (black circles) and the plasmid carrying the protealysin gene (open circles).
