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(A) Hemolytic activities derived from E. coli strain 536 (♦), its isogenic mutant 536rfaH::cat (░⃞), and trans-complemented strain 536rfaH::cat (pSMK1) (▴). Values represent the percentage of total hemolysis relative to that induced by Triton X-100. (B) Growth curves of strain 536 (♦), 536rfaH::cat (░⃞), and 536rfaH::cat (pSMK1) (▴).
