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E. coli viability against assembly 3 (A), metallacycle 1 (B), and assembly 3′ (C) in the dark and in 25-mW/cm2, 420-nm light irradiation for 15 min. Assembly 3 was prepared with 15 μM protein 2 and different concentrations of metallacycle 1. Assembly 3′ was prepared with 15 μM protein 2′ and different concentrations of metallacycle 1. Data are shown as mean ± SD (n = 3). Error bars represent the SD of 3 replicates. *P < 0.05; **P < 0.01.
