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. Author manuscript; available in PMC: 2021 Jan 7.
Published in final edited form as: J Am Chem Soc. 2020 Dec 10;142(51):21310–21321. doi: 10.1021/jacs.0c06987

Figure 2.

Figure 2.

(A) Peptides with turn-on fluorophore, acc, as an antibiotic surrogate. (B) Evaluation of acc cleavage from peptides 1 and 2 in a periplasmic extract of E. coli K12 MG1655 (400 μg/mL) at 37 °C.