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. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2018 Feb 5;29(5):859–865. doi: 10.1007/s13361-017-1880-z

Figure 4.

Figure 4

KP4 activity validation. Radii of inhibition observed through agar diffusion assays testing purified KP4 against the challenge culture U. maydis P6. KP4 was added to each well in varying concentrations using a dilution series of KP4 starting at 9 μM and decreasing 2-fold to 0.018 μM. Erythromycin [Erm (+)] was used as a positive control at 100 μg/mL. Zones of inhibition were measured 4 d after application to UMP6-infused agar. Killing assays at all KP4 and Erm concentrations were performed in duplicate