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. 2021 Feb 28;11:45. doi: 10.1186/s13578-021-00564-x

Fig. 1.

Fig. 1

SARS-CoV-2 PLpro expression and characterization. a SDS-PAGE of purified PLpro. Lane M: protein ladder; lane 1: tagged-PLpro; lane 2: authentic PLpro. b Michaelis–Menten plot of 100 nM PLpro with various concentrations of fluorometric substrate. The best-fit Km = 70.92 ± 10.15 µM