Table 2.

Comparison of enzyme activities of four types of SARS-CoV-2 M^pros.

SARS-CoV-2 Mpro	Km (μM)	kcat (s−1)	kcat/Km (M−1s−1)
H6-WT	41.81 ± 9.79	0.0058 ± 0.0013	139
G-WT	28.01 ± 4.77	0.0110 ± 0.0016	393
WT-GPH6	26.48 ± 5.67	0.4167 ± 0.0807	15736
WT	13.31 ± 1.33	0.3259 ± 0.0277	24485