3.4.22.B50	FRLKGG-4-nitroanilide + H2O	-	Severe acute respiratory syndrome-related coronavirus	FRLKGG + 4-nitroaniline	-	?	431859	
3.4.22.B50	FTKLAGGKISFS + H2O	-	Human coronavirus NL63	FTKLAG + GKISFS	-	?	417951	
3.4.22.B50	Gelatin + H2O	-	Tabernaemontana divaricata	?	-	?	16570	
3.4.22.B50	ISG15-nsp2-fusion protein + H2O	-	Alphacoronavirus	?	-	?	384933	
3.4.22.B50	ISG15-nsp2-fusion protein + H2O	-	Alphacoronavirus SARS-CoV	?	-	?	384933	
3.4.22.B50	MHV substrate	-	Alphacoronavirus	?	-	?	385188	
3.4.22.B50	N-benzoyl-Phe-Val-Arg-4-nitroanilide + H2O	-	Tabernaemontana divaricata	N-benzoyl-Phe-Val-Arg + 4-nitroaniline	-	?	74217	
3.4.22.B50	PLP2-MP1 precursor polyprotein + H2O	-	Alphacoronavirus	MP1 + ?	-	?	385562	
3.4.22.B50	RLRGG-7-amido-4-methylcoumarin + H2O	-	equine arteritis virus	RLRGG + 7-amino-4-methylcoumarin	-	?	432349	
3.4.22.B50	ubiquitin + H2O	-	equine arteritis virus	?	-	?	355649