3.4.24.44	Basement membrane preparation + H2O	-	Crotalus atrox	Soluble peptides	-	?	17039	
3.4.24.44	Basement membrane preparation + H2O	component band a, most active on this substrate	Crotalus atrox	Soluble peptides	-	?	17039	
3.4.24.44	basement membrane preperation from Engel-breth-Holm-Swarm tumor + H2O	great proteolytic activity	Crotalus atrox	?	-	?	384253	
3.4.24.44	Basement membranes surrounding capillaries + H2O	contributes to hemorrhagic property by weakening capillary walls, together with atrolysins B and C member of the class P-I hemorrhagic toxins	Crotalus atrox	?	-	?	369554	
3.4.24.44	Basement membranes surrounding capillaries + H2O	together with hemorrhagic toxins a, b, c, d and f responsible for hemorrhage	Crotalus atrox	?	-	?	369554	
3.4.24.44	collagen type IV + H2O	-	Crotalus atrox	?	-	?	65137	
3.4.24.44	Collagen type IV alphaI(IV) chains + H2O	basement membrane component, cleavage at Ala219-Gln220	Crotalus atrox	?	-	?	17084	
3.4.24.44	Collagen type IV alphaII(IV) chain + H2O	basement membrane component, cleavage at Thr228-Leu229	Crotalus atrox	?	-	?	17085	
3.4.24.44	Dimethylcasein + H2O	-	Crotalus atrox	?	-	?	16357	
3.4.24.44	Dimethylhemoglobin + H2O	-	Crotalus atrox	?	-	?	17089