3.4.22.38	aggrecan + H2O	-	
3.4.22.38	aggrecan + H2O	degradation	
3.4.22.38	alpha-isomerized C-telopeptide + H2O	-	
3.4.22.38	beta-endorphin + H2O	-	
3.4.22.38	beta-isomerized C-telopeptide + H2O	-	
3.4.22.38	bradykinin + H2O	-	
3.4.22.38	calf skin collagen type I + H2O	-	
3.4.22.38	chemo-attractant stromal-derived factor-1alpha + H2O	the enzyme cleaves chemo-attractant stromal-derived factor-1alpha (SDF-1alpha) at 3 sites in the N-terminus, which is the region of SDF-1alpha that binds to its receptors	
3.4.22.38	Collagen + H2O	cathepsin K cleaves within the telo as well as triple helical domains of collagens	
3.4.22.38	collagen I + H2O	-