3.4.21.34	plasma kallikrein	mast cell granule	-	42629	698893	
3.4.21.39	chymase	mast cell granule	-	42629	681201, 681586, 701374	
3.4.21.59	Tryptase	mast cell granule	-	42629	29374, 29378, 29392, 29403, 29404	
3.4.23.34	cathepsin E	mast cell granule	cathepsin E is located in mast-cell secretory granules in complex with heparin proteoglycans, and has a role in processing of procarboxypeptidase A into active protease	42629	669583