double-immunodiffusion analysis of extracts revealed immunoreactivity for rat mast cell protease ( rmcp ) -ii , a mr 25,000 neutral protease present in the secretory granules of rat mucosal mast cells and cultured rat bone marrow-derived mast cells , but no immunoreactivity for rmcp-i , the predominant neutral protease of rat connective tissue mast cells .
C0886515
secretory granules
C0055673
rmcp-i