peptide boronic acids , such as methoxysuccinyl-ala-ala-pro- ( l ) boro-phe-oh , its pinacol ester , and t-butyloxycarbonyl-phe-pro- ( l ) boro-phe-pinacol , inhibited the activity of chymase from connective tissue mast cells approximately 40- to 80-fold more than atypical chymase from mucosal mast cells , and did not inhibit trypsin .
C0055673
chymase
C0024880
mast cells