Evidence for diversity of substrate specificity among members of the chymase family of serine proteases.

Abstract excerpt

The term chymase is used to signify a chymotrypsin-like protease stored within the secretory granules of mast cells. Primarily based on amino acid sequence homology, 18 chymases have been identified among different animals. This study, which compares the structure of the primary specificity pocket (S1 subsite), defines a subgroup of four chymases likely to have a substrate specificity with more elastase- than...

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