ID 3.4.21.78 DE granzyme A. AN cytotoxic T-lymphocyte proteinase 1. CA Hydrolysis of proteins, including fibronectin, type IV collagen and CA nucleolin. Preferential cleavage: -Arg-|-Xaa-, -Lys-|-Xaa- >> -Phe-|- CA Xaa- in small molecule substrates. CC -!- From cytotoxic T lymphocyte granules. CC -!- The human enzyme does not cleave Phe-|-Xaa. CC -!- Belongs to peptidase family S1. DR Q7YRZ7, GRAA_BOVIN ; P12544, GRAA_HUMAN ; P11032, GRAA_MOUSE ; //