Ready-to-use ELISA kits are available for the detection of Granzyme M (lymphocyte met-ase 1), an alias of the protein, granzyme M. The official gene symbol is GZMM. The protein, with a mass of 27.5 kDa and length of 257 residues, is reported to be secreted. It is a member of the Peptidase S1 family, Granzyme subfamily and may be known by other names, including: MET1, LMET1, met-ase, lymphocyte met-ase 1, Met-1 serine protease, and HU-Met-1.