Rabbit Anti-Human GZMH polyclonal antibody for WB, IF, ELISA. The protein encoded by this gene is a member of the granzyme family. Members of this family are highly conserved serine;proteases that eliminate transformed cells and virus-infected cells. This protein, which has chymotrypsin-like;activity, has a preference for bulky aromatic amino acids at the P1 position and for acidic residues at the P3 and;P4 positions. This protein is reported to be constitutively expressed in NK cells and may play a role in the;cytotoxic arm of the innate immune response by inducing target cell death and by directly cleaving substrates in;pathogen-infected cells. Alternative splicing results in multiple transcript variants that encode different protein;isoforms.