Identifiers
HUGO:GZMM
Maps_Modules
HMC:AVOIDING_IMMUNE_DESTRUCTION
Adaptive Immune Response / TCR_SIGNALING
References
PMID:14499263
PMID:15607806, PMID:7734049
Five granzymes are expressed in human NK cells (Grz A, B, H, K and M)
GrzA and GrzK are trypsins (cleaving at basic residues arginine and lysine)
GrzB is an aspase, cleaving after aspartic acid residues, and GrzH is a chymase, cleaving after hydrophobic residues such as phenylalanine.
GrzM has a unique enzyme specificity, preferring cleavage after methionine, leucine, or isoleucine.