Table 1

Properties of granzymes in humans and rodents

Granzyme
Species
Activity
Predicted cleavage
Mr (× 103)
Cellular expression

A
Mouse, human, rat
Tryptase
Lysine, arginine
65*
CTLs, NK cells, γδ T cells and thymocytes
B
Mouse, human, rat
Asp-ase
Aspartic acid > glutamic acid
32
CTLs, NK cells, γδ T cells and thymocytes
C
Mouse, rat
Unknown
Asparagine or serine
27
CTLs
D
Mouse
Unknown
Hydrophobic
35-50
CTLs
E
Mouse
Unknown
Hydrophobic
35-45
CTLs
F
Mouse, rat
Unknown
Hydrophobic
35-50
CTLs
G
Mouse
Unknown
Hydrophobic
30
CTLs
H
Human
Chymase
Phenylalanine > tyrosine
32
CTLs and NK cells
J
Rat
Unknown
Unknown
30
Unknown
M
Mouse, human, rat
Met-ase
Methionine > leucine
30
NK cells

*Granzyme A is the only granzyme that is found as a homodimer and its relative molecular mass (Mr) is therefore higher.

Trapani Genome Biology 2001 2:reviews3014.1   doi:10.1186/gb-2001-2-12-reviews3014