Biological Activity
Cathepsin H, derived from human liver, serves dual functions as both an aminopeptidase and an endopeptidase. It plays a significant role in the catabolism of proteins within lysosomes. Cathepsin H is classified as an endoaminopeptidase because it can hydrolyze proteins, N-terminal substituted proteins, amino acid derivatives, and peptides with different chain lengths and N-terminal free amino acid derivatives. This protein is also observed to exhibit amidase and esterase activity.