(i.e. what proteins it can digest), not to any kind of evolutionary grouping.

Forms and classification

Eight human genes exist for elastase:

The four "pancreatic elastases", chymotrypsin, and neutrophil elastase are serine proteases. The "macrophage elastase" is a matrix metallopeptidase.

Chymotrypsin is weaker at digesting elastin than the archetypical pancreatic