Protease K is a nonspecific serine protease that is useful for general digestion of proteins.?It is active in the presence of SDS or urea and over a wide range of pH (4-12), salt concentrations, and temperatures.

γ-L-Glutamyl-L-alanine composed of gamma-glutamate and alanine?is the substrate of CRF21 (gamma-Glutamylcyclotransferase GGCT).

(E)-[6]-Dehydroparadol shows growth inhibition and induction of apoptosis against human cancer cells(IC50 values of 43.02 μM in HCT-116 cell and 41.59 μM in H-1299 cell, respectively).