Kurarinol is a potent inhibitor of sortase A, with an IC50 value of 107.7 ± 6.6 μM. Kurarinol has extremely strong tyrosinase inhibitory activity, exerts varying degrees of inhibition on tyrosinase-dependent melanin biosynthesis, is a candidate as skin-whitening agents.
β-Amanitin, a cyclic peptide toxin found in the poisonous Amanita phalloides mushroom, inhibits eukaryotic RNA polymerase II and III, thereby disrupting protein synthesis.
Fasciculic acid B is the ester of fasciculol B and 3-hydroxy-3-methylglutaric acid. Fasciculic acid B is calmodulin antagonist from mushroom Naematoloma fasciculare.