The peroxidase-mediated (+)-catechin oxidation was differentially inhibited by dehydrodicatechin A, showing a competitive type inhibition and a k(I) of 6.4 microM.

Levitide is a neurohormone-like peptide, can be isolated from skin secretions of the South African frog Xenopus laevis. Levitide comes from preprolevitide, is 88 residues long and contains contains the levitide peptide at the C terminus (Glu-Gly-Met-Ile-Gly-Thr-Leu-Thr-Ser-Lys-Arg-Ile-Lys-Gln-NH2) and the putative signal sequence at the N terminus.

Phytolaccoside B(Esculentoside B) is an antifungal monodesmoside triterpenoid glycoside, it has potent inhibitory activity against agrobacterial plant transformation.