... ions in plant and mammalian copper- amine oxidases Eur J Inorg Chem 1, 35–42 Medda, R., Padiglia, A & Floris, G (1995) Plant copper- amine oxidases Phytochemistry 39, 1–9 ˇ Padiglia, A. , Medda, R., ... homopropargylamine terminus Our finding that both derivatives act as inactivators of GPAO, albeit weaker than DAPY, suggests that enzyme metabolism of DAPY leading to inactivation can occur at either ... characterization was prepared by a cyclic flux of DAPY solution through a hydroxyapatite column (1 · 10 cm) containing immobilized GPAO and catalase After GPAO (10 mkat) and catalase (10 mkat)...