3.1.4.60	Co2+	Pde is strictly dependent on Co2+, Mn2+, Mg2+ or Fe2+, with maximum activity with Mn2+ as a cofactor	
3.1.4.60	Fe2+	Pde is strictly dependent on Co2+, Mn2+, Mg2+ or Fe2+, with maximum activity with Mn2+ as a cofactor	
3.1.4.60	Mg2+	Pde is strictly dependent on Co2+, Mn2+, Mg2+ or Fe2+, with maximum activity with Mn2+ as a cofactor	
3.1.4.60	Mn2+	required	
3.1.4.60	Mn2+	Pde is strictly dependent on Co2+, Mn2+, Mg2+ or Fe2+, with maximum activity with Mn2+ as a cofactor