2.7.1.180	Ca2+	presence of a Ca2+ ion in metal site 1 in the apo form of mutant Ftp_EcY60N, the Ca2+ ion serves a role in properly positioning substrate and protein residues	757628	
2.7.1.180	Cd2+	highly activates by 4fold	762233	
2.7.1.180	Co2+	activates	762233	
2.7.1.180	Mg2+	dependent on	725516	
2.7.1.180	Mg2+	dependent on, metal-dependent enzyme	757628	
2.7.1.180	Mg2+	dependent on, metal-dependent enzyme, bimetal center in the crystal structure of Escherichia coli Ftp	757628	
2.7.1.180	Mg2+	required	761498	
2.7.1.180	Mg2+	required for catalysis, Mg2+ does not play a major role in stabilizing the interaction of the protein with FAD, Mg2+ in the preferred divalent cation	762233	
2.7.1.180	Mg2+	required, dependent on, Mg2+ ion is directly involved in catalysis. A single metal ion is bound in the wild-type enzyme and mutant Ftp_EcE169K structures. The inhibited mutant Ftp_EcY60N contains a bimetal Mg2+ center	757628	
2.7.1.180	Mn2+	activates	762233