Id	Element	Ion	Binding family	Amino acids or nucleotide residues names	All bound residues	Is homomer	Number of bound amino acids or nucleotide residues	Number of all bound residues	Number of coordinating chains	Representative
3ZDB-MG-2	MG	Mg²⁺	A1C1I1	ALA.DC.ILE.	ALA.DC.HOH.ILE.	✘	3	6	2	✘
3ZI8-MG-1	MG	Mg²⁺	A1V1	ALA.VAL.	ALA.HOH.VAL.	✔	2	6	2	✘
3ZI8-MG-2	MG	Mg²⁺	A1V1	ALA.VAL.	ALA.HOH.VAL.	✔	2	6	2	✘
3ZI8-MG-3	MG	Mg²⁺	A1V1	ALA.VAL.	ALA.HOH.VAL.	✔	2	6	2	✘
3ZVM-MG-1	MG	Mg²⁺	C1D3	ASP.DC.	ASP.DC.HOH.	✘	4	7	2	✔
4AJR-MG-1	MG	Mg²⁺	D2	ASP.	AKG.ASP.HOH.	✔	2	5	2	✔
4AJR-MG-2	MG	Mg²⁺	D2	ASP.	AKG.ASP.HOH.	✔	2	5	2	✘
4AJS-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
4AJS-MG-2	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
4AJB-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
4AJB-MG-2	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
4AOU-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	4	2	✘
4AOU-MG-2	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	4	2	✘
4AOV-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
4AOV-MG-2	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
4B20-MG-1	MG	Mg²⁺	D2G1	ASP.DG.	ASP.DG.	✘	3	3	2	✔
4B20-MG-2	MG	Mg²⁺	D2G1	ASP.DG.	ASP.DG.	✘	3	3	2	✘
3UQ2-MG-1	MG	Mg²⁺	A1D2	ASP.DA.	ASP.DA.HOH.PPV.	✘	3	5	2	✔
3UCW-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.	✔	2	6	2	✔
3V9S-MG-1	MG	Mg²⁺	A1D1	ASP.DA.	ASP.DA.HOH.	✘	2	5	2	✔