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
6NMM-MG-1	MG	Mg²⁺	D1E2	ASP.GLU.	A.ASP.GLU.HOH.	✔	3	5	2	✘
6NMM-MG-2	MG	Mg²⁺	D1E2	ASP.GLU.	A.ASP.GLU.HOH.	✔	3	6	2	✘
6NML-MG-1	MG	Mg²⁺	D1E2	ASP.GLU.	APC.ASP.GLU.HOH.NMY.	✔	3	6	2	✔
6NML-MG-2	MG	Mg²⁺	D1E2	ASP.GLU.	APC.ASP.GLU.HOH.NMY.	✔	3	6	2	✘
6NO0-MG-1	MG	Mg²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✔
6NO1-MG-1	MG	Mg²⁺	D2E1	ASP.GLU.	ASP.GLU.HOH.	✔	3	4	2	✔
6NO4-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.	✔	2	6	2	✔
6NO3-MG-1	MG	Mg²⁺	D2E1	ASP.GLU.	ASP.GLU.HOH.	✔	3	4	2	✔
6N7E-MG-1	MG	Mg²⁺	D2	ASP.	ASP.	✔	2	2	2	✔
2JBZ-K-1	K	K⁺	H3S3	HIS.SER.	HIS.SER.	✔	6	6	3	✔
2ISP-NA-1	NA	Na⁺	G1I1T1V1	DG.ILE.THR.VAL.	DG.HOH.ILE.THR.VAL.	✘	4	6	2	✘
2ISP-NA-2	NA	Na⁺	C1K1L1V1	DC.LEU.LYS.VAL.	DC.LEU.LYS.VAL.	✘	4	4	2	✘
2ISO-NA-1	NA	Na⁺	G1I1T1V1	DG.ILE.THR.VAL.	ASP.GFF.HOH.	✘	4	5	2	✘
2ISO-NA-2	NA	Na⁺	C1K1L1V1	DC.LEU.LYS.VAL.	DG.HOH.ILE.THR.VAL.	✘	4	6	2	✘
2J4K-CD-1	CD	Cd²⁺	H3	HIS.	HIS.	✔	3	3	3	✔
2J4J-CO-1	CO	Co²⁺	H3	HIS.	HIS.	✔	3	3	3	✔
2J4J-CO-2	CO	Co²⁺	H3	HIS.	HIS.	✔	3	3	3	✘
2KFN-MN-1	MN	Mn²⁺	D1G1	ASP.DG.	ASP.DG.HOH.	✘	2	3	2	✔
1A73-MG-1	MG	Mg²⁺	A1N1	ASN.DA.	ASN.DA.HOH.	✘	2	6	2	✔
1A73-MG-2	MG	Mg²⁺	A1N1	ASN.DA.	ASN.DA.HOH.	✘	2	6	2	✔