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
1CYQ-MG-1	MG	Mg²⁺	A1G1N1	ASN.DA.DG.	ASN.DA.DG.HOH.	✘	3	6	2	✔
1CYQ-MG-2	MG	Mg²⁺	A1G1N1	ASN.DA.DG.	ASN.DA.DG.HOH.	✘	3	6	2	✘
1DUT-MG-1	MG	Mg²⁺	D3	ASP.	ASP.HOH.	✔	3	6	3	✔
1E2A-MG-1	MG	Mg²⁺	D3	ASP.	ASP.HOH.	✔	3	6	3	✔
1E2A-MG-2	MG	Mg²⁺	D3	ASP.	ASP.HOH.	✔	3	6	3	✘
1BL5-MG-1	MG	Mg²⁺	D2	ASP.	AKG.ASP.	✔	2	3	2	✘
1BL5-MG-2	MG	Mg²⁺	D2	ASP.	AKG.ASP.	✔	2	3	2	✘
1BPY-NA-1	NA	Na⁺	G1I1T1V1	DG.ILE.THR.VAL.	DG.ILE.THR.VAL.	✘	4	4	2	✘
1BPY-NA-2	NA	Na⁺	C1K1L1V1	DC.LEU.LYS.VAL.	DC.HOH.LEU.LYS.VAL.	✘	4	6	2	✘
6UI2-MG-1	MG	Mg²⁺	D2E1T1	ASP.DT.GLU.	0KX.ASP.DT.GLU.	✘	4	5	2	✔
6V22-CA-1	CA	Ca²⁺	D3N1Q1	ASN.ASP.GLN.	ASN.ASP.GLN.	✔	5	5	2	✔
6V22-CA-2	CA	Ca²⁺	D3N1Q1	ASN.ASP.GLN.	ASN.ASP.GLN.	✔	5	5	2	✔
6V22-CA-3	CA	Ca²⁺	D3N1Q1	ASN.ASP.GLN.	ASN.ASP.GLN.	✔	5	5	2	✘
6V22-CA-4	CA	Ca²⁺	D3N1Q1	ASN.ASP.GLN.	ASN.ASP.GLN.	✔	5	5	2	✘
6V38-CA-1	CA	Ca²⁺	D3N1Q1	ASN.ASP.GLN.	ASN.ASP.GLN.	✔	5	5	2	✔
6V38-CA-2	CA	Ca²⁺	D3N1Q1	ASN.ASP.GLN.	ASN.ASP.GLN.	✔	5	5	2	✘
6USP-MG-1	MG	Mg²⁺	D3G1	ASP.DG.	ASP.DG.	✘	4	4	2	✔
6VUY-NA-1	NA	Na⁺	G1T1	GLY.THR.	GLY.THR.	✔	2	2	2	✔
6VUY-NA-2	NA	Na⁺	G1T1	GLY.THR.	GLY.THR.	✔	2	2	2	✔
6VUY-NA-3	NA	Na⁺	G1T1	GLY.THR.	GLY.THR.	✔	2	2	2	✘