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
4HAD-NA-2	NA	Na⁺	A1C1I1Q1R1	ALA.ARG.CYS.GLN.ILE.	ALA.ARG.CYS.GLN.ILE.	✔	5	5	2	✔
4HAD-NA-3	NA	Na⁺	A1C1I1Q1R1	ALA.ARG.CYS.GLN.ILE.	ALA.ARG.CYS.GLN.ILE.	✔	5	5	2	✘
4HAD-NA-4	NA	Na⁺	A1C1I1Q1R1	ALA.ARG.CYS.GLN.ILE.	ALA.ARG.CYS.GLN.ILE.	✔	5	5	2	✘
6C0G-K-2	K	K⁺	A1C1L3	ALA.CYS.LEU.	ALA.CYS.LEU.	✔	5	5	2	✘
6C0Y-K-1	K	K⁺	A1C1L3S1	ALA.CYS.LEU.SER.	ALA.CYS.LEU.SER.	✔	6	6	2	✔
6C0Y-K-2	K	K⁺	A1C1L3S1	ALA.CYS.LEU.SER.	ALA.CYS.LEU.SER.	✔	6	6	2	✔
6C0H-K-1	K	K⁺	A1C1L3S1	ALA.CYS.LEU.SER.	ALA.CYS.LEU.SER.	✔	6	6	2	✔
6C0H-K-2	K	K⁺	A1C1L3S1	ALA.CYS.LEU.SER.	ALA.CYS.LEU.SER.	✔	6	6	2	✔
6C0G-K-1	K	K⁺	A1C1L3S1	ALA.CYS.LEU.SER.	ALA.CYS.LEU.SER.	✔	6	6	2	✘
5GQ9-MG-3	MG	Mg²⁺	A1C1V1	DA.DC.VAL.	DA.DC.VAL.	✘	3	3	2	✔
5GQ9-MG-4	MG	Mg²⁺	A1C1V1	DA.DC.VAL.	DA.DC.VAL.	✘	3	3	2	✘
7SDG-AG-1	AG	Ag⁺	A1C2	DA.DC.	DA.DC.	✘	3	3	2	✔
7SDG-AG-2	AG	Ag⁺	A1C2	DA.DC.	DA.DC.	✘	3	3	2	✘
7SDG-AG-3	AG	Ag⁺	A1C2	DA.DC.	DA.DC.	✘	3	3	2	✘
7RCG-CA-1	CA	Ca²⁺	A1C2D1	ALA.ASP.DC.	ALA.ASP.DC.HOH.	✘	4	6	3	✔
7RCD-CA-1	CA	Ca²⁺	A1C2D1	ALA.ASP.DC.	ALA.ASP.DC.HOH.	✘	4	6	3	✔
7RCC-CA-3	CA	Ca²⁺	A1C2D1	ALA.ASP.DC.	ALA.ASP.DC.HOH.	✘	4	5	3	✘
4UNA-MN-3	MN	Mn²⁺	A1C2D1E1G1	ASP.DA.DC.DG.GLU.	ASP.DA.DC.DG.GLU.	✘	6	6	4	✔
4UNB-MN-2	MN	Mn²⁺	A1C2D1E1G1	ASP.DA.DC.DG.GLU.	ASP.DA.DC.DG.GLU.	✘	6	6	5	✘
4UNC-MN-2	MN	Mn²⁺	A1C2D1E1G1	ASP.DA.DC.DG.GLU.	ASP.DA.DC.DG.GLU.	✘	6	6	5	✔