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
3KD5-MG-1	MG	Mg²⁺	D2L1X1	4DG.ASP.LEU.	4DG.ASP.LEU.PPF.	✘	4	5	2	✔
6W25-CA-1	CA	Ca²⁺	D3E1X1	4J2.ASP.GLU.	4J2.ASP.GLU.	✘	5	5	2	✔
5BPC-MN-1	MN	Mn²⁺	E1X1	4U3.GLU.	ASP.F2A.HOH.	✘	2	6	2	✔
4AQX-MG-1	MG	Mg²⁺	A1D2G2X1	5CM.ASP.DA.DG.	5CM.ASP.DA.DG.	✘	6	6	6	✔
4AQU-CA-1	CA	Ca²⁺	D1G2X1	5CM.ASP.DG.GLY.	5CM.ASP.DG.GLY.HOH.	✘	4	6	4	✔
7SDJ-AG-1	AG	Ag⁺	A1X2	5CM.DA.	5CM.DA.	✘	3	3	2	✘
7SDJ-AG-2	AG	Ag⁺	A1X2	5CM.DA.	5CM.DA.	✘	3	3	2	✘
7SDJ-AG-3	AG	Ag⁺	A1X2	5CM.DA.	5CM.DA.	✘	3	3	2	✘
7SDQ-AG-3	AG	Ag⁺	A1X1	5CM.DA.	5CM.DA.	✘	2	2	2	✘
7SDK-AG-1	AG	Ag⁺	A2X2	5CM.DA.IMC.	5CM.DA.IMC.	✘	4	4	2	✘
7SDK-AG-2	AG	Ag⁺	A2X2	5CM.DA.IMC.	5CM.DA.IMC.	✘	4	4	2	✘
7SE2-AG-1	AG	Ag⁺	C1X1	5CM.DC.	5CM.DC.	✘	2	2	2	✔
7SE2-AG-2	AG	Ag⁺	C1X1	5CM.DC.	5CM.DC.	✘	2	2	2	✘
7SE2-AG-3	AG	Ag⁺	C1X1	5CM.DC.	5CM.DC.	✘	2	2	2	✔
7SDQ-AG-1	AG	Ag⁺	X2	5CM.DU.	5CM.DU.	✘	2	2	2	✘
7SDQ-AG-2	AG	Ag⁺	X2	5CM.DU.	5CM.DU.	✘	2	2	2	✘
7SE5-HG-1	HG	Hg²⁺	X2	5IU.	5IU.	✘	2	2	2	✔
7SE5-HG-2	HG	Hg²⁺	X2	5IU.	5IU.	✘	2	2	2	✘
7SDO-AG-1	AG	Ag⁺	C1X1	5IU.DC.	5IU.DC.	✘	2	2	2	✔
7SDO-AG-2	AG	Ag⁺	C1X1	5IU.DC.	5IU.DC.	✘	2	2	2	✘