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
4K4I-CA-3	CA	Ca²⁺	C1D3	ASP.DC.	1RY.ASP.DC.	✘	4	5	2	✘
5TB9-MN-1	MN	Mn²⁺	C1D3	ASP.DC.	1RY.ASP.DC.HOH.	✘	4	6	2	✘
4K4H-CA-2	CA	Ca²⁺	A2I1S1	ALA.DA.ILE.SER.	1RZ.ASP.DC.HOH.	✘	4	6	2	✔
5U2R-CA-1	CA	Ca²⁺	C1D3	ASP.DC.	1S0.ASP.DC.HOH.	✘	4	6	2	✔
4K4G-CA-1	CA	Ca²⁺	C1D3	ASP.DC.	1S0.ASP.DC.HOH.	✘	4	6	2	✘
3HKT-ZN-1	ZN	Zn²⁺	H3X1	1SD.HIS.	1SD.HIS.	✘	4	4	2	✔
6HVL-CO-1	CO	Co²⁺	D1E1	ASP.GLU.	2BA.ASP.GLU.	✔	2	3	2	✔
6HVL-CO-2	CO	Co²⁺	D1E1	ASP.GLU.	2BA.ASP.GLU.	✔	2	3	2	✘
3GIJ-CA-1	CA	Ca²⁺	D1E1X1	2DA.ASP.GLU.	2DA.ASP.GLU.HOH.	✘	3	5	2	✔
4V44-NA-1	NA	Na⁺	D1F1X1	2FG.ASP.PHE.	2FG.ASP.HOH.PHE.	✘	3	4	2	✔
3DCQ-CA-1	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	2G0.ASN.ASP.GLY.	✔	5	6	2	✘
3DCQ-CA-2	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	2G0.ASN.ASP.GLY.	✔	5	6	2	✘
3DCQ-CA-3	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	2G0.ASN.ASP.GLY.	✔	5	6	2	✘
3DCQ-CA-4	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	2G0.ASN.ASP.GLY.	✔	5	6	2	✘
3S2H-MG-1	MG	Mg²⁺	D3X1	2IA.ASP.	2IA.ASP.	✘	4	4	2	✔
6SA0-MN-1	MN	Mn²⁺	D3G1	ASP.DG.	2KH.ASP.DG.	✘	4	5	2	✔
7RXW-K-1	K	K⁺	A1D1E1	ALA.ASP.GLU.	2PN.ALA.ASP.GLU.HOH.	✔	3	5	2	✔
7RXW-K-2	K	K⁺	A1D1E1	ALA.ASP.GLU.	2PN.ALA.ASP.GLU.HOH.	✔	3	5	2	✘
5UGO-CA-1	CA	Ca²⁺	C1D2	ASP.DC.	2PN.ASP.DC.HOH.	✘	3	5	2	✔
4Z7I-ZN-1	ZN	Zn²⁺	E1X1	2X0.GLU.	2X0.GLU.	✘	2	2	2	✔