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
1P5W-MG-115	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	2	✘
1P5W-MG-116	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	2	✘
1P5W-MG-117	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	2	✘
1P5W-MG-118	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	2	✘
1P5W-MG-119	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	2	✘
1P5W-MG-120	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	2	✘
1P8K-MG-1	MG	Mg²⁺	A2D1T1	ALA.ASP.DA.DT.	ALA.ASP.DA.DT.	✘	4	4	3	✔
1P8K-MG-2	MG	Mg²⁺	C2E1G1	DC.GLU.GLY.	DC.GLU.GLY.	✘	4	4	3	✔
1P8F-MG-1	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✔
1P8F-MG-2	MG	Mg²⁺	D2	ASP.	ASP.HOH.ICT.	✔	2	5	2	✘
1PKG-MG-1	MG	Mg²⁺	D1N1X1	ASN.ASP.PTR.	ADP.ASN.ASP.PTR.	✔	3	4	2	✔
1PKG-MG-2	MG	Mg²⁺	D1N1X1	ASN.ASP.PTR.	ADP.ASN.ASP.PTR.	✔	3	4	2	✔
1PKG-MG-3	MG	Mg²⁺	D1N1X1	ASN.ASP.PTR.	ADP.ASN.ASP.PTR.	✔	3	4	2	✔
1PKG-MG-4	MG	Mg²⁺	D1N1X1	ASN.ASP.PTR.	ADP.ASN.ASP.PTR.	✔	3	4	2	✘
2BCR-NA-1	NA	Na⁺	A2I1S1	ALA.DA.ILE.SER.	HOH.SER.	✘	4	6	2	✘
2BCQ-NA-1	NA	Na⁺	A2I1S1	ALA.DA.ILE.SER.	ALA.DA.HOH.ILE.SER.	✘	4	6	2	✔
2BCV-NA-1	NA	Na⁺	A2I1S1	ALA.DA.ILE.SER.	ALA.DA.HOH.ILE.SER.	✘	4	6	2	✘
2BCS-NA-1	NA	Na⁺	A2I1S1	ALA.DA.ILE.SER.	ALA.DA.HOH.ILE.SER.	✘	4	6	2	✘
2C13-K-1	K	K⁺	D2L1	ASP.LEU.	ASP.HOH.LEU.	✔	3	5	2	✘
2C13-K-2	K	K⁺	D2L1	ASP.LEU.	ASP.HOH.LEU.	✔	3	5	2	✔