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
4YH1-MG-1	MG	Mg²⁺	D1N2X1	4CG.ASN.ASP.	4CG.ASN.ASP.HOH.	✘	4	7	2	✔
4YKP-MG-1	MG	Mg²⁺	D2E2	ASP.GLU.	ASP.GLU.HOH.	✔	4	6	2	✘
4YKI-MG-1	MG	Mg²⁺	D2E2	ASP.GLU.	ASP.GLU.HOH.	✔	4	6	2	✔
4YKK-MG-1	MG	Mg²⁺	D1E2	ASP.GLU.	ASP.GLU.HOH.	✔	3	5	2	✔
4YMN-NA-1	NA	Na⁺	G1I1T1V1	DG.ILE.THR.VAL.	DG.ILE.THR.VAL.	✘	4	4	2	✔
4YMN-NA-2	NA	Na⁺	C1K1L1V1	DC.LEU.LYS.VAL.	DC.LEU.LYS.VAL.	✘	4	4	2	✘
4YNQ-MG-1	MG	Mg²⁺	C1G1N1	ASN.DC.DG.	ASN.DC.DG.HOH.	✘	3	4	2	✔
4YOY-MG-1	MG	Mg²⁺	D1E1T1	ASP.DT.GLU.	ASP.DT.GLU.HOH.	✘	3	4	2	✔
4Z1L-MG-1	MG	Mg²⁺	A1D2S1	ALA.ASP.SER.	ALA.ASP.SER.	✘	4	4	2	✘
4Z1L-MG-2	MG	Mg²⁺	A1D2	ALA.ASP.	ALA.ASP.	✘	3	3	2	✘
4Z1L-MG-3	MG	Mg²⁺	D2I1S1	ASP.ILE.SER.	ASP.ILE.SER.	✘	4	4	2	✘
6OBJ-MG-1	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✔
6OBJ-MG-2	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-3	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-4	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-5	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-6	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-7	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-8	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘
6OBJ-MG-9	MG	Mg²⁺	C1F1	DC.PHE.	DC.PHE.	✘	2	2	2	✘