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
4NCA-MG-1	MG	Mg²⁺	C1D2T1	ASP.DC.DT.	ASP.DC.DT.HOH.	✘	4	6	3	✔
4NCA-MG-2	MG	Mg²⁺	A1T1V1	DA.DT.VAL.	DA.DT.HOH.VAL.	✘	3	5	2	✘
4NCB-MG-1	MG	Mg²⁺	D2T1	ASP.DT.	ASP.DT.HOH.	✘	3	6	2	✔
4NCB-MG-2	MG	Mg²⁺	A1T1V1	DA.DT.VAL.	DA.DT.HOH.VAL.	✘	3	5	2	✔
4MPJ-MG-1	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
4MPJ-MG-2	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
4N47-MG-1	MG	Mg²⁺	A1T1V1	DA.DT.VAL.	DA.DT.VAL.	✘	3	3	2	✘
4N41-MG-1	MG	Mg²⁺	D2T1	ASP.DT.	ASP.DT.HOH.	✘	3	4	2	✔
4N41-MG-2	MG	Mg²⁺	A1T1V1	DA.DT.VAL.	DA.DT.HOH.VAL.	✘	3	4	2	✘
4MYO-MG-1	MG	Mg²⁺	N3	ASN.	ASN.HOH.	✔	3	6	3	✘
4MYO-MG-2	MG	Mg²⁺	N3	ASN.	ASN.HOH.	✔	3	6	3	✘
4MZU-MG-1	MG	Mg²⁺	N3	ASN.	ASN.HOH.	✔	3	6	3	✔
4MZU-MG-2	MG	Mg²⁺	N3	ASN.	ASN.HOH.	✔	3	6	3	✘
4NEH-MG-1	MG	Mg²⁺	E2S2	GLU.SER.	GLU.HOH.SER.	✘	4	6	2	✔
4NEN-MG-1	MG	Mg²⁺	E2S2	GLU.SER.	GLU.HOH.SER.	✘	4	6	2	✔
4JRP-MG-1	MG	Mg²⁺	D1T1	ASP.DT.	ASP.DT.HOH.	✘	2	5	2	✔
4JU9-MG-1	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
4JU9-MG-2	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
4JUB-MG-1	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
4JUB-MG-2	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘