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
3GO2-MG-5	MG	Mg²⁺	P1T1Y1	PRO.THR.TYR.	HOH.PRO.THR.TYR.	✔	3	5	2	✘
3GO2-MG-6	MG	Mg²⁺	P1T1Y1	PRO.THR.TYR.	HOH.PRO.THR.TYR.	✔	3	5	2	✘
3GO2-MG-7	MG	Mg²⁺	P1T1Y1	PRO.THR.TYR.	HOH.PRO.THR.TYR.	✔	3	5	2	✘
3GO2-MG-8	MG	Mg²⁺	P1T1Y1	PRO.THR.TYR.	HOH.PRO.THR.TYR.	✔	3	5	2	✘
3NZG-MG-2	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3NZG-MG-3	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3NZG-MG-4	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3NZG-MG-5	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3NZG-MG-6	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3NZG-MG-7	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3NZG-MG-8	MG	Mg²⁺	A1S1	ALA.SER.	ALA.HOH.SER.	✔	2	6	2	✘
3P1O-MG-1	MG	Mg²⁺	E1K1Q1	GLN.GLU.LYS.	GLN.GLU.HOH.LYS.	✔	3	5	2	✘
3P1O-MG-2	MG	Mg²⁺	E1K1Q1	GLN.GLU.LYS.	GLN.GLU.HOH.LYS.	✔	3	5	2	✘
3OS0-MG-2	MG	Mg²⁺	D2G1	ASP.DG.	ASP.DG.HOH.	✘	3	6	2	✘
3OS1-MG-2	MG	Mg²⁺	C1D1E1	ASP.DC.GLU.	ASP.DC.GLU.	✘	3	3	2	✘
3OYZ-K-2	K	K⁺	G1M1S2	GLY.MET.SER.	GLY.MET.SER.	✔	4	4	2	✘
3OYZ-K-3	K	K⁺	G1M1S2	GLY.MET.SER.	GLY.MET.SER.	✔	4	4	2	✘
3OYZ-K-4	K	K⁺	G1M1S2	GLY.MET.SER.	GLY.MET.SER.	✔	4	4	2	✘
3OYZ-K-5	K	K⁺	G1M1S2	GLY.MET.SER.	GLY.MET.SER.	✔	4	4	2	✘
3OYZ-K-6	K	K⁺	G1M1S2	GLY.MET.SER.	GLY.MET.SER.	✔	4	4	2	✘