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
3N78-MG-1	MG	Mg²⁺	C1D1F1	ASP.DC.PHE.	ASP.DC.HOH.PHE.	✘	3	4	2	✔
3N78-MG-2	MG	Mg²⁺	C1D1F1	ASP.DC.PHE.	ASP.DC.PHE.	✘	3	3	2	✔
3N6Q-MG-1	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✔
3N6Q-MG-2	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-3	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘
3N6Q-MG-4	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘
3N6Q-MG-5	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘
3N6Q-MG-6	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-7	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-8	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3N6Q-MG-9	MG	Mg²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
3NGO-MG-1	MG	Mg²⁺	A1D1	ASP.DA.	ASP.DA.	✘	2	2	2	✔
3NGO-MG-2	MG	Mg²⁺	A1E1	DA.GLU.	DA.GLU.HOH.	✘	2	5	2	✔
3NH1-MG-1	MG	Mg²⁺	D1E1G1	ASP.DG.GLU.	ASP.DG.GLU.	✘	3	3	2	✔
3NH1-MG-2	MG	Mg²⁺	D1E1G1	ASP.DG.GLU.	ASP.DG.GLU.	✘	3	3	2	✘
3NH1-MG-3	MG	Mg²⁺	D1G2	ASP.DG.	ASP.DG.HOH.	✘	3	6	2	✘
3NH1-MG-4	MG	Mg²⁺	D1G2	ASP.DG.	ASP.DG.HOH.	✘	3	6	2	✘
3NL3-MG-1	MG	Mg²⁺	D2T1	ASP.THR.	ASP.THR.	✔	3	3	2	✔
3NL3-MG-2	MG	Mg²⁺	D1T1	ASP.THR.	ASP.THR.	✔	2	2	2	✔
3NL3-MG-3	MG	Mg²⁺	A1D1T1	ALA.ASP.THR.	ALA.ASP.THR.	✔	3	3	2	✘