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
1MCZ-MG-1	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
1MCZ-MG-2	MG	Mg²⁺	L2N2R2	ARG.ASN.LEU.	ARG.ASN.LEU.	✔	6	6	2	✘
6I4J-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	6	2	✔
6I4I-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	6	2	✘
6I4L-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	6	2	✘
6I4M-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	6	2	✘
6I4D-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	5	2	✘
6I4F-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	6	2	✘
6I4E-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.	✘	4	4	2	✔
6I4G-CA-1	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✘	4	5	2	✘
6HUB-MG-1	MG	Mg²⁺	D2H1	ASP.HIS.	ASP.HIS.	✘	3	3	2	✘
6HUB-MG-2	MG	Mg²⁺	A1D2	ALA.ASP.	ALA.ASP.	✘	3	3	2	✔
6HUB-MG-3	MG	Mg²⁺	D2I1	ASP.ILE.	ASP.ILE.	✘	3	3	2	✔
6HTR-MG-1	MG	Mg²⁺	A1D2S1	ALA.ASP.SER.	ALA.ASP.SER.	✘	4	4	2	✘
6HTR-MG-2	MG	Mg²⁺	D2I1S1	ASP.ILE.SER.	ASP.ILE.SER.	✘	4	4	2	✔
6HTR-MG-3	MG	Mg²⁺	A1D2	ALA.ASP.	ALA.ASP.	✘	3	3	2	✔
6HTB-MG-1	MG	Mg²⁺	A1D2S1	ALA.ASP.SER.	ALA.ASP.SER.	✘	4	4	2	✔
6HTB-MG-2	MG	Mg²⁺	A1D2S1	ALA.ASP.SER.	ALA.ASP.SER.	✘	4	4	2	✘
6HTB-MG-3	MG	Mg²⁺	D2I1S1	ASP.ILE.SER.	ASP.ILE.SER.	✘	4	4	2	✔
6HVA-MG-1	MG	Mg²⁺	A1D2	ALA.ASP.	ALA.ASP.	✘	3	3	2	✘