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
2GHT-MG-1	MG	Mg²⁺	D1N2X1	ASN.ASP.SEP.	ASN.ASP.HOH.SEP.	✘	4	6	2	✔
1M34-CA-1	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	5	2	✘
1M34-CA-2	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	5	2	✘
1M57-MG-1	MG	Mg²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✘	2	7	2	✔
1M56-MG-1	MG	Mg²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✘	2	5	2	✔
1MPO-MG-1	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	3	✘
1MPN-MG-1	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	3	✘
1MPM-MG-1	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	3	✔
1MPM-MG-2	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	3	✘
1MPM-MG-3	MG	Mg²⁺	D3	ASP.	ASP.	✔	3	3	3	✘
1MOW-MG-1	MG	Mg²⁺	A1D1G2	ASP.DA.DG.GLY.	ASP.DA.DG.GLY.HOH.	✘	4	6	3	✔
1MOW-MG-2	MG	Mg²⁺	A2D2G3	ASP.DA.DG.GLY.	ASP.DA.DG.GLY.	✘	7	7	3	✔
1MOW-MG-3	MG	Mg²⁺	A1D1G2	ASP.DA.DG.GLY.	ASP.DA.DG.GLY.HOH.	✘	4	5	3	✘
1MQ8-MG-1	MG	Mg²⁺	E1S2T1	GLU.SER.THR.	GLU.HOH.SER.THR.	✘	4	6	2	✔
1N2C-CA-1	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.	✔	4	4	2	✘
1N2C-CA-2	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.	✔	4	4	2	✘
1S77-MG-1	MG	Mg²⁺	D2X1	3DA.ASP.	3DA.ASP.HOH.	✘	3	4	2	✔
1RVC-MG-1	MG	Mg²⁺	A1Q1	DA.GLN.	DA.GLN.HOH.	✘	2	6	2	✔
1RVC-MG-2	MG	Mg²⁺	A1Q1	DA.GLN.	DA.GLN.HOH.	✘	2	6	2	✘
1RVC-MG-3	MG	Mg²⁺	A1D1E1	ASP.DA.GLU.	ASP.DA.GLU.HOH.	✘	3	5	2	✘