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
3LQF-MG-1	MG	Mg²⁺	W2	TRP.	HOH.TRP.	✔	2	6	2	✔
3LQF-MG-2	MG	Mg²⁺	W2	TRP.	HOH.TRP.	✔	2	6	2	✔
3LSN-MG-1	MG	Mg²⁺	E2	GLU.	GLU.HOH.	✔	2	6	2	✔
7JRF-CA-1	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✔
7JRF-CA-2	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✘
4H19-CA-1	CA	Ca²⁺	D2	ASP.	ASP.	✔	2	2	2	✔
4H19-CA-2	CA	Ca²⁺	H2	HIS.	HIS.	✔	2	2	2	✘
4H19-CA-3	CA	Ca²⁺	D2	ASP.	ASP.	✔	2	2	2	✘
6FB1-MG-1	MG	Mg²⁺	A1D1G1S1	ASP.DA.DG.SER.	ASP.DA.DG.SER.	✘	4	4	4	✔
6FB1-MG-2	MG	Mg²⁺	A2C1D2G1	ASP.DA.DC.DG.	ASP.DA.DC.DG.	✘	6	6	6	✔
6FBO-K-1	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	6	2	✘
6FBO-K-2	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	6	2	✘
6FBO-K-3	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	6	2	✘
6FBO-K-4	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	6	2	✘
6FBN-K-1	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	5	2	✘
6FBP-K-1	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	5	2	✘
6FBP-K-2	K	K⁺	A1D1E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.PPK.	✔	3	5	2	✘
6FBC-MN-1	MN	Mn²⁺	D2X1	ASP.D4B.	ASP.D4B.HOH.XG4.	✘	3	6	2	✔
6FBE-MN-1	MN	Mn²⁺	C1D2	ASP.DC.	ASP.DC.HOH.XG4.	✘	3	6	2	✔
6FBD-MN-1	MN	Mn²⁺	C1D2E1	ASP.DC.GLU.	ASP.DC.GLU.HOH.XG4.	✘	4	6	2	✘