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
7TG0-AG-1	AG	Ag⁺	T2	DT.	DT.	✘	2	2	2	✔
7TG0-AG-2	AG	Ag⁺	T2	DT.	DT.	✘	2	2	2	✘
7TG0-AG-3	AG	Ag⁺	T2	DT.	DT.	✘	2	2	2	✘
1YU2-MG-1	MG	Mg²⁺	F3	PHE.	HOH.PHE.	✔	3	6	3	✔
5WW5-MG-1	MG	Mg²⁺	D3N3	ASN.ASP.	ASN.ASP.	✔	6	6	3	✘
5WW5-MG-2	MG	Mg²⁺	D3N3	ASN.ASP.	ASN.ASP.	✔	6	6	3	✘
5WW5-MG-3	MG	Mg²⁺	D3N3	ASN.ASP.	ASN.ASP.	✔	6	6	3	✘
5WW5-MG-4	MG	Mg²⁺	D3N3	ASN.ASP.	ASN.ASP.	✔	6	6	3	✘
7ZDZ-K-1	K	K⁺	D2	ASP.	ASP.	✔	2	2	2	✔
6LAB-K-1	K	K⁺	N2	ASN.	ASN.	✔	2	2	2	✔
6LAB-K-2	K	K⁺	N2	ASN.	ASN.	✔	2	2	2	✔
7MHR-K-1	K	K⁺	T4	THR.	THR.	✔	4	4	4	✔
7MHR-K-2	K	K⁺	Y4	TYR.	TYR.	✔	4	4	4	✘
7MHR-K-3	K	K⁺	T4V4	THR.VAL.	THR.VAL.	✔	8	8	4	✔
7MHR-K-4	K	K⁺	T4V4	THR.VAL.	THR.VAL.	✔	8	8	4	✘
2R34-MN-1	MN	Mn²⁺	H3	HIS.	HIS.	✔	3	3	3	✘
2R34-MN-2	MN	Mn²⁺	H3	HIS.	HIS.	✔	3	3	3	✘
2CFV-NI-1	NI	Ni²⁺	H6	HIS.	HIS.	✔	6	6	3	✘
2CFV-NI-2	NI	Ni²⁺	H3K1	HIS.LYS.	HIS.LYS.	✔	4	4	2	✔
2CFV-NI-3	NI	Ni²⁺	H3K1	HIS.LYS.	HIS.LYS.	✔	4	4	2	✘