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
3VW9-ZN-1	ZN	Zn²⁺	E2Q1	GLN.GLU.	GLN.GLU.HPJ.	✔	3	4	2	✔
3WGH-ZN-1	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	4	2	✔
3WGH-ZN-2	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	4	2	✘
3WON-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✔
3WON-ZN-2	ZN	Zn²⁺	E2	GLU.	GLU.	✔	2	2	2	✔
3WUP-NA-1	NA	Na⁺	S3	SER.	HOH.SER.	✔	3	6	3	✔
2YPT-ZN-1	ZN	Zn²⁺	E1S1	GLU.SER.	GLU.SER.	✘	2	2	2	✔
2YR2-ZN-1	ZN	Zn²⁺	D2E2	ASP.GLU.	ASP.GLU.	✔	4	4	2	✔
2Z45-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.HOH.	✔	2	4	2	✔
2Z45-ZN-2	ZN	Zn²⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✔
2XXF-CU-1	CU	Cu²⁺	H3	HIS.	HIS.	✔	3	3	2	✘
2XXF-CU-2	CU	Cu²⁺	H3	HIS.	HIS.	✔	3	3	2	✘
2XYB-NA-1	NA	Na⁺	G1N2	ASN.GLY.	ASN.GLY.HOH.	✔	3	5	2	✔
2XYB-NA-2	NA	Na⁺	G1N2	ASN.GLY.	ASN.GLY.HOH.	✔	3	5	2	✘
2Z6M-CA-1	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2Z6M-CA-2	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2Z6M-CA-3	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2Z6M-CA-4	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2Z6M-CA-5	CA	Ca²⁺	D2E2	ASP.GLU.	ASP.GLU.	✔	4	4	2	✘
2Z6M-CA-6	CA	Ca²⁺	D2E2	ASP.GLU.	ASP.GLU.	✔	4	4	2	✘