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
2NQJ-ZN-1	ZN	Zn²⁺	E1X1	3DR.GLU.	3DR.GLU.	✘	2	2	2	✔
2NQJ-ZN-2	ZN	Zn²⁺	D1E1Q1X1	3DR.ASP.GLN.GLU.	3DR.ASP.GLN.GLU.	✘	4	4	2	✔
2NQJ-ZN-3	ZN	Zn²⁺	C1D1X1	3DR.ASP.DC.	3DR.ASP.DC.	✘	3	3	2	✔
2NQ9-ZN-1	ZN	Zn²⁺	D1E2X1	3DR.ASP.GLU.	3DR.ASP.GLU.	✘	4	4	2	✔
2NQ9-ZN-2	ZN	Zn²⁺	D1T1X1	3DR.ASP.DT.	3DR.ASP.DT.	✘	3	3	3	✔
2O3K-CA-1	CA	Ca²⁺	E1Q1	GLN.GLU.	GLN.GLU.HOH.	✔	2	4	2	✘
2O3Z-ZN-1	ZN	Zn²⁺	G1H1	GLY.HIS.	GLY.HIS.	✔	2	2	2	✘
2O6D-ZN-1	ZN	Zn²⁺	H2	HIS.	HIS.	✔	2	2	2	✔
2O6D-ZN-2	ZN	Zn²⁺	H2	HIS.	HIS.	✔	2	2	2	✘
2NVV-ZN-1	ZN	Zn²⁺	H2	HIS.	HIS.	✔	2	2	2	✔
2NVV-ZN-2	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	4	2	✔
2O8M-NA-1	NA	Na⁺	G1L1T1	GLY.LEU.THR.	ALA.HOH.	✘	3	5	2	✔
2OM1-ZN-1	ZN	Zn²⁺	H3	HIS.	HIS.SCN.	✔	3	4	3	✘
2OM1-ZN-2	ZN	Zn²⁺	H3	HIS.	HIS.SCN.	✔	3	4	3	✘
2OLZ-ZN-1	ZN	Zn²⁺	H3	HIS.	HIS.SCN.	✔	3	4	3	✘
2OLZ-ZN-2	ZN	Zn²⁺	H3	HIS.	HIS.SCN.	✔	3	4	3	✘
2MGT-ZN-1	ZN	Zn²⁺	H2	HIS.	HIS.	✔	2	2	2	✔
2HX4-ZN-1	ZN	Zn²⁺	C4	CYS.	CYS.	✔	4	4	2	✘
2HZC-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.HOH.	✔	2	6	2	✔
2IER-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.	✔	2	2	2	✘