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
4AD9-ZN-1	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	3	2	✔
4ASQ-ZN-1	ZN	Zn²⁺	E1R1	ARG.GLU.	ARG.GLU.	✘	2	2	2	✘
4ASR-ZN-1	ZN	Zn²⁺	H2R1	ARG.HIS.	ARG.HIS.	✘	3	3	2	✔
4ATY-ZN-1	ZN	Zn²⁺	H3	HIS.	HIS.	✔	3	3	2	✔
4B7K-ZN-1	ZN	Zn²⁺	D1S1	ASP.SER.	ASP.OGA.SER.	✘	2	3	2	✔
4B7K-ZN-2	ZN	Zn²⁺	D1S1	ASP.SER.	ASP.OGA.SER.	✘	2	3	2	✔
4BHW-ZN-1	ZN	Zn²⁺	C2	CYS.	CYS.	✔	2	2	2	✔
4KYW-CA-1	CA	Ca²⁺	D1E1L1T1	ASP.DT.GLU.LEU.	ASP.DT.GLU.HOH.LEU.	✘	4	6	2	✔
4KYH-ZN-1	ZN	Zn²⁺	H1Q1	GLN.HIS.	GLN.HIS.	✔	2	2	2	✘
4KYH-ZN-2	ZN	Zn²⁺	H1Q1	GLN.HIS.	GLN.HIS.	✔	2	2	2	✘
1Z83-ZN-1	ZN	Zn²⁺	D1E3	ASP.GLU.	ASP.GLU.	✔	4	4	2	✔
1ZFP-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.	✔	2	2	2	✔
1ZNI-ZN-1	ZN	Zn²⁺	H3	HIS.	HIS.	✔	3	3	3	✘
1ZQT-NA-1	NA	Na⁺	T2V1	DT.THR.VAL.	DT.HOH.THR.VAL.	✘	3	4	2	✘
1ZVL-ZN-1	ZN	Zn²⁺	C4	CYS.	CYS.	✔	4	4	2	✘
1ZZU-ZN-1	ZN	Zn²⁺	C4	CYS.	CYS.	✔	4	4	2	✘
1ZZT-ZN-1	ZN	Zn²⁺	C4	CYS.	CYS.	✔	4	4	2	✘
1ZZQ-ZN-1	ZN	Zn²⁺	C4	CYS.	CYS.	✔	4	4	2	✘
1JOB-ZN-1	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	4	2	✘
1JOB-ZN-2	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	4	2	✘