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
1YCG-ZN-3	ZN	Zn²⁺	H1S1	HIS.SER.	HIS.SER.	✔	2	2	2	✔
1YCG-ZN-4	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.	✔	2	2	2	✔
1YCG-ZN-5	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.	✔	2	2	2	✘
1YCG-ZN-6	ZN	Zn²⁺	H1S1	HIS.SER.	HIS.SER.	✔	2	2	2	✘
1YHC-ZN-1	ZN	Zn²⁺	G1H1	GLY.HIS.	GLY.HIS.	✔	2	2	2	✔
2KZZ-ZN-1	ZN	Zn²⁺	C1D1G1	ASP.DC.DG.	ASP.DC.DG.	✘	3	3	2	✔
2KZZ-ZN-2	ZN	Zn²⁺	D2E1G1	ASP.DG.GLU.	ASP.DG.GLU.	✘	4	4	2	✔
2KZM-MN-1	MN	Mn²⁺	C1D1G1	ASP.DC.DG.	ASP.DC.DG.	✘	3	3	2	✔
1SGF-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.	✘	2	2	2	✔
1SGF-ZN-2	ZN	Zn²⁺	H2	HIS.	HIS.	✘	2	2	2	✘
1T0A-CO-1	CO	Co²⁺	D1T1	ASP.THR.	ASP.HOH.THR.	✔	2	6	2	✔
1T0A-CO-2	CO	Co²⁺	D1T1	ASP.THR.	ASP.HOH.THR.	✔	2	5	2	✘
1T0A-CO-3	CO	Co²⁺	D1T1	ASP.THR.	ASP.HOH.THR.	✔	2	5	2	✘
1T92-ZN-1	ZN	Zn²⁺	E2	GLU.	GLU.HOH.	✔	2	4	2	✔
1THJ-ZN-1	ZN	Zn²⁺	H3	HIS.	HIS.	✔	3	3	2	✘
1U10-ZN-1	ZN	Zn²⁺	D2	ASP.	ASP.	✔	2	2	2	✔
1U2W-ZN-1	ZN	Zn²⁺	H2	HIS.	HIS.	✔	2	2	2	✔
1U2W-ZN-2	ZN	Zn²⁺	D1E1	ASP.GLU.	ASP.GLU.	✔	2	2	2	✘
1TRZ-NA-1	NA	Na⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✔
1TRZ-NA-2	NA	Na⁺	E2	GLU.	GLU.HOH.	✔	2	3	2	✘