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
2CLU-CA-18	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-19	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-20	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-21	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-22	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-23	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-24	CA	Ca²⁺	D1Q1	ASP.GLN.	ASP.GLN.	✔	2	2	2	✘
2CLU-CA-25	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-26	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-27	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-28	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-29	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-30	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-31	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
2CLU-CA-32	CA	Ca²⁺	D3E3	ASP.GLU.	ASP.GLU.	✔	6	6	3	✘
3QU1-ZN-1	ZN	Zn²⁺	E1G1R1	ARG.GLU.GLY.	ARG.GLU.GLY.HOH.	✔	3	4	2	✔
3QU1-ZN-2	ZN	Zn²⁺	D2	ASP.	ASP.HOH.	✔	2	6	2	✔
3QU1-ZN-3	ZN	Zn²⁺	E1G1R1	ARG.GLU.GLY.	ARG.GLU.GLY.HOH.	✔	3	5	2	✔
3Q9J-ZN-1	ZN	Zn²⁺	X2	ORN.	ORN.	✔	2	2	2	✔
3Q9J-ZN-2	ZN	Zn²⁺	X2	ORN.	ORN.	✔	2	2	2	✘