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
2W94-CA-3	CA	Ca²⁺	D3Q1	ASP.GLN.	ASP.GLN.HOH.	✔	4	6	2	✘
2W95-CA-1	CA	Ca²⁺	D3Q1	ASP.GLN.	ASP.GLN.HOH.	✔	4	6	2	✘
2W95-CA-2	CA	Ca²⁺	D3Q1	ASP.GLN.	ASP.GLN.HOH.	✔	4	6	2	✘
2W95-CA-3	CA	Ca²⁺	D3Q1	ASP.GLN.	ASP.GLN.HOH.	✔	4	6	2	✘
3MDO-CA-1	CA	Ca²⁺	D1E1	ASP.GLU.	ASP.GLU.HOH.	✔	2	5	2	✔
3MIN-CA-1	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✘
3MIN-CA-2	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	5	2	✘
3MIP-CA-1	CA	Ca²⁺	C1D1G2	ASP.DC.DG.GLY.	ASP.DC.DG.GLY.	✘	4	4	4	✔
3MIP-CA-2	CA	Ca²⁺	A1D1G2	ASP.DA.DG.GLY.	ASP.DA.DG.GLY.HOH.	✘	4	6	4	✘
3MIP-CA-3	CA	Ca²⁺	D2G2	ASP.DG.	ASP.DG.	✘	4	4	4	✘
3MIS-CA-1	CA	Ca²⁺	C1D1G2	ASP.DC.DG.GLY.	ASP.DC.DG.GLY.HOH.	✘	4	5	4	✔
3MIS-CA-2	CA	Ca²⁺	A1D1G2	ASP.DA.DG.GLY.	ASP.DA.DG.GLY.HOH.	✘	4	6	4	✔
3MIS-CA-3	CA	Ca²⁺	C1D2G2	ASP.DC.DG.	ASP.DC.DG.	✘	5	5	4	✔
3ML0-CA-1	CA	Ca²⁺	D3E1V1	ASP.GLU.VAL.	ASP.GLU.VAL.	✘	5	5	2	✔
3MK7-CA-1	CA	Ca²⁺	E1S1	GLU.SER.	GLU.HEM.SER.	✘	2	4	2	✔
3MLI-CA-1	CA	Ca²⁺	E2	GLU.	GLU.	✔	2	2	2	✔
3MLI-CA-2	CA	Ca²⁺	E3	GLU.	GLU.	✔	3	3	2	✘
3MMZ-CA-1	CA	Ca²⁺	A2G2	ALA.GLY.	ALA.GLY.HOH.	✔	4	7	2	✔
3MMZ-CA-2	CA	Ca²⁺	A2G2	ALA.GLY.	ALA.GLY.HOH.	✔	4	7	2	✘
3MMZ-CA-3	CA	Ca²⁺	A2G2	ALA.GLY.	ALA.GLY.HOH.	✔	4	7	2	✘