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
3S5U-CA-3	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.	✔	4	4	2	✔
3S5U-CA-4	CA	Ca²⁺	D2E2	ASP.GLU.	ASP.GLU.	✔	4	4	2	✘
3S5U-CA-5	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✔	4	6	2	✘
3S5U-CA-6	CA	Ca²⁺	D2E2	ASP.GLU.	ASP.GLU.	✔	4	4	2	✘
3S5U-CA-7	CA	Ca²⁺	A1D1E1G1	ALA.ASP.GLU.GLY.	ALA.ASP.GLU.GLY.HOH.	✔	4	6	2	✘
3S5U-CA-8	CA	Ca²⁺	D2E2	ASP.GLU.	ASP.GLU.	✔	4	4	2	✘
3SGD-CA-1	CA	Ca²⁺	D2	ASP.	ASP.HOH.	✘	2	6	2	✔
2VBO-CA-1	CA	Ca²⁺	A2D1G1	ASP.DA.GLY.	ASP.DA.GLY.HOH.	✘	4	6	4	✔
2VBO-CA-2	CA	Ca²⁺	A2D1G1	ASP.DA.GLY.	ASP.DA.GLY.HOH.	✘	4	6	4	✔
2VBJ-CA-1	CA	Ca²⁺	A3D1	ALA.ASP.DA.	ALA.ASP.DA.HOH.	✘	4	6	4	✘
2VBJ-CA-2	CA	Ca²⁺	A2D1G1	ASP.DA.GLY.	ASP.DA.GLY.HOH.	✘	4	6	4	✘
2VF9-CA-1	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✔
2VF9-CA-2	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-3	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-4	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-5	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-6	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-7	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-8	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘
2VF9-CA-9	CA	Ca²⁺	Q1Y2	GLN.TYR.	GLN.TYR.	✔	3	3	3	✘