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
5D62-CA-3	CA	Ca²⁺	D3L1	ASP.LEU.	ASP.HOH.LEU.	✔	4	5	2	✔
5D62-CA-4	CA	Ca²⁺	D3L1	ASP.LEU.	ASP.HOH.LEU.	✔	4	5	2	✘
5CUJ-CA-1	CA	Ca²⁺	E3G3	GLU.GLY.	GLU.GLY.	✔	6	6	3	✘
5CUJ-CA-2	CA	Ca²⁺	E3G3	GLU.GLY.	GLU.GLY.	✔	6	6	3	✘
5CUM-CA-1	CA	Ca²⁺	E3G3	GLU.GLY.	GLU.GLY.	✔	6	6	3	✔
5CXF-CA-1	CA	Ca²⁺	D3	ASP.	ASP.	✔	3	3	3	✘
5CWR-CA-1	CA	Ca²⁺	C1D3	ASP.DC.	ASP.DC.DCP.HOH.	✘	4	6	2	✘
5CX1-CA-1	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✘
5CX1-CA-2	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✘
5DA5-CA-1	CA	Ca²⁺	E4	GLU.	GLU.HOH.	✔	4	7	2	✔
5DA5-CA-2	CA	Ca²⁺	E4	GLU.	GLU.HOH.	✔	4	7	2	✔
5DA5-CA-3	CA	Ca²⁺	E4	GLU.	GLU.HOH.	✔	4	7	2	✘
5DA5-CA-4	CA	Ca²⁺	E4	GLU.	ASP.HOH.	✔	4	4	2	✘
5DA5-CA-5	CA	Ca²⁺	E4	GLU.	GLU.HOH.	✔	4	7	2	✘
5DG7-CA-1	CA	Ca²⁺	D2E1T1	ASP.DT.GLU.	ASP.DT.GLU.TTP.	✘	4	5	2	✔
5B1X-CA-1	CA	Ca²⁺	D1E2N1S1X1	ASN.ASP.GLU.MAN.SER.	ASN.ASP.GLU.MAN.SER.	✘	6	6	2	✔
5BU8-CA-1	CA	Ca²⁺	N3Q3	ASN.GLN.	ASN.GLN.	✔	6	6	3	✘
5BU5-CA-1	CA	Ca²⁺	N1Q3	ASN.GLN.	ASN.GLN.	✔	4	4	3	✔
5BVZ-CA-1	CA	Ca²⁺	N3Q3	ASN.GLN.	ASN.GLN.	✔	6	6	3	✘
4RQW-CA-1	CA	Ca²⁺	D1E1	ASP.GLU.	ASP.GLU.	✔	2	2	2	✔