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
4EMT-CA-1	CA	Ca²⁺	A1D2E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.	✔	4	6	2	✔
4EMT-CA-2	CA	Ca²⁺	A1D2E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.	✔	4	6	2	✘
4EMU-CA-1	CA	Ca²⁺	A1D2E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.	✔	4	6	2	✘
4EMU-CA-2	CA	Ca²⁺	A1D2E1	ALA.ASP.GLU.	ALA.ASP.GLU.HOH.	✔	4	6	2	✘
3P5D-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
3P5G-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.FUC.GLU.	ASN.ASP.FUC.GLU.	✘	6	6	2	✔
3P7H-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLC.GLU.	ASN.ASP.GLC.GLU.	✘	6	6	2	✔
4WB4-CA-1	CA	Ca²⁺	E4Q2	GLN.GLU.	GLN.GLU.	✔	6	6	4	✔
4WBB-CA-1	CA	Ca²⁺	D1X1	ASP.SEP.	ADP.ASP.HOH.SEP.	✘	2	4	2	✔
4WFG-CA-1	CA	Ca²⁺	E1G1	GLU.GLY.	GLU.GLY.HOH.	✔	2	4	2	✘
4WFH-CA-1	CA	Ca²⁺	D1E1G1	ASP.GLU.GLY.	ASP.GLU.GLY.HOH.	✔	3	5	2	✘
4WIZ-CA-1	CA	Ca²⁺	D2E1S1	ASP.GLU.SER.	ASP.GLU.SER.	✔	4	4	2	✔
4WIZ-CA-2	CA	Ca²⁺	D2E1S1	ASP.GLU.SER.	ASP.GLU.SER.	✔	4	4	2	✘
4WIZ-CA-3	CA	Ca²⁺	D2E1Q1S1	ASP.GLN.GLU.SER.	ASP.GLN.GLU.SER.	✔	5	5	2	✘
4WIZ-CA-4	CA	Ca²⁺	D2E1Q1S1	ASP.GLN.GLU.SER.	ASP.GLN.GLU.SER.	✔	5	5	2	✘
4WIZ-CA-5	CA	Ca²⁺	D2E1S1	ASP.GLU.SER.	ASP.GLU.SER.	✔	4	4	2	✘
4WIZ-CA-6	CA	Ca²⁺	D2E1S1	ASP.GLU.SER.	ASP.GLU.SER.	✔	4	4	2	✘
4WIZ-CA-7	CA	Ca²⁺	D2E1S1	ASP.GLU.SER.	ASP.GLU.SER.	✔	4	4	2	✘
4WIZ-CA-8	CA	Ca²⁺	D2E1S1	ASP.GLU.SER.	ASP.GLU.SER.	✔	4	4	2	✘
4WIZ-CA-9	CA	Ca²⁺	D2E1Q1S1	ASP.GLN.GLU.SER.	ASP.GLN.GLU.SER.	✔	5	5	2	✘