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
5NGQ-CA-4	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	ASN.ASP.GLY.ZDC.	✔	5	6	2	✘
6E48-CA-1	CA	Ca²⁺	D2G1K1N1	ASN.ASP.GLY.LYS.	ASN.ASP.GLY.HOH.LYS.	✘	5	6	2	✔
6E48-CA-2	CA	Ca²⁺	D2G1K1N1	ASN.ASP.GLY.LYS.	ASN.ASP.GLY.HOH.LYS.	✘	5	6	2	✘
6DT0-CA-1	CA	Ca²⁺	E4	GLU.	GLU.	✔	4	4	4	✔
6DWY-CA-1	CA	Ca²⁺	C1G1	DC.DG.	DC.DG.	✘	2	2	2	✔
6DWY-CA-2	CA	Ca²⁺	C1G1	DC.DG.	DC.DG.	✘	2	2	2	✘
6B0J-CA-1	CA	Ca²⁺	D3N1X1	ASN.ASP.G4S.	ASN.ASP.G4S.	✘	5	5	2	✔
6B0J-CA-2	CA	Ca²⁺	D3N1X1	ASN.ASP.G4S.	ASN.ASP.G4S.	✘	5	5	2	✔
6B0J-CA-3	CA	Ca²⁺	D3N1X1	ASN.ASP.G4S.	ASN.ASP.G4S.	✘	5	5	2	✔
6B1V-CA-1	CA	Ca²⁺	D3N1X1	ASN.ASP.G4S.	ASN.ASP.G4S.	✘	5	5	2	✔
6B1V-CA-2	CA	Ca²⁺	D3N1X1	ASN.ASP.G4S.	ASN.ASP.G4S.	✘	5	5	2	✔
6B1V-CA-3	CA	Ca²⁺	D3N1X1	ASN.ASP.G4S.	ASN.ASP.G4S.	✘	5	5	2	✔
6B67-CA-1	CA	Ca²⁺	D1G1X1	ASP.GLY.SEP.	ASP.GLY.HOH.SEP.	✘	3	6	2	✔
6BD0-CA-1	CA	Ca²⁺	A1E1G1T1	DA.DT.GLU.GLY.	DA.DT.GLU.GLY.HOH.	✘	4	6	3	✔
6BD0-CA-2	CA	Ca²⁺	A2C1E1	ALA.DA.DC.GLU.	ALA.DA.DC.GLU.HOH.	✘	4	6	3	✔
6BCT-CA-1	CA	Ca²⁺	A2C1	ALA.DA.DC.	ALA.DA.DC.	✘	3	3	3	✔
6BCT-CA-2	CA	Ca²⁺	E1G2T1	DG.DT.GLU.GLY.	DG.DT.GLU.GLY.	✘	4	4	3	✔
6BCT-CA-3	CA	Ca²⁺	A1C1D1E1G1T1	ASP.DA.DC.DG.DT.GLU.	ASP.DA.DC.DG.DT.GLU.	✘	6	6	3	✘
6BCG-CA-1	CA	Ca²⁺	A1C1E1	DA.DC.GLU.	DA.DC.GLU.	✘	3	3	3	✔
6BCG-CA-2	CA	Ca²⁺	E1G2	DG.GLU.GLY.	DG.GLU.GLY.	✘	3	3	2	✔