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
1UQX-CA-1	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	ASN.ASP.GLY.MMA.	✔	5	6	2	✘
1UQX-CA-2	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	ASN.ASP.GLY.MMA.	✔	5	6	2	✘
1UQX-CA-3	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	ASN.ASP.GLY.MMA.	✔	5	6	2	✘
1UQX-CA-4	CA	Ca²⁺	D2G1N2	ASN.ASP.GLY.	ASN.ASP.GLY.MMA.	✔	5	6	2	✘
1R7M-CA-1	CA	Ca²⁺	C1T1	DC.DT.	DC.DT.HOH.	✘	2	6	2	✘
1R7M-CA-2	CA	Ca²⁺	A1C1D2	ASP.DA.DC.	ASP.DA.DC.HOH.	✘	4	5	3	✘
1R7M-CA-3	CA	Ca²⁺	C2D2G1	ASP.DC.GLY.	ASP.DC.GLY.HOH.	✘	5	6	3	✔
1QD6-CA-1	CA	Ca²⁺	R1S2	ARG.SER.	ARG.HOH.SER.	✔	3	6	2	✔
1QD6-CA-2	CA	Ca²⁺	R1S2	ARG.SER.	ARG.HOH.SER.	✔	3	4	2	✘
1EDM-CA-1	CA	Ca²⁺	D3G1N1Q1	ASN.ASP.GLN.GLY.	ASN.ASP.GLN.GLY.	✔	6	6	2	✔
1F0O-CA-1	CA	Ca²⁺	C1E1L1	DC.GLU.LEU.	DC.GLU.HOH.LEU.	✘	3	4	2	✔
1F0O-CA-2	CA	Ca²⁺	C1E1G1	DC.GLU.GLY.	DC.GLU.GLY.HOH.	✘	3	4	2	✔
1F0O-CA-3	CA	Ca²⁺	C1D1E1G1	ASP.DC.GLU.GLY.	ASP.DC.GLU.GLY.HOH.	✘	4	5	2	✔
1F0O-CA-4	CA	Ca²⁺	C1D1E1L1	ASP.DC.GLU.LEU.	ASP.DC.GLU.HOH.LEU.	✘	4	6	2	✘
1F2N-CA-1	CA	Ca²⁺	D2N1T1V1	ASN.ASP.THR.VAL.	ASN.ASP.THR.VAL.	✔	5	5	2	✔
1F2N-CA-2	CA	Ca²⁺	D2N1T1V1	ASN.ASP.THR.VAL.	ASN.ASP.THR.VAL.	✔	5	5	2	✘
1F2N-CA-3	CA	Ca²⁺	D2N1T1V1	ASN.ASP.THR.VAL.	ASN.ASP.THR.VAL.	✔	5	5	2	✘
1F2N-CA-4	CA	Ca²⁺	D2N1T1V1	ASN.ASP.THR.VAL.	ASN.ASP.THR.VAL.	✔	5	5	2	✘
1F2N-CA-5	CA	Ca²⁺	D2N1T1V1	ASN.ASP.THR.VAL.	ASN.ASP.THR.VAL.	✔	5	5	2	✘
1F2N-CA-6	CA	Ca²⁺	D2N1T1V1	ASN.ASP.THR.VAL.	ASN.ASP.THR.VAL.	✔	5	5	2	✘