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
6X6M-CA-1	CA	Ca²⁺	D2E2N1Y1	ASN.ASP.GLU.TYR.	ASN.ASP.GLU.TYR.	✘	6	6	2	✔
6X6M-CA-2	CA	Ca²⁺	D2E1N1S1T1	ASN.ASP.GLU.SER.THR.	ASN.ASP.GLU.SER.THR.	✘	6	6	2	✔
4QKM-CA-1	CA	Ca²⁺	S4	SER.	HOH.SER.	✔	4	8	4	✔
7Z53-CA-1	CA	Ca²⁺	D2F1S1T1	ASP.PHE.SER.THR.	ASP.PHE.SER.THR.	✘	5	5	2	✘
7Z53-CA-2	CA	Ca²⁺	D2F1S1T1	ASP.PHE.SER.THR.	ASP.PHE.SER.THR.	✘	5	5	2	✘
7Y1T-MN-1	MN	Mn²⁺	D1S2	ASP.SER.	ASP.SER.	✘	3	3	2	✔
7WWO-CA-1	CA	Ca²⁺	D1E2I1S1T1	ASP.GLU.ILE.SER.THR.	ASP.GLU.ILE.SER.THR.	✔	6	6	2	✔
7WWO-CA-2	CA	Ca²⁺	D1E2I1S1T1	ASP.GLU.ILE.SER.THR.	ASP.GLU.ILE.SER.THR.	✔	6	6	2	✔
7WHF-CA-1	CA	Ca²⁺	D1E1P1R1	ARG.ASP.GLU.PRO.	ARG.ASP.GLU.HOH.PRO.	✘	4	6	2	✔
7WHF-CA-2	CA	Ca²⁺	D1E1I1Q1	ASP.GLN.GLU.ILE.	ASP.GLN.GLU.HOH.ILE.	✘	4	7	2	✔
7VUS-CA-1	CA	Ca²⁺	D1K1	ASP.LYS.	ASP.HOH.LYS.	✔	2	4	2	✔
7VUU-CA-1	CA	Ca²⁺	D1E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	3	6	2	✔
7VUU-CA-2	CA	Ca²⁺	E3	GLU.	GLU.HOH.	✔	3	6	2	✔
7VFS-CA-1	CA	Ca²⁺	D1S2T1	ASP.SER.THR.	ASP.SER.THR.	✘	4	4	2	✘
7VFV-CA-1	CA	Ca²⁺	D1S1T1	ASP.SER.THR.	ASP.SER.THR.	✘	3	3	2	✘
7VFU-CA-1	CA	Ca²⁺	D1S1T1	ASP.SER.THR.	ASP.SER.THR.	✘	3	3	2	✘
7VFW-CA-1	CA	Ca²⁺	D1S1T1	ASP.SER.THR.	ASP.SER.THR.	✘	3	3	2	✔
7V1W-CA-1	CA	Ca²⁺	D1E1N2T1	ASN.ASP.GLU.THR.	ASN.ASP.GLU.HOH.THR.	✔	5	7	2	✘
7V1W-CA-2	CA	Ca²⁺	D1E1N2T1	ASN.ASP.GLU.THR.	ASN.ASP.GLU.HOH.THR.	✔	5	7	2	✘
7V1W-CA-3	CA	Ca²⁺	D1E1N2T1	ASN.ASP.GLU.THR.	ASN.ASP.GLU.HOH.THR.	✔	5	7	2	✘