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
6OZH-CA-2	CA	Ca²⁺	D2T1	ASP.DT.	ASP.DT.	✘	3	3	2	✔
6OZH-CA-3	CA	Ca²⁺	D1T1	ASP.DT.	A.ASP.DT.	✘	2	3	2	✔
6OZH-CA-4	CA	Ca²⁺	D1T1	ASP.DT.	A.ASP.DT.	✘	2	3	2	✘
6PNJ-CA-1	CA	Ca²⁺	D1E1	ASP.GLU.	ASP.GLU.	✘	2	2	2	✔
6PNJ-CA-2	CA	Ca²⁺	D1E1	ASP.GLU.	ASP.GLU.	✘	2	2	2	✘
6PNJ-CA-3	CA	Ca²⁺	D1E1	ASP.GLU.	ASP.GLU.	✘	2	2	2	✘
6PQX-CA-1	CA	Ca²⁺	A1D1E1G2	ASP.DA.DG.GLU.GLY.	ASP.DA.DG.GLU.GLY.	✘	5	5	2	✔
6PQX-CA-2	CA	Ca²⁺	A1D1T1	ASP.DA.DT.	ASP.DA.DT.	✘	3	3	3	✔
6PQX-CA-3	CA	Ca²⁺	A1D1E1G1	ASP.DA.GLU.GLY.	ASP.DA.GLU.GLY.	✘	4	4	2	✘
6PQX-CA-4	CA	Ca²⁺	A1D1	ASP.DA.	ASP.DA.	✘	2	2	2	✔
6PT6-CA-1	CA	Ca²⁺	D3Q1X1	ASP.DGS.GLN.	ASP.DGS.GLN.	✘	5	5	2	✔
6PT6-CA-2	CA	Ca²⁺	D3Q1X1	ASP.DGS.GLN.	ASP.DGS.GLN.	✘	5	5	2	✔
6PWR-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
6PWT-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
6JJC-CA-1	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘
6JJC-CA-2	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘
6JJC-CA-3	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘
6JJC-CA-4	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘
6JJC-CA-5	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘
6JJC-CA-6	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘