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
6D72-CA-11	CA	Ca²⁺	E3	GLU.	GLU.HOH.	✔	3	5	2	✘
6D72-CA-12	CA	Ca²⁺	E3	GLU.	GLU.HOH.	✔	3	5	2	✘
6D7W-CA-1	CA	Ca²⁺	E2	GLU.	GLU.	✔	2	2	2	✔
6D80-CA-1	CA	Ca²⁺	E2	GLU.	GLU.	✔	2	2	2	✘
6CX0-CA-1	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✔
6CX0-CA-2	CA	Ca²⁺	D2E1	ASP.GLU.	ASP.GLU.	✔	3	3	2	✘
6EKO-CA-1	CA	Ca²⁺	A1C1D1	ALA.ASP.DC.	ALA.ASP.DC.HOH.	✘	3	5	2	✔
6EKO-CA-2	CA	Ca²⁺	A1C1D1	ALA.ASP.DC.	ALA.ASP.DC.HOH.	✘	3	5	2	✘
6EP2-CA-1	CA	Ca²⁺	E2	GLU.	GLU.HOH.	✔	2	5	2	✔
6EP2-CA-2	CA	Ca²⁺	E2	GLU.	GLU.HOH.	✔	2	5	2	✘
6EP2-CA-3	CA	Ca²⁺	E2	GLU.	ADP.GLU.HOH.	✔	2	7	2	✘
6EP2-CA-4	CA	Ca²⁺	E2	GLU.	GLU.HOH.	✔	2	6	2	✘
6EP2-CA-5	CA	Ca²⁺	E2	GLU.	ADP.GLU.HOH.	✔	2	6	2	✘
6EP2-CA-6	CA	Ca²⁺	E2	GLU.	GLU.HOH.	✔	2	5	2	✘
6EP0-CA-1	CA	Ca²⁺	E2	GLU.	AMP.GLU.HOH.	✔	2	6	2	✘
6ESB-CA-1	CA	Ca²⁺	E2S1	GLU.SER.	GLU.SER.	✔	3	3	2	✔
6ESB-CA-2	CA	Ca²⁺	E2S1	GLU.SER.	GLU.SER.	✔	3	3	2	✘
6ESB-CA-3	CA	Ca²⁺	E2S1	GLU.SER.	GLU.SER.	✔	3	3	2	✘
6ESB-CA-4	CA	Ca²⁺	E2S1	GLU.SER.	GLU.SER.	✔	3	3	2	✘
6ESB-CA-5	CA	Ca²⁺	E2S1	GLU.SER.	GLU.SER.	✔	3	3	2	✘