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
6ZLP-CA-2	CA	Ca²⁺	D1Q1T2	ASP.GLN.THR.	ASP.GLN.HOH.THR.	✔	4	5	2	✘
1KEC-CA-1	CA	Ca²⁺	D3E1P1V1	ASP.GLU.PRO.VAL.	ASP.GLU.PRO.VAL.	✘	6	6	2	✘
1KKM-CA-1	CA	Ca²⁺	E1S1X1	GLU.SEP.SER.	GLU.SEP.SER.	✘	3	3	2	✔
1KKM-CA-2	CA	Ca²⁺	E1S1X1	GLU.SEP.SER.	GLU.SEP.SER.	✘	3	3	2	✘
1KKM-CA-3	CA	Ca²⁺	E1S1X1	GLU.SEP.SER.	GLU.HOH.SEP.SER.	✘	3	4	2	✘
1KKM-CA-4	CA	Ca²⁺	E1S1X1	GLU.SEP.SER.	GLU.HOH.SEP.SER.	✘	3	4	2	✘
1KKM-CA-5	CA	Ca²⁺	E1S1X1	GLU.SEP.SER.	GLU.HOH.SEP.SER.	✘	3	4	2	✘
1KKM-CA-6	CA	Ca²⁺	E1S1X1	GLU.SEP.SER.	GLU.HOH.SEP.SER.	✘	3	4	2	✘
1L5H-CA-1	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✘
1L5H-CA-2	CA	Ca²⁺	D2E1R1	ARG.ASP.GLU.	ARG.ASP.GLU.HOH.	✔	4	6	2	✘
1KX1-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KX0-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KX0-CA-2	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KX0-CA-3	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KWZ-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KWZ-CA-2	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KWZ-CA-3	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KWY-CA-1	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KWY-CA-2	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔
1KWY-CA-3	CA	Ca²⁺	D1E2N2X1	ASN.ASP.GLU.MAN.	ASN.ASP.GLU.MAN.	✘	6	6	2	✔