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
6A56-CA-1	CA	Ca²⁺	C1D1E1M1N1X1	ASN.ASP.CYS.GAL.GLU.MET.	ASN.ASP.CYS.GAL.GLU.MET.	✘	6	6	2	✔
6A56-CA-2	CA	Ca²⁺	C1D1E1M1N1X1	ASN.ASP.CYS.GAL.GLU.MET.	ASN.ASP.CYS.GAL.GLU.MET.	✘	6	6	2	✔