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
6ZLZ-CA-356	CA	Ca²⁺	E3S1	GLU.SER.	GLU.SER.	✔	4	4	3	✘
6ZLZ-CA-357	CA	Ca²⁺	E3S1	GLU.SER.	GLU.SER.	✔	4	4	3	✘
6ZLZ-CA-359	CA	Ca²⁺	E3S1	GLU.SER.	GLU.SER.	✔	4	4	3	✘
6ZLZ-CA-360	CA	Ca²⁺	E3S1	GLU.SER.	GLU.SER.	✔	4	4	3	✘