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
1W5P-K-6	K	K⁺	D1R1	ARG.ASP.	ARG.ASP.	✔	2	2	2	✘
1W5P-K-7	K	K⁺	D1R1	ARG.ASP.	ARG.ASP.	✔	2	2	2	✘
1W5P-K-8	K	K⁺	D1R1	ARG.ASP.	ARG.ASP.	✔	2	2	2	✘
1XRA-K-1	K	K⁺	G2	GLY.	GLY.	✔	2	2	2	✔
1XRA-K-2	K	K⁺	G2	GLY.	GLY.	✔	2	2	2	✘
1TK6-MG-1	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.GLU.	✔	2	2	2	✔
1TK6-MG-2	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.GLU.	✔	2	2	2	✘
1TK6-MG-3	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.GLU.	✔	2	2	2	✘
1TK6-MG-4	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.GLU.	✔	2	2	2	✘
1TK6-MG-5	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.GLU.	✔	2	2	2	✘
1TK6-MG-6	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.GLU.	✔	2	2	2	✘
1TK6-MG-7	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.HOH.	✔	2	2	2	✔
1TK6-MG-8	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.HOH.	✔	2	2	2	✘
1TK6-MG-9	MG	Mg²⁺	E1Q1	GLN.GLU.	GLN.HOH.	✔	2	2	2	✘
3DLS-MG-2	MG	Mg²⁺	E1G1	GLU.GLY.	GLU.GLY.	✔	2	2	2	✔
3DLS-MG-3	MG	Mg²⁺	E1G1	GLU.GLY.	GLU.GLY.	✔	2	2	2	✔
4H9D-MG-1	MG	Mg²⁺	A1K1	ALA.LYS.	ALA.LYS.	✔	2	2	2	✔
6JD2-MG-1	MG	Mg²⁺	D1E1	ASP.GLU.	ASP.GLU.	✔	2	2	2	✔
6JD2-MG-2	MG	Mg²⁺	D1E1	ASP.GLU.	ASP.GLU.	✔	2	2	2	✔
6ET9-K-1	K	K⁺	E2	GLU.	GLU.	✔	2	2	2	✔