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
7UKG-K-3	K	K⁺	G4L4	GLY.LEU.	GLY.LEU.	✔	8	8	4	✘
7UKG-K-4	K	K⁺	G4Y4	GLY.TYR.	GLY.TYR.	✔	8	8	4	✘
7DFY-SR-1	SR	Sr²⁺	G1T2	DG.DT.	DG.DT.HOH.	✔	3	8	2	✔
7DFY-SR-2	SR	Sr²⁺	T2	DT.	DT.HOH.	✔	2	4	2	✔
7TZP-K-1	K	K⁺	V2	VAL.	HOH.VAL.	✔	2	3	2	✔
7TYS-K-1	K	K⁺	F4	PHE.	PHE.	✔	4	4	4	✔
7TYS-K-2	K	K⁺	I1T4	ILE.THR.	ILE.THR.	✔	5	5	4	✔
7TYT-K-1	K	K⁺	T4	THR.	THR.	✔	4	4	4	✔
7U1S-K-1	K	K⁺	I1T4	ILE.THR.	ILE.THR.	✔	5	5	4	✔
7U1Q-K-1	K	K⁺	T4	THR.	THR.	✔	4	4	4	✔
7KZ0-K-1	K	K⁺	A1I2L1	DA.ILE.LEU.	DA.HOH.ILE.LEU.	✘	4	6	2	✔
7TDL-K-1	K	K⁺	E1G1N1	ASN.GLU.GLY.	ASN.GLU.GLY.HOH.	✔	3	5	2	✔
7TDL-K-2	K	K⁺	E1G1N1	ASN.GLU.GLY.	ASN.GLU.GLY.HOH.	✔	3	6	2	✘
7TDL-K-3	K	K⁺	E1G1N1	ASN.GLU.GLY.	ASN.GLU.GLY.HOH.	✔	3	5	2	✔
7TDL-K-4	K	K⁺	E1G1N1	ASN.GLU.GLY.	ASN.GLU.GLY.HOH.	✔	3	5	2	✘
7SK1-K-1	K	K⁺	I2T6	ILE.THR.	ILE.THR.	✔	8	8	2	✔
7SK1-K-2	K	K⁺	G2I2T2	GLY.ILE.THR.	GLY.ILE.THR.	✔	6	6	2	✔
7SK1-K-3	K	K⁺	T4	THR.	THR.	✔	4	4	2	✔
7JZ7-K-1	K	K⁺	A1E1N1	ALA.ASN.GLU.	ALA.ASN.GLU.HOH.	✔	3	4	2	✔
7JZ7-K-2	K	K⁺	A1E1N1	ALA.ASN.GLU.	ALA.ASN.GLU.HOH.	✔	3	4	2	✔