GO:0046872	F	0.32	metal ion binding
GO:0022892	F	0.32	substrate-specific transporter activity
GO:0015075	F	0.31	ion transmembrane transporter activity
GO:0005216	F	0.30	ion channel activity
GO:0005509	F	0.29	calcium ion binding
GO:0005198	F	0.28	structural molecule activity
GO:0022836	F	0.26	gated channel activity
GO:0003735	F	0.26	structural constituent of ribosome
GO:0022890	F	0.24	inorganic cation transmembrane transporter activity
GO:0005261	F	0.24	cation channel activity
GO:0046873	F	0.23	metal ion transmembrane transporter activity
GO:0042802	F	0.23	identical protein binding
GO:0005244	F	0.23	voltage-gated ion channel activity
GO:0022843	F	0.18	voltage-gated cation channel activity
GO:0015077	F	0.16	monovalent inorganic cation transmembrane transporter activity
GO:0005267	F	0.15	potassium channel activity
GO:0005249	F	0.12	voltage-gated potassium channel activity
