GO:0015075	F	0.77	ion transmembrane transporter activity
GO:0015267	F	0.75	channel activity
GO:0008324	F	0.75	cation transmembrane transporter activity
GO:0005216	F	0.74	ion channel activity
GO:0005261	F	0.73	cation channel activity
GO:0046873	F	0.72	metal ion transmembrane transporter activity
GO:0015085	F	0.70	calcium ion transmembrane transporter activity
GO:0005262	F	0.69	calcium channel activity
GO:0036094	F	0.22	small molecule binding
GO:0097159	F	0.21	organic cyclic compound binding
GO:1901363	F	0.19	heterocyclic compound binding
GO:0003824	F	0.17	catalytic activity
GO:0032555	F	0.16	purine ribonucleotide binding
GO:0032550	F	0.16	purine ribonucleoside binding
GO:0005524	F	0.15	ATP binding
GO:0008092	F	0.14	cytoskeletal protein binding
GO:0046872	F	0.13	metal ion binding
GO:0022836	F	0.13	gated channel activity
