GO:0015075	F	0.91	ion transmembrane transporter activity
GO:0022836	F	0.90	gated channel activity
GO:0005261	F	0.90	cation channel activity
GO:0005249	F	0.88	voltage-gated potassium channel activity
GO:1901363	F	0.41	heterocyclic compound binding
GO:0097159	F	0.41	organic cyclic compound binding
GO:0032555	F	0.40	purine ribonucleotide binding
GO:0030551	F	0.40	cyclic nucleotide binding
GO:0032559	F	0.27	adenyl ribonucleotide binding
GO:0015276	F	0.25	ligand-gated ion channel activity
GO:0043855	F	0.24	cyclic nucleotide-gated ion channel activity
GO:0005221	F	0.23	intracellular cyclic nucleotide activated cation channel activity
GO:0003824	F	0.22	catalytic activity
GO:0005222	F	0.21	intracellular cAMP activated cation channel activity
GO:0016772	F	0.20	transferase activity, transferring phosphorus-containing groups
GO:0005223	F	0.17	intracellular cGMP activated cation channel activity
GO:0030553	F	0.16	cGMP binding
GO:0030234	F	0.16	enzyme regulator activity
GO:0030291	F	0.15	protein serine/threonine kinase inhibitor activity
