GO:0099600	F	0.93	transmembrane receptor activity
GO:0038023	F	0.75	signaling receptor activity
GO:0005215	F	0.74	transporter activity
GO:0004888	F	0.74	transmembrane signaling receptor activity
GO:0022891	F	0.73	substrate-specific transmembrane transporter activity
GO:0015075	F	0.72	ion transmembrane transporter activity
GO:0005216	F	0.71	ion channel activity
GO:0022836	F	0.55	gated channel activity
GO:0015276	F	0.51	ligand-gated ion channel activity
GO:0005230	F	0.50	extracellular ligand-gated ion channel activity
GO:0015108	F	0.46	chloride transmembrane transporter activity
GO:0005231	F	0.46	excitatory extracellular ligand-gated ion channel activity
GO:0004890	F	0.46	GABA-A receptor activity
GO:0005254	F	0.44	chloride channel activity
GO:0043167	F	0.43	ion binding
GO:0008324	F	0.33	cation transmembrane transporter activity
GO:0030594	F	0.32	neurotransmitter receptor activity
GO:0043169	F	0.31	cation binding
GO:0005261	F	0.31	cation channel activity
GO:0004889	F	0.27	acetylcholine-activated cation-selective channel activity
GO:0070405	F	0.26	ammonium ion binding
GO:0015464	F	0.26	acetylcholine receptor activity
GO:0042166	F	0.25	acetylcholine binding
GO:0043168	F	0.14	anion binding
GO:0097159	F	0.13	organic cyclic compound binding
GO:0031406	F	0.13	carboxylic acid binding
GO:1901363	F	0.12	heterocyclic compound binding
GO:0016933	F	0.12	extracellular-glycine-gated ion channel activity
GO:0016594	F	0.12	glycine binding
GO:0005237	F	0.12	inhibitory extracellular ligand-gated ion channel activity
GO:0016934	F	0.11	extracellular-glycine-gated chloride channel activity
