GO:0050839	F	0.42	cell adhesion molecule binding
GO:0042802	F	0.35	identical protein binding
GO:0019904	F	0.35	protein domain specific binding
GO:0030165	F	0.34	PDZ domain binding
GO:0071253	F	0.33	connexin binding
GO:0008013	F	0.33	beta-catenin binding
GO:0046983	F	0.26	protein dimerization activity
GO:0004872	F	0.25	receptor activity
GO:0042803	F	0.21	protein homodimerization activity
GO:0043167	F	0.19	ion binding
GO:0005198	F	0.19	structural molecule activity
GO:0005102	F	0.19	receptor binding
GO:0046872	F	0.18	metal ion binding
GO:0044877	F	0.17	macromolecular complex binding
GO:0003824	F	0.16	catalytic activity
GO:0032403	F	0.15	protein complex binding
GO:0004871	F	0.13	signal transducer activity
GO:0097367	F	0.12	carbohydrate derivative binding
GO:0097159	F	0.12	organic cyclic compound binding
GO:0038023	F	0.12	signaling receptor activity
GO:1901363	F	0.11	heterocyclic compound binding
