GO:0005102	F	0.53	receptor binding
GO:0004872	F	0.43	receptor activity
GO:0050839	F	0.41	cell adhesion molecule binding
GO:0042802	F	0.33	identical protein binding
GO:0042803	F	0.32	protein homodimerization activity
GO:0030165	F	0.11	PDZ domain binding
GO:0003823	F	0.11	antigen binding
