GO:0005102	F	0.87	receptor binding
GO:0050839	F	0.86	cell adhesion molecule binding
GO:0004872	F	0.86	receptor activity
GO:0042802	F	0.85	identical protein binding
GO:0046983	F	0.84	protein dimerization activity
GO:0042803	F	0.83	protein homodimerization activity
