GO:0070412	F	1.00	R-SMAD binding
GO:0050699	F	0.62	WW domain binding
GO:0003824	F	0.22	catalytic activity
GO:0043167	F	0.20	ion binding
GO:0046872	F	0.19	metal ion binding
GO:0008270	F	0.12	zinc ion binding
GO:1901363	F	0.11	heterocyclic compound binding
GO:0097159	F	0.11	organic cyclic compound binding
