GO:0004896	F	0.89	cytokine receptor activity
GO:0005125	F	0.69	cytokine activity
GO:0000166	F	0.31	nucleotide binding
GO:0019976	F	0.21	interleukin-2 binding
GO:0005088	F	0.18	Ras guanyl-nucleotide exchange factor activity
