GO:0005126	F	1.00	cytokine receptor binding
GO:0005125	F	0.99	cytokine activity
GO:0043167	F	0.25	ion binding
GO:0046872	F	0.24	metal ion binding
GO:0004872	F	0.18	receptor activity
GO:0004871	F	0.16	signal transducer activity
GO:0038023	F	0.15	signaling receptor activity
GO:0097159	F	0.14	organic cyclic compound binding
GO:0004888	F	0.14	transmembrane signaling receptor activity
GO:1901363	F	0.13	heterocyclic compound binding
GO:0003676	F	0.12	nucleic acid binding
