GO:0005102	F	0.66	receptor binding
GO:0098772	F	0.59	molecular function regulator
GO:0005126	F	0.59	cytokine receptor binding
GO:0019887	F	0.58	protein kinase regulator activity
GO:0030295	F	0.57	protein kinase activator activity
GO:0005128	F	0.57	erythropoietin receptor binding
GO:0005179	F	0.34	hormone activity
GO:0008083	F	0.20	growth factor activity
GO:0004871	F	0.18	signal transducer activity
GO:0005125	F	0.17	cytokine activity
GO:0004872	F	0.15	receptor activity
GO:1901363	F	0.14	heterocyclic compound binding
GO:0097159	F	0.14	organic cyclic compound binding
GO:0038023	F	0.13	signaling receptor activity
GO:0003824	F	0.13	catalytic activity
GO:0004888	F	0.12	transmembrane signaling receptor activity
GO:0004896	F	0.11	cytokine receptor activity
