GO:0005509	F	0.87	calcium ion binding
GO:0046983	F	0.36	protein dimerization activity
GO:0042802	F	0.35	identical protein binding
GO:0042803	F	0.34	protein homodimerization activity
GO:1901363	F	0.31	heterocyclic compound binding
GO:0097159	F	0.31	organic cyclic compound binding
GO:0097367	F	0.20	carbohydrate derivative binding
GO:0035639	F	0.18	purine ribonucleoside triphosphate binding
GO:0032555	F	0.18	purine ribonucleotide binding
GO:0032550	F	0.18	purine ribonucleoside binding
GO:0005524	F	0.17	ATP binding
GO:0005215	F	0.15	transporter activity
GO:0004871	F	0.14	signal transducer activity
GO:0003676	F	0.14	nucleic acid binding
GO:0022891	F	0.13	substrate-specific transmembrane transporter activity
GO:0004872	F	0.13	receptor activity
