GO:0016879	F	1.00	ligase activity, forming carbon-nitrogen bonds
GO:0004019	F	0.99	adenylosuccinate synthase activity
GO:0097159	F	0.40	organic cyclic compound binding
GO:1901363	F	0.39	heterocyclic compound binding
GO:0036094	F	0.27	small molecule binding
GO:0000166	F	0.26	nucleotide binding
GO:0035639	F	0.24	purine ribonucleoside triphosphate binding
GO:0032555	F	0.24	purine ribonucleotide binding
GO:0032550	F	0.24	purine ribonucleoside binding
GO:0005524	F	0.19	ATP binding
GO:0043167	F	0.14	ion binding
GO:0003676	F	0.13	nucleic acid binding
GO:0003723	F	0.11	RNA binding
