1	CG2	Cytidyl-2'-5'-phospho-guanosine	1.000
2	U2G	Uridylyl-2'-5'-phospho-guanosine	0.951
3	UPA	Uridylyl-2'-5'-phospho-adenosine	0.881
4	GPG	Guanylyl-2',5'-phosphoguanosine	0.844
5	A1AWU	[(2~{R},3~{R},4~{R},5~{S})-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl [(2~{R},3~{R},4~{S},5~{R})-2-(2-azanyl-6-oxidanylidene-1~{H}-purin-9-yl)-5-(hydroxymethyl)-4-oxidanyl-oxolan-3-yl] hydrogen phosphate	0.783
6	ZNT	2'3'-cua	0.745
7	1YC	2-amino-9-[(1r,3r,6r,8r,9r,11s,14r,16r,17r,18r)-16-(6-amino-9h-purin-9-yl)-3,11,17,18-tetrahydroxy-3,11-dioxido-2,4,7,10,12,15-hexaoxa-3,11-diphosphatricyclo[12.2.1.1~6,9~]octadec-8-yl]-1,9-dihydro-6h-purin-6-one	0.735
8	4UR	3'2'-cgamp	0.735