. Author manuscript; available in PMC: 2010 Apr 15.

Published in final edited form as: J Am Chem Soc. 2009 Apr 15;131(14):5257–5263. doi: 10.1021/ja809419f

Table 1.

143 RNAs: selected loop and 3′ -terminal sequences.

	Triplet NGU, N	Quad N′NGY			Five/six nucleotide loops	3′ -terminal nucleotides
	Triplet NGU, N	N′	N	Y	Five/six nucleotide loops	N^3'	N^3'-1	N^3'-2	N^3'-3	N^3'-4
U	44	19	18	26	ACUGU, CACGU	136 (95%)	21	30	44	36
C	9	2	12	13	ACCGU	2	83 (58%)	33	41	44
A	6	14	8	0	GCAAGU	2	20	29	30	27
G	2	4	1	0	GCUCGU	3	19	51	28	36
Tot	61 (43%)	39 (27%)			5 (3.5%)	143 (100%)