Table 2.

Distribution of the 3' end addition fragments in G1245N and G1245T library

Fragment sequence	Abun. in G1245N (%)	Abun. in G1245T (%)
A	50.93	33.25
U	30.72	44.07
AA	3.39	4.67
UA	2.28	4.19
UU	2.16	3.12
AU	1.53	1.23
G	1.40	1.80
AAA	1.07	2.10

We analyzed the sequence and the relative abundance of 3' end addition fragments. As a result, adenine and uridine additions account for almost 80% of all addition events. Only the addition fragments accounting for more than 1% of all addition events are listed here.