Table III. Statistical evidence for EBS3–IBS3 and δ–δ′ pairings in group IIB introns^a.

EBS3 (293 and counterparts)	IBS3
	A	C	G	U
A	1	1	2	18
C	2	0	1	0
G	0	18	0	5
U	16	2	1	2
δ	δ′ (195 and counterparts)
	A	C	G	U
A	3	0	0	0
C	2	0	16	0
G	0	8	1	0
U	30	6	1	2

^aThe same 69 sequences were analyzed as in Figure 1B.