Table 1.

Binding activity of individual selected aptamer clones

Clone	Binding ratio*	Clone	Binding ratio*
909	0.1	945	2.0
915	0.4	946	0.1
922	0.5	978	0.3
934	0.8	979	0.7
936	0.1	989	3.0
940	2.7	9102	0.1

^*The ability of individual selected aptamers to compete with the wild-type fdhF mRNA hairpin is reflected in the “binding ratio”—the ratio of radiolabeled aptamer to radiolabeled wild-type RNA retained on the filter.