Figure 2.
Myelin basic protein (MBP)-binding activity of MBPcl3 aptamer using an ELISA-like assay. 0.5 µg of pure MBP was incubated in a microtiter plate with equal nmol of an unselected aptamer library (Lib35), MBPcl3 or MBPcl9 (a) or with a scrambled MBPcl3 aptamer whose entire nucleotide sequence was randomly rearranged (b). Bound aptamers were detected with horseradish peroxidase (HRP)-conjugated avidin and developed with 3,3',5,5'-tetramethylbenzidine (TMB) substrate (dark gray). Wells without MBP were used as controls (light gray). Experiments were performed in triplicate. The asterisk indicates a significant difference in comparison with MBPcl3 (P < 0.05, Student's t-test). Data are shown as mean ± SD.
