Table 1.
The inhibiting oligonucleotides and IC50 values for hydrolysis of RNA target.
Inhibitor | Sequence, 5’-3’ | IC50, nM |
---|---|---|
r-inh | 5’-r(CAAGCAGCCUACCC) | 12 ± 4 |
m-inh | 5’-CmAmAmGmCmAmGmCmCmUmAmCmCmCm | 90 ± 30 |
d-inh | 5’-d(CAAGCAGCCTACCC) | 270 ± 90 |
pgd-inh1 | 5’-d(CxAxAxGxCxAxGxCxCxTxAxCxCxCx)-RNH2 | No effect |
pgd-inh2 | 5’-d(CxAxAxGxCxAxGxCCTACCC) | 400 ± 100 |
pgd-inh3 | 5’-d(CAAGCAGCxCxTxAxCxCxC) | 100 ± 40 |
The cleavage conditions: 5 nM M1 RNA, 50 nM C5 protein, 100 nM fluorescent RNA target, 0-125 nM inhibiting oligonucleotide, 10 mM Tris-HCl, pH 7.5, 10 mM MgCl2, 100 mM NH4Cl, 37°C. Nm – 2’-O-methylribonucleotide; Nx – phosphoryl guanidine deoxyribonucleotide; x - phosphate groups modified with 1,3-dimethylimidazolidine-2-imine residues, RNH2 = –(CH2)6NH2. The results represent mean values (± SD) from two independent experiments.