Table 2.
Identified inhibitors of BoNT/A from in silico screening. IC50 values were measured using BoNT/A 1-448 and the listed FRET substrate (continuous assay).
Inhibitor | CID | Structure | SNAPtide IC50 ( M) | YFP-(141-206)-CFP IC50 ( M) |
---|---|---|---|---|
C1 | 24761252 |
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>200 | 56 ± 21 (Ki = 31 ± 4 M)1 130 ± 30 |
C2 | 16192427 |
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0.5 ± 0.2 | 0.10 ± 0.06 (Ki = 0.09 ± 0.01 M) |
C3 | 2917753 |
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130 ± 801 | 160 ± 201 |
C4 | 16745487 |
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ND* | 0.4 ± 0.2 |
C5 | 24790597 |
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26 ± 11 | >100 |
C6 | 1742967 |
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8 ± 3 | 43 ± 7 |
C7 | 5515977 |
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50 ± 20 | 70 ± 30 |
C8 | 9659590 |
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6 ± 6 | >200 |
partial inhibition
Buffer used for measurement contained reducing agent (20mM HEPES pH 8.0, 1.25mM DTT, 0.01% Tween-20).