Table 5.
UL54 Varianta | Cidofovir |
Ganciclovir |
Foscarnet |
|||
---|---|---|---|---|---|---|
EC50b | Ratioc | EC50b | Ratioc | EC50b | Ratioc | |
Control strain | ||||||
wt | 1.00 | 1.60 | 112 | |||
Newly phenotyped variants (N = 3) | ||||||
N345S | 0.67 | 0.7 | 1.94 | 1.2 | 99 | 0.9 |
V476G | 0.80 | 0.8 | 1.50 | 0.9 | 50 | 0.4 |
Q578L | 0.84 | 0.8 | 3.00 | 1.9 | 332 | 3.0 |
Bold: Results associated with decreased drug susceptibility.
Abbreviations: BAC, bacterial artificial chromosome; EC50, concentration required to reduce activity of the secreted alkaline phosphatase reporter by 50%; wt, wild type.
a Mutation introduced into BAC and recombinant virus.
b Drug concentration (µM) required to reduce plaque formation by 50%.
c Ratio of EC50 to baseline strain.