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A Positive Selection for Nucleoside Kinases in E. coli

Fig 3

Viability of E. coli BW14012 cells expressing tatHSV-TK (blue circles) or tatHSV-TKD (red squares) as a function of AZT concentrations.

Cell viability is expressed relative to the number of colonies at 0 μg/mL AZT for each strain type.

Fig 3