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. 2001 Sep;45(9):2563–2570. doi: 10.1128/AAC.45.9.2563-2570.2001

FIG. 4.

FIG. 4

Kinetics of inhibition of A/Tokyo/3/67 influenza virus neuraminidase by compound 3. (A) Double reciprocal plot showing competitive inhibition of the reaction by compound 3 final concentrations of 0 (●), 35 (○), 70 (▪), 140 (□), 210 (⧫), and 280 (◊) μM. (B) Replot of the slopes from panel A against inhibitor concentration to determine the Ki value of 59 μM from the abscissa intercept.