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. Author manuscript; available in PMC: 2014 Apr 10.
Published in final edited form as: Biochemistry. 2012 Oct 29;51(44):8829–8843. doi: 10.1021/bi300783t

Table 5.

The effect of I260Q mutation on binding of ℛ and W dNTP.

Approach log(Kd,wt/Kd,mutant) log(Kd,wt/Kd,mutant)W Kd fidelitya
FEP -1.9±0.8 0.0±0.8 1.9±1.1

FEP/LIE -1.8±1.3 0.2±1.4 2.0±1.9
Experiment -0.8±0.5 0.8±1.7 1.6±1.8
a

Kd fidelity = log(Kd,wt/Kd,mutant)W − log(Kd,wt/Kd,mutant)