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. 2014 Feb 12;53(9):1536–1543. doi: 10.1021/bi401716z

Table 1. KD Values for NPG Binding of LacY Mutants.

  KDapp (μM)a standard error
WT 19.2 1.1
N272A 142.6 39.4
N272D b b
N272E b b
N272F b b
N272Q 20.0 1.8
N272S b b
N272V b b
V264A 30.1 4.1
G268A 154.7 57.3
a

Values determined as described in the legend of Figure 4.

b

Binding is too poor to determine a KD.