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. 2013 Sep 10;11(9):e1001651. doi: 10.1371/journal.pbio.1001651

Table 2. Calculated and experimental cAMP affinities for GlxR proteins.

GlxR Protein K 2/K 1 (ENM) Mean K 2/K 1 (ITC) S.E.M. (n) p Value
Wild-type 2.37 19.47 1.12 (18) -
L134V k L134/k = 0.25 2.07 4.34 0.21 (26) <0.001
A131V k A131/k = 4 2.05 4.36 0.21 (30) <0.001

The ratio of the second to first dissociation constants for cAMP (K 2/K 1) for wild-type and mutant GlxR proteins were calculated from the ENM or obtained by ITC. The p value is for a comparison of means to the wild-type.