Relative activity of the saturation mutants of Gln360 in L-Ala racemization (A), and the relative activity of wild-type (B) and Q360Y mutant (C) in racemization of ten L-amino acids.
<p><b>(A)</b> The racemase activities of the saturation mutants of Gln360 relative to wild-type Alr<sub><i>Tt</i></sub> are represented by columns with means ± SD of quadruplicate experiments. <b>(B)</b> The racemase activities of ten L-amino acids relative to L-Ala catalyzed by wild-type Alr<sub><i>Tt</i></sub> are represented by columns with means ± SD of quadruplicate experiments. <b>(C)</b> The relative amino acids specificity of Q360Y towards ten L-amino acids is shown in same profile as <b>(B)</b>.</p