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. 2011 Sep 6;286(43):37406–37413. doi: 10.1074/jbc.M111.260265

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© 2011 by The American Society for Biochemistry and Molecular Biology, Inc.

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FIGURE 4. — Profiles of leucine responses of wild-type GdhA-GdhB and mutants. The relative reductive amination reaction of 2-oxoglutarate was examined for each mutant. The relative GDH activities in the reaction in the presence of various leucine concentrations are shown (white bars). A, wild-type GdhA-GdhB. B, GdhA(Y38S)-GdhB. C, GdhA(I71T)-GdhB. D, GdhA(A72D)-GdhB. E, GdhA(R134A)-GdhB. F, GdhA(D166A)-GdhB. Specific activities in the absence of leucine are 8.71, 1.83, 2.24, 1.45, 3.40, and 7.11 units/mg for wild-type GdhA-GdhB, GdhA(Y38S)-GdhB, GdhA(I71T)-GdhB, GdhA(A72D)-GdhB, GdhA(R134A)-GdhB, and GdhA(D166A)-GdhB, respectively. Error bars indicate S.D. (n = 3).