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. 2017 Dec 5;8:2071. doi: 10.3389/fpls.2017.02071

FIGURE 2.

FIGURE 2

Catalytic properties of the recombinant OsD-LDH-FL. (A) Substrate specificity screening of OsD-LDH, performed at 25°C and pH 8.35 using Cyt c as the electron acceptor. (B) Electron acceptors screening of OsD-LDH, performed at 25°C and pH 8.35. (C) pH optimum of OsD-LDH, performed at 25°C using PMS-DCIP as the electron acceptor. (D) Temperature optimum of OsD-LDH, performed at pH 8.35 using PMS-DCIP as the electron acceptor. (E–H) Kinetic parameters of OsD-LDH toward D-lactate and D-2-HB using PMS-DCIP and Cyt c as electron acceptors, respectively; Vmax and KM were determined using a Hanes–Woolf plot method and all experiments were performed at 30°C and pH 8.35. D-2-HB, D-2-hydroxybutyrate; D-Lac, D-lactate; L-Lac, L-lactate; Glyce, Glycerol; Glyco, Glycolate; 3-HB, 3-hydroxybutyrate; GST, Purified Glutathione S-transferase as negative control. Values represent the mean ± SD (n = 3).