FIG. 3.
Effects of various amino acids on mKAT III activity. Activities were quantified by the amounts of KYNA produced in the reaction mixtures. The rates of KYNA production in the different reaction mixtures are shown. The labeled bars (**, P < 0.01; *, P < 0.05) show significant differences from the control. Kyn, kynurenine; GABA, γ-aminobutyric acid.