Figure 4 | Scientific Reports

Figure 4

From: Structural and Mechanistic Analysis of Drosophila melanogaster Agmatine N-Acetyltransferase, an Enzyme that Catalyzes the Formation of N-Acetylagmatine

Figure 4

Acetyl-CoA and agmatine initial velocity double reciprocal plots. (A) Velocities measured at fixed concentrations of agmatine: 1500 μM (○), 750 μM (□), 300 μM (◇), and 60 μM (Δ). (B) Velocities measured at fixed concentrations of acetyl-CoA: 500 μM (○), 250 μM (□), 100 μM (◇), 50 μM (Δ), and 20 μM (▽). These data are best fit to the rate equation for a sequential mechanism (χ 2 is 4.6 for Equation 3) than the rate equation for a ping pong mechanism (χ 2 is 5.0 for Equation 4).

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