Figure 2
From: Homeostatic mechanisms in dopamine synthesis and release: a mathematical model
Michaelis-Menten and substrate inhibition kinetics. The three curves plot the velocity of the TH reaction as a function of the concentration of tyrosine for normal Michaelis-Menten kinetics, for competitive substrate inhibition, and for uncompetitive substrate inhibition. The curves have been normalized so that each has velocity 100 μ M/hr when the tyrosine concentration is 125 μ M. In each case K m = 46 μ M.