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. 2009 Jun 11;284(32):21132–21138. doi: 10.1074/jbc.M109.010215

TABLE 3.

Summary of inhibition constants

Inhibitor Varied substrate Fixed substrate Type of inhibition Ki βa
μm
CMP CDP-glycerol Lipid ϕ analog Competitive 182 ± 35
CMP Lipid ϕ analog CDP-glycerol Non-competitive (partial) 156 ± 30 0.23 ± 0.04

a β is a constant in Equation 4 that modifies the rate of product formation when inhibitor is bound to the enzyme·substrate complex (28).