Biology as Poetry: Biochemistry

Bacteriophage Ecology Group

Enzyme Saturation

Sufficient substrate presence that a catalytized reaction rate is a function solely of turnover rate.

This is the substrate concentration that is sufficiently large that it does not limit rates of enzyme-catalyzed reactions. Alternatively, saturation is a reflection of diminishing returns associated with increasing substrate concentrations on reaction rate. Note that the terms saturation may be more generally applied to consider, especially, protein-ligand interactions. See also saturation curve and Michaelis-Menten enzyme kinetics.

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