Kcat: Understanding Enzyme Efficiency

Kcat is a measure of the catalytic efficiency of an enzyme. It's defined as the rate of the enzyme-catalyzed reaction under optimal conditions divided by the concentration of the enzyme. This value represents the maximum number of substrate molecules that can be converted to product per enzyme molecule per unit time. Kcat is expressed in units of s-1 and is used to compare the efficiency of different enzymes in catalyzing the same reaction.