Michaelis constant

Related:

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the dissociation constant of the enzyme-substrate complex, reflects stability of enzyme-substrate interaction

$$K_m=\frac{k_{-1}+k_2}{k_1}$$

$k_1$ = rate constant for formation of the enzyme-substrate complex
$k_{-1}$ = dissociation of enzyme-substrate complex
$k_2$ conversation of enzyme-substrate complex to product