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Biology
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Enzyme Kinetics
Enzyme Kinetics Calculator
Calculate Michaelis-Menten kinetics. Find Km, Vmax, and analyze Lineweaver-Burk plots.
Input Method
Examples
Vmax (maximum velocity)
Km (Michaelis constant)
[S] (substrate concentration)
Inhibition
Inhibition Type
Kinetic Parameters
100
Vmax
5
Km
66.6667
v at [S]=10
Kinetic Plots
Michaelis-Menten
Lineweaver-Burk
Velocity Summary
At [S] = Km:
50.00 (50% Vmax)
At [S] = 10×Km:
90.91 (91% Vmax)
Enzyme Kinetics Equations
v = (Vmax·[S]) / (Km + [S])
Lineweaver-Burk: 1/v = (Km/Vmax)·(1/[S]) + 1/Vmax
Competitive: apparent Km = Km(1 + [I]/Ki)
Non-competitive: apparent Vmax = Vmax/(1 + [I]/Ki)
Km = substrate concentration at 1/2 Vmax
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