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sci.enzyme-kinetics-inhibition-Ki Calculator
Calculates enzyme inhibition constant Ki and type (competitive/uncompetitive/mixed) from kinetic data at different substrate and inhibitor concentrations. Competitive inhibition increases apparent Km with no change to Vmax; uncompetitive decreases both — Dixon plot (1/v vs [I]) linearises the data for Ki determination.
Inputs
Km Mm
Reference formula or conversion factor shown for context.
Vmax Umol Min
Reference formula or conversion factor shown for context.
S Mm
Amount of solute per unit volume. Higher concentration = more solute dissolved.
I Mm
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Ki Mm
Reference formula or conversion factor shown for context.
Inhibition Type
Reference formula or conversion factor shown for context.
Results
inhibited reaction rate v_i (μmol/min)
The value at the specified point or condition.
uninhibited rate v0 (μmol/min)
The value at the specified point or condition.
% inhibition
Sample size or count used in the calculation.
inhibition factor α = 1 + I/Ki
A dimensionless multiplier applied in the calculation.
Michaelis-Menten v = Vmax·S/(Km_app + S)
Sample size or count used in the calculation.
inhibition type impact
The classification or type assigned based on the inputs.