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Michaelis Constant in Enzyme Kinetics Formulas

The Michaelis Constant is numerically equal to the substrate concentration at which the reaction rate is half of the maximum rate of the system. And is denoted by KM. Michaelis Constant is usually measured using the Mole per Liter for Molar Concentration. Note that the value of Michaelis Constant is always negative.

Formulas to find Michaelis Constant in Enzyme Kinetics

fxMichaelis Constant for Competitive Inhibition of Enzyme Catalysis​Go
fxMichaelis Constant in Competitive Inhibition given Enzyme Substrate Complex Concentration​Go
fxMichaelis Constant in Competitive Inhibition given Maximum Rate of System​Go
fxMichaelis Constant in Presence of Uncompetitive Inhibitor​Go
fxMichaelis Constant from Michaelis Menten kinetics equation​Go
fxMichaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration​Go
fxMichaelis Constant at Low Substrate Concentration​Go
fxMichaelis Constant given Maximum Rate at Low Substrate Concentration​Go
fxMichaelis Constant given Forward, Reverse, and Catalytic Rate Constants​Go
fxMichaelis Constant given Modifying Factor in Michaelis Menten Equation​Go
fxMichaelis Menten constant given Apparent Michaelis Menten Constant​Go

Enzyme Kinetics formulas that make use of Michaelis Constant

fxInitial Reaction Rate in Michaelis Menten kinetics Equation​Go
fxInitial Reaction Rate given Catalytic Rate Constant and Initial Enzyme Concentration​Go
fxInitial Reaction Rate at Low Substrate Concentration​Go
fxInitial Reaction Rate at Low Substrate Concentration terms of Maximum Rate​Go
fxMaximum Rate of System at Low Substrate Concentration​Go
fxApparent Michaelis Menten constant given Inhibitor's Dissociation Constant​Go
fxDissociation Constant given Enzyme Substrate Complex Concentration​Go
fxSubstrate Concentration of Competitive Inhibition of Enzyme Catalysis​Go
fxSubstrate Concentration in Competitive Inhibition given Maximum Rate of System​Go
fxSubstrate Concentration in Competitive Inhibition given Enzyme Substrate Complex Concentration​Go
fxSubstrate Concentration given Modifying Factor in Michaelis Menten Equation​Go
fxDissociation Constant for Competitive Inhibition of Enzyme Catalysis​Go
fxDissociation Constant in Competitive Inhibition given Maximum Rate of System​Go
fxInitial Rate of System of Competitive Inhibition of Enzyme Catalysis​Go
fxInitial Enzyme Concentration of Competitive Inhibition of Enzyme Catalysis​Go
fxInhibitor Concentration for Competitive Inhibition of Enzyme Catalysis​Go
fxFinal Rate Constant for Competitive Inhibition of Enzyme Catalysis​Go
fxEnzyme Substrate Complex Concentration for Competitive Inhibition of Enzyme Catalysis​Go
fxInitial Enzyme in Competitive Inhibition given Enzyme Substrate Complex Concentration​Go
fxInhibitor Concentration in Competitive Inhibition given Enzyme Substrate Complex Concentration​Go
fxInitial Rate in Competitive Inhibition given Maximum Rate of system​Go
fxInhibitor Concentration in Competitive Inhibition given Maximum Rate of System​Go
fxSubstrate Concentration in presence of Uncompetitive Inhibitor​Go
fxInitial Reaction Rate in presence of Uncompetitive Inhibitor​Go
fxMaximum Reaction Rate in Presence of Uncompetitive Inhibitor​Go
fxEnzyme Substrate Modifying Factor in Presence of Uncompetitive Inhibitor​Go
fxMaximum Rate of System from Michaelis Menten Kinetics equation​Go
fxSubstrate Concentration from Michaelis Menten Kinetics Equation​Go
fxCatalytic Rate Constant from Michaelis Menten Kinetics Equation​Go
fxEnzyme Concentration from Michaelis Menten Kinetics equation​Go
fxForward Rate Constant given Michaelis Constant​Go
fxCatalytic rate constant given Michaelis Constant​Go
fxInitial Reaction Rate of Enzyme given Modifying factor in Michaelis Menten equation​Go
fxMaximum Rate given Modifying Factor in Michaelis Menten Equation​Go
fxModifying Factor of Enzyme in Michaelis Menten Equation​Go
fxModifying Factor of Enzyme Substrate Complex in Michaelis Menten Equation​Go
fxInhibitor Concentration given Apparent Michaelis Menten Constant​Go
fxInhibitor's Dissociation Constant given Michaelis Menten Constant​Go
fxSubstrate Concentration given Catalytic Rate Constant and Initial Enzyme Concentration​Go
fxInitial Enzyme Concentration at Low Substrate Concentration​Go
fxSubstrate Concentration if Michaelis Constant is very Large than Substrate Concentration​Go
fxSubstrate Concentration given Maximum Rate at Low Concentration​Go
fxCatalytic Rate Constant at Low Substrate Concentration​Go
fxReverse Rate Constant given Michaelis Constant​Go

List of variables in Enzyme Kinetics formulas

fx Final Rate Constant ​Go
fx Initial Enzyme Concentration ​Go
fx Substrate Concentration ​Go
fx Initial Reaction Rate ​Go
fx Inhibitor Concentration ​Go
fx Enzyme Inhibitor Dissociation Constant ​Go
fx Enzyme Substrate Complex Concentration ​Go
fx Maximum Rate ​Go
fx Enzyme Substrate Modifying Factor ​Go
fx Catalytic Rate Constant ​Go
fx Reverse Rate Constant ​Go
fx Forward Rate Constant ​Go
fx Enzyme Modifying Factor ​Go
fx Apparent Michaelis Constant ​Go

FAQ

What is the Michaelis Constant?
The Michaelis Constant is numerically equal to the substrate concentration at which the reaction rate is half of the maximum rate of the system. Michaelis Constant is usually measured using the Mole per Liter for Molar Concentration. Note that the value of Michaelis Constant is always negative.
Can the Michaelis Constant be negative?
Yes, the Michaelis Constant, measured in Molar Concentration can be negative.
What unit is used to measure Michaelis Constant?
Michaelis Constant is usually measured using the Mole per Liter[mol/L] for Molar Concentration. Mole per Cubic Meter[mol/L], Mole per Cubic Millimeter[mol/L], Kilomole per Cubic Meter[mol/L] are the few other units in which Michaelis Constant can be measured.
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