Fx Copy
LaTeX Copy
The Michaelis Constant is numerically equal to the substrate concentration at which the reaction rate is half of the maximum rate of the system. Check FAQs
KM=S((kcat[E0])-V0)V0
KM - Michaelis Constant?S - Substrate Concentration?kcat - Catalytic Rate Constant?[E0] - Initial Enzyme Concentration?V0 - Initial Reaction Rate?

Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration Example

With values
With units
Only example

Here is how the Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration equation looks like with Values.

Here is how the Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration equation looks like with Units.

Here is how the Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration equation looks like.

215.1667Edit=1.5Edit((0.65Edit100Edit)-0.45Edit)0.45Edit
You are here -
HomeIcon Home » Category Chemistry » Category Chemical Kinetics » Category Enzyme Kinetics » fx Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration

Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration Solution

Follow our step by step solution on how to calculate Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration?

FIRST Step Consider the formula
KM=S((kcat[E0])-V0)V0
Next Step Substitute values of Variables
KM=1.5mol/L((0.65s⁻¹100mol/L)-0.45mol/L*s)0.45mol/L*s
Next Step Convert Units
KM=1500mol/m³((0.65s⁻¹100000mol/m³)-450mol/m³*s)450mol/m³*s
Next Step Prepare to Evaluate
KM=1500((0.65100000)-450)450
Next Step Evaluate
KM=215166.666666667mol/m³
Next Step Convert to Output's Unit
KM=215.166666666667mol/L
LAST Step Rounding Answer
KM=215.1667mol/L

Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration Formula Elements

Variables
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.
Symbol: KM
Measurement: Molar ConcentrationUnit: mol/L
Note: Value can be positive or negative.
Substrate Concentration
The Substrate Concentration is the number of moles of substrate per liter solution.
Symbol: S
Measurement: Molar ConcentrationUnit: mol/L
Note: Value can be positive or negative.
Catalytic Rate Constant
The Catalytic Rate Constant is defined as the rate constant for conversion of the enzyme-substrate complex to enzyme and product.
Symbol: kcat
Measurement: First Order Reaction Rate ConstantUnit: s⁻¹
Note: Value can be positive or negative.
Initial Enzyme Concentration
The Initial Enzyme Concentration is defined as the concentration of enzyme at the start of the reaction.
Symbol: [E0]
Measurement: Molar ConcentrationUnit: mol/L
Note: Value should be greater than 0.
Initial Reaction Rate
The Initial Reaction Rate is defined as the initial speed at which a chemical reaction takes place.
Symbol: V0
Measurement: Reaction RateUnit: mol/L*s
Note: Value can be positive or negative.

Other Formulas to find Michaelis Constant

​Go Michaelis Constant from Michaelis Menten kinetics equation
KM=S(Vmax-V0V0)
​Go Michaelis Constant at Low Substrate Concentration
KM=kcat[E0]SV0
​Go Michaelis Constant given Maximum Rate at Low Substrate Concentration
KM=VmaxSV0
​Go Michaelis Constant given Forward, Reverse, and Catalytic Rate Constants
KM=kr+kcatkf

Other formulas in Michaelis Menten Kinetics Equation category

​Go Maximum Rate of System from Michaelis Menten Kinetics equation
Vmax=V0(KM+S)S
​Go Substrate Concentration from Michaelis Menten Kinetics Equation
S=KMV0Vmax-V0
​Go Catalytic Rate Constant from Michaelis Menten Kinetics Equation
kcat_MM=V0(KM+S)[E0]S
​Go Enzyme Concentration from Michaelis Menten Kinetics equation
[Ei]=V0(KM+S)kcatS

How to Evaluate Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration?

Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration evaluator uses Michaelis Constant = (Substrate Concentration*((Catalytic Rate Constant*Initial Enzyme Concentration)-Initial Reaction Rate))/Initial Reaction Rate to evaluate the Michaelis Constant, The Michaelis constant given catalytic rate constant and initial enzyme concentration formula is defined as the relation with initial enzyme and substrate concentration and also with initial reaction rate. Michaelis Constant is denoted by KM symbol.

How to evaluate Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration using this online evaluator? To use this online evaluator for Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration, enter Substrate Concentration (S), Catalytic Rate Constant (kcat), Initial Enzyme Concentration ([E0]) & Initial Reaction Rate (V0) and hit the calculate button.

FAQs on Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration

What is the formula to find Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration?
The formula of Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration is expressed as Michaelis Constant = (Substrate Concentration*((Catalytic Rate Constant*Initial Enzyme Concentration)-Initial Reaction Rate))/Initial Reaction Rate. Here is an example- 0.215167 = (1500*((0.65*100000)-450))/450.
How to calculate Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration?
With Substrate Concentration (S), Catalytic Rate Constant (kcat), Initial Enzyme Concentration ([E0]) & Initial Reaction Rate (V0) we can find Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration using the formula - Michaelis Constant = (Substrate Concentration*((Catalytic Rate Constant*Initial Enzyme Concentration)-Initial Reaction Rate))/Initial Reaction Rate.
What are the other ways to Calculate Michaelis Constant?
Here are the different ways to Calculate Michaelis Constant-
  • Michaelis Constant=Substrate Concentration*((Maximum Rate-Initial Reaction Rate)/Initial Reaction Rate)OpenImg
  • Michaelis Constant=(Catalytic Rate Constant*Initial Enzyme Concentration*Substrate Concentration)/Initial Reaction RateOpenImg
  • Michaelis Constant=(Maximum Rate*Substrate Concentration)/Initial Reaction RateOpenImg
Can the Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration be negative?
Yes, the Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration, measured in Molar Concentration can be negative.
Which unit is used to measure Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration?
Michaelis Constant given Catalytic Rate Constant and Initial Enzyme Concentration 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 given Catalytic Rate Constant and Initial Enzyme Concentration can be measured.
Copied!