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Enzyme Km, Vmax & Kcat Calculation Using Excel Solver (Easy Method)
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In this video, I have explained how to calculate the value of Km and Vmax for an enzyme-substrate reaction using the Michaelis-Menten equation. We will use Excel, a common data analysis software to calculate Vmax, Km, Kcat. Hopefully, you will like this video. In excel we used the line plot, simple statistics and solver to get the actual Km, Vmax and Kcat value of enzyme kinetics.
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Nicely elaborated ...Thanks Sir!!
@bioinfoxpert
3 жыл бұрын
Most welcome!
Comprehensively explained.
@bioinfoxpert
3 жыл бұрын
Thanks
Very informative.
@bioinfoxpert
3 жыл бұрын
Glad you think so!
Learn a alot !Thank U so much Sir
@bioinfoxpert
3 жыл бұрын
So nice of you
@bioinfoxpert
3 жыл бұрын
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Well explained 👌
@bioinfoxpert
3 жыл бұрын
Glad you liked it
Lo amo caballero
@bioinfoxpert
Жыл бұрын
We love you too. Many thanks for comment
thank you so much
@bioinfoxpert
4 ай бұрын
You're welcome!
It's very useful, just the video quality got a little problem, but congratulations and thank you
@bioinfoxpert
3 жыл бұрын
Sorry about video quality. Can you please let us know which think is lacking in video? We really want to improve the quality and content of our video tutorials? Many thanks you watched our video and highlighted the issue
@bioinfoxpert
3 жыл бұрын
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omg, I know this trick after graduated, we don't need to lineweaver burk equition to determine the Km and Vmax value right?
@bioinfoxpert
2 жыл бұрын
Yes you are right
To calculate enzyme concentration [E] in Kcat calculation. Kcat = Vmax/[E] Example: Vmax = 200 umol/mg/min Enzyme concentration = the amount of the enzyme used in the assay or reaction from Vmax - its 1 mg. so what is the concentration of enzyme [E] in 1 mg (amount of enzyme/mg) lets say its molecular weight is 28KDa = 28000 Da = 28000 gms/mole = 28000 mg/mmol = 28mg/umol (1 mole = 1000 mmol, 1 mmol = 1000 umol) 1 mg of enzyme = 1/28 umol = 0.0357 umol so concentration of enzyme [E] = 0.0357 umol/mg Kcat = Vmax/[E] =200 umol.mg-1.min-1/0.0357 umol.mg-1 Kcat = 5602 min -1
@bioinfoxpert
Жыл бұрын
Dear Sreeivas, Many thanks for your reply.
@Sree613
Жыл бұрын
@@bioinfoxpert Welcome and I thank you for your useful video to calculate kinetic parameters.
@srimantadash7435
Жыл бұрын
Thank you so much sir 🙏
sir, should we suppose the value of Et like yu did or we have to find it out?
@bioinfoxpert
3 жыл бұрын
Its 0.5 M for each
@joeyyjoy6655
2 жыл бұрын
@@bioinfoxpert so the value is fixed to 0.5M or we have to find out depending on the question?
Sir,how to calculate the enzyme concentration. My enzyme is 1000U/mg.can you help me.
@Sree613
Жыл бұрын
To calculate enzyme concentration [E] in Kcat calculation. Kcat = Vmax/[E] Example: Vmax = 200 umol/mg/min Enzyme concentration = the amount of the enzyme used in the assay or reaction from Vmax - its 1 mg. so what is the concentration of enzyme [E] in 1 mg (amount of enzyme/mg) lets say its molecular weight is 28KDa = 28000 Da = 28000 gms/mole = 28000 mg/mmol = 28mg/umol (1 mole = 1000 mmol, 1 mmol = 1000 umol) 1 mg of enzyme = 1/28 umol = 0.0357 umol so concentration of enzyme [E] = 0.0357 umol/mg Kcat = Vmax/[E] =200 umol.mg-1.min-1/0.0357 umol.mg-1 Kcat = 5602 min -1
How did you get the total enzyme concentration
@Sree613
Жыл бұрын
To calculate enzyme concentration [E] in Kcat calculation. Kcat = Vmax/[E] Example: Vmax = 200 umol/mg/min Enzyme concentration = the amount of the enzyme used in the assay or reaction from Vmax - its 1 mg. so what is the concentration of enzyme [E] in 1 mg (amount of enzyme/mg) lets say its molecular weight is 28KDa = 28000 Da = 28000 gms/mole = 28000 mg/mmol = 28mg/umol (1 mole = 1000 mmol, 1 mmol = 1000 umol) 1 mg of enzyme = 1/28 umol = 0.0357 umol so concentration of enzyme [E] = 0.0357 umol/mg Kcat = Vmax/[E] =200 umol.mg-1.min-1/0.0357 umol.mg-1 Kcat = 5602 min -1
lov u
@mauriciomoyaburdiles3590
Жыл бұрын
increible
@bioinfoxpert
Жыл бұрын
Love you too
@bioinfoxpert
Жыл бұрын
Thanks
I need some help with my data..can you help me??
@bioinfoxpert
3 жыл бұрын
How can i help you please let me know
@RajnandaniKashyap
3 жыл бұрын
@@bioinfoxpert I have my data for multiple substrate reaction. I am not able to analyze my data. I need help to understand few basic concepts. Can you share your email address so that i can share the data?
@bioinfoxpert
3 жыл бұрын
Datascienceandbioinfo@gmail.com
@bioinfoxpert
3 жыл бұрын
Please feel free to contact me
@RajnandaniKashyap
3 жыл бұрын
What is effective molarity? How do we calculate kuncat for a reaction?
It's Menten. Not Mental! 😂
@bioinfoxpert
3 жыл бұрын
Thanks for corrections
@bioinfoxpert
3 жыл бұрын
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