Enzyme Km, Vmax & Kcat Calculation Using Excel Solver (Easy Method)

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  • เผยแพร่เมื่อ 27 ต.ค. 2024

ความคิดเห็น • 50

  • @bioinfoxpert
    @bioinfoxpert  2 ปีที่แล้ว

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  • @bioinfoxpert
    @bioinfoxpert  3 ปีที่แล้ว +1

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  • @Sree613
    @Sree613 2 ปีที่แล้ว +2

    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
      @bioinfoxpert  2 ปีที่แล้ว +1

      Dear Sreeivas, Many thanks for your reply.

    • @Sree613
      @Sree613 2 ปีที่แล้ว

      @@bioinfoxpert Welcome and I thank you for your useful video to calculate kinetic parameters.

    • @srimantadash7435
      @srimantadash7435 ปีที่แล้ว +1

      Thank you so much sir 🙏

  • @mehwishahsan2194
    @mehwishahsan2194 3 ปีที่แล้ว +1

    Comprehensively explained.

  • @maheerzaheer9179
    @maheerzaheer9179 3 ปีที่แล้ว +1

    Nicely elaborated ...Thanks Sir!!

  • @joseluisurban4928
    @joseluisurban4928 3 ปีที่แล้ว +1

    It's very useful, just the video quality got a little problem, but congratulations and thank you

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      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
      @bioinfoxpert  3 ปีที่แล้ว

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  • @kadirioseni1882
    @kadirioseni1882 2 ปีที่แล้ว +2

    How did you get the total enzyme concentration

    • @Sree613
      @Sree613 2 ปีที่แล้ว +1

      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

  • @budikurniawan5208
    @budikurniawan5208 3 ปีที่แล้ว +1

    omg, I know this trick after graduated, we don't need to lineweaver burk equition to determine the Km and Vmax value right?

  • @srimantadash7435
    @srimantadash7435 2 ปีที่แล้ว +2

    Sir,how to calculate the enzyme concentration. My enzyme is 1000U/mg.can you help me.

    • @Sree613
      @Sree613 2 ปีที่แล้ว

      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

  • @amnamanzoor2376
    @amnamanzoor2376 3 ปีที่แล้ว +1

    sir, should we suppose the value of Et like yu did or we have to find it out?

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว +1

      Its 0.5 M for each

    • @joeyyjoy6655
      @joeyyjoy6655 2 ปีที่แล้ว

      @@bioinfoxpert so the value is fixed to 0.5M or we have to find out depending on the question?

  • @sciencefacts7503
    @sciencefacts7503 3 ปีที่แล้ว +1

    Learn a alot !Thank U so much Sir

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      So nice of you

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      If you want to learn Bioinformatics from scratch then take our course on Udemy
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  • @shanzaakhtar5481
    @shanzaakhtar5481 3 ปีที่แล้ว +1

    Well explained 👌

  • @hamzatahir2319
    @hamzatahir2319 3 ปีที่แล้ว +1

    Very informative.

  • @mauriciomoyaburdiles3590
    @mauriciomoyaburdiles3590 ปีที่แล้ว +1

    Lo amo caballero

    • @bioinfoxpert
      @bioinfoxpert  ปีที่แล้ว

      We love you too. Many thanks for comment

  • @RajnandaniKashyap
    @RajnandaniKashyap 3 ปีที่แล้ว +1

    I need some help with my data..can you help me??

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      How can i help you please let me know

    • @RajnandaniKashyap
      @RajnandaniKashyap 3 ปีที่แล้ว +1

      @@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
      @bioinfoxpert  3 ปีที่แล้ว +1

      Datascienceandbioinfo@gmail.com

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      Please feel free to contact me

    • @RajnandaniKashyap
      @RajnandaniKashyap 3 ปีที่แล้ว +1

      What is effective molarity? How do we calculate kuncat for a reaction?

  • @CurioKids-t1e
    @CurioKids-t1e 7 หลายเดือนก่อน

    thank you so much

    • @bioinfoxpert
      @bioinfoxpert  7 หลายเดือนก่อน

      You're welcome!

  • @ritasagealvarez9306
    @ritasagealvarez9306 ปีที่แล้ว +1

    lov u

  • @MadhanaGopalB
    @MadhanaGopalB 3 ปีที่แล้ว

    It's Menten. Not Mental! 😂

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      Thanks for corrections

    • @bioinfoxpert
      @bioinfoxpert  3 ปีที่แล้ว

      If you want to learn Bioinformatics from scratch then take our course on Udemy
      Course Link: bit.ly/2SFH0fz
      The course is with 30 days Money Back Guarantee