A.Your summer research project is to study the kinetics of a newly discovered enzyme. You have...
A.Your summer research project is to study the kinetics of a newly discovered enzyme. You have already identified the substrate and optimal reaction conditions.
Propose how you would set up experiments to characterize the maximum velocity (Vmax) and Michaelis constant (KM) of this enzyme, assuming that it will display Michaelis-Menten kinetics.
B. How would you compare the specificity of the enzyme for its natural substrate versus its specificity for a chromogenic substrate analog that was synthesized in the lab
Homework Answers
![eine uyakon ( ). equation As the enzyme follows equation, the working Micheals - Menten [1] = substrate v. uman [s] KM = Mich](http://img.homeworklib.com/questions/9ac6add0-d7f7-11eb-9fbc-4f11862d79b7.png?x-oss-process=image/resize,w_560)
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A.Your summer research project is to study the kinetics of a
newly discovered enzyme. You have...
The kinetics of enzyme catalyzed reactions can be described the Michaelis-Menten equation and the Eadie-Hofstee equatio...
The kinetics of enzyme catalyzed reactions can be described the Michaelis-Menten equation and the Eadie-Hofstee equation as shown below: V0 = (-Km) V0 / [S] + Vmax a). Please derive the Eadie-Hofstee equation starting from the Michaelis-Menten equation. b). The Vmax and Km of the enzyme catalyzed reaction can be derived from a plot of V0 versus V0/[S]. Please draw one of these plots and explain how do you use it to derive Vmax and Km. c). Please draw a...
4. What does enzyme kinetics study? What is Vo, km, Vmax, Kcat, respectively? If you plot...
4. What does enzyme kinetics study? What is Vo, km, Vmax, Kcat, respectively? If you plot Vo versus (substrate), or 1/Vo versus 1/[substrate], how the curves would look like, and how to get Vmax and Km values?
7. a) In an enzyme catalyzed reaction which follows the Michaelis-Menten kinetics. The substrate ...
7. a) In an enzyme catalyzed reaction which follows the Michaelis-Menten kinetics. The substrate concentration (Km, Michaelis constant) needed to reach 50% of the maximum reaction velocity (Vmax) is 20 μΜ. What substrate concentration is required to obtain at least 75% of the maximum reaction velocity? Show the work to get full points. (5 points) b) You want to load 10 μg of protein in 15 μL into one of the 10% polyacrylamide gel well. The protein needs to be...
To determine the kinetic characteristics of an enzyme you used 1 nmol/L of enzyme in a...
To determine the kinetic characteristics of an enzyme you used 1 nmol/L of enzyme in a series of assays where you measured the rate of reactions as you varied the concentration of substrate in each assay (Table A). Estimate from a Michaelis-Menten plot approximate values for Vmax, KM, Kcat, and the specificity constant for this enzyme and substrate. (The only information that is given is this paragraph and the table below). Table 1: [S] (μM) v (μmol/L/min) 0 0 5...
Enzyme kinetics: You recently joined a new research group, and in your first week you successfully...
Enzyme kinetics: You recently joined a new research group, and in your first week you successfully discover a new version of an enzyme called happyase, which you name happyase*, that catalyzes the chemical reaction: HAPPY ↔ SAD You begin devising ways to characterize the enzyme. (5 points total, 2 each for A, B and 1 for C). In the first experiment, with [Et] at 4 nM, you find that the Vmax is 1.6 mM/s. Based on this experiment, what is...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the concentration of the substrate of the reaction ([S]). In Damon's Michaelis-Menten experiment, the highest concentration of substrate used was 500 UM. What do you think will happen to the reaction velocity if higher concentrations of substrate were used? Select one: a. Vo will reach a plateau at higher (S) values O b. Vo will increase exponentially as (S) is increased O c. Vo will...
Enzyme kinetics: You recently joined a new research group, and in your first week you successfully...
Enzyme kinetics: You recently joined a new research group, and in your first week you successfully discover a new version of an enzyme called happyase, which you name happyase*, that catalyzes the chemical reaction: HAPPY ↔ SAD You begin devising ways to characterize the enzyme. (5 points total, 2 each for A, B and 1 for C). In the first experiment, with [Et] at 4 nM, you find that the Vmax is 1.6 mM/s. Based on this experiment, what is...
(a) After spending a few weeks isolating the enzyme, you have enough pure enzyme to do...
(a) After spending a few weeks isolating the enzyme, you have enough pure enzyme to do some kinetic experiments, using a chromogenic substrate. The product produced by the enzyme from this substrate has an extinction coefficient of 20,500cm−1M−1 at 486nm, whereas the substrate does not absorb light significantly at this wavelength. For these experiments, you have used an enzyme concentration of 1.75µg/mL and monitored the change of absorbance at 486nm, using cuvettes with a path length of 1cm. The initial...
Question 2: You have just discovered a new enzyme that catalyzes the degradation of cellulose to glucose. You hope to commercialize this enzyme ultimately to invent a process for biofuel manufact...
Question 2: You have just discovered a new enzyme that catalyzes the degradation of cellulose to glucose. You hope to commercialize this enzyme ultimately to invent a process for biofuel manufacture. In order to determine how efficient the enzyme is and how fast the enzyme catalyzes the reaction, you have to perform some basic enzyme kinetics. Plot the following enzyme data for the enzyme catalyzed reaction and determine the Km and Vmax. Show your graph with correct units on the...
Interpret the data above 1. What is the aporoximate Km and Vmax (units matter) 2.Briefly explain...
Interpret the data above
1. What is the aporoximate Km and Vmax (units matter)
2.Briefly explain how you found each
3.if you used 0.020 microM enzyme in your studies, what is
kcat in units of s^-1? Show your work units matter
4. Does this enzyme appear to display cooperativity? Explain
how you came up to that conclusion.
Directions: Below are data from 4 separate experiments that you must analyze/evaluate. Using the information from all 4 experiments, you must then propose...
4. What does enzyme kinetics study? What is Vo, km, Vmax, Kcat, respectively? If you plot Vo versus (substrate), or 1/Vo versus 1/[substrate], how the curves would look like, and how to get Vmax and Km values?
7. a) In an enzyme catalyzed reaction which follows the Michaelis-Menten kinetics. The substrate concentration (Km, Michaelis constant) needed to reach 50% of the maximum reaction velocity (Vmax) is 20 μΜ. What substrate concentration is required to obtain at least 75% of the maximum reaction velocity? Show the work to get full points. (5 points) b) You want to load 10 μg of protein in 15 μL into one of the 10% polyacrylamide gel well. The protein needs to be...
The key factor that controls the initial rate of an enzyme catalysed reaction (Vo) is the concentration of the substrate of the reaction ([S]). In Damon's Michaelis-Menten experiment, the highest concentration of substrate used was 500 UM. What do you think will happen to the reaction velocity if higher concentrations of substrate were used? Select one: a. Vo will reach a plateau at higher (S) values O b. Vo will increase exponentially as (S) is increased O c. Vo will...
Question 2: You have just discovered a new enzyme that catalyzes the degradation of cellulose to glucose. You hope to commercialize this enzyme ultimately to invent a process for biofuel manufacture. In order to determine how efficient the enzyme is and how fast the enzyme catalyzes the reaction, you have to perform some basic enzyme kinetics. Plot the following enzyme data for the enzyme catalyzed reaction and determine the Km and Vmax. Show your graph with correct units on the...
Interpret the data above
1. What is the aporoximate Km and Vmax (units matter)
2.Briefly explain how you found each
3.if you used 0.020 microM enzyme in your studies, what is
kcat in units of s^-1? Show your work units matter
4. Does this enzyme appear to display cooperativity? Explain
how you came up to that conclusion.
Directions: Below are data from 4 separate experiments that you must analyze/evaluate. Using the information from all 4 experiments, you must then propose...
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