An enzyme kinetics experiment is performed with the enzyme Imaginase, which converts Horses into Unicorns with...
An enzyme kinetics experiment is performed with the enzyme Imaginase, which converts Horses into Unicorns with a known Kcat of 300 s-. In an experiment with (Imaginase) at 40 nM and (Horses) at 10 uM, the researchers find that Vo = 4 uM/s. What is the Km of Imaginase for its substrate Horses?
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An enzyme kinetics experiment is performed with the enzyme
Imaginase, which converts Horses into Unicorns with...
Values for an Enzyme and a substrate are: Km=4 uM and kcat=20/min. For an experiment where...
Values for an Enzyme and a substrate are: Km=4 uM and kcat=20/min. For an experiment where [S]=6mM, it was found that Vo=480nM/min. What was the enzyme concentration? Give your answer in nM. Using the same kcat and Km as the previous question, if [Et]=0.5uM gives a Vo=5 uM/min, what wat the [S]? Give your answer in uM. reaction is run with the kcat=20/min and the Km=4uM. Use the enzyme concentration from question 1 above. A very strong inhibitor is added creating...
For her undergraduate project, Jessica studied an enzyme that catalyzes the reaction A B. For substrate...
For her undergraduate project, Jessica studied an enzyme that catalyzes the reaction A B. For substrate A, she determined 30 min that Km 3.0 HM and kcat Jessica graduated and her project has been passed on to you. Unfortunately, Jessica was so busy that she sometimes forgot to record all of the details of an assay in her lab notebook. Your mentor suggests that you try to back calculate some of the missing concentration values. Assume that the enzyme follows...
Enzyme Kinetics - Farrell/Taylor 133 3. Enzyme X has a molecular weight of 48,000. It converts...
Enzyme Kinetics - Farrell/Taylor 133 3. Enzyme X has a molecular weight of 48,000. It converts substrate Z into product Y. Z absorbs at 340 nm, and Y absorbs at 480 nm. a. At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time? b. If Vmax = 60 pmol/min and you use 400L of a 0.1 mg/mL solu- tion of enzyme, what is the turnover number? 4....
An enzyme that follows Michaelis-Menten kinetics has a initial velocity of 300 nM/s at a substrate...
An enzyme that follows Michaelis-Menten kinetics has a initial velocity of 300 nM/s at a substrate concentration of 30 uM. The maximum velocity of 400 nM/sec. What is the Km for this enzyme in uM? (Give your answer as a number only. Type your response
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?
Part A An enzyme that follows Michaelis-Menten kinetics has a KM value of 10.0 uM and...
Part A An enzyme that follows Michaelis-Menten kinetics has a KM value of 10.0 uM and a kcat value of 201 s-1. At an initial enzyme concentration of 0.0100 uM, the initial reaction velocity was found to be 1.07 x 10- uM/s. What was the initial concentration of the substrate, [S], used in the reaction ? Express your answer in micromolar to three significant figures. ► View Available Hint(s) PO ALO O O ? [S]; = MM UM
Applying the Michaelis-Menten Equation II Another enzyme is found that catalyzes the reaction A <===> B...
Applying the Michaelis-Menten Equation II Another enzyme is found that catalyzes the reaction A <===> B Researchers find that the K for the substrate A is 4 uM, and the kcat is 20 min^-1 (a) In an experiment, [A] = 6 mM, and the initial velocity, Vo was 480 nM min^-1 What was the [Et] used in the experiment? (b) In another experiment, [Et] 0.5uM, and the measured Vo=5uM min^-1 What was the [A] used in the experiment? ( c)...
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...
An enzyme catalyzes the reaction M↽−−⇀N . An enzyme catalyzes the reaction M = N. The...
An enzyme catalyzes the reaction M↽−−⇀N .
An enzyme catalyzes the reaction M = N. The enzyme is present at a concentration of 3.5 nM, and the Vmax is 1.9 uM -. The Km for substrate M is 2.9 uM. Calculate kcat kcat = 542.86 What values of Vmax and Km would be observed in the presence of sufficient amounts of an uncompetitive inhibitor to generate an a' of 1.5? apparent Vmax = 0.526 UM s-1 apparent Km = 1.2
An enzyme catalyzes the reaction M N. The enzyme is present at a concentration of 3.5...
An enzyme catalyzes the reaction M N. The enzyme is present at a concentration of 3.5 nM, and the Vmax is 2.9 PM s-. The Km for substrate M is 6.5 MM. Calculate kcat kcat = 1 What values of Vmax and Km would be observed in the presence of sufficient amounts of an uncompetitive inhibitor to generate an a' of 1.3? apparent Vmax = UM S-1 apparent Km = UM
For her undergraduate project, Jessica studied an enzyme that catalyzes the reaction A B. For substrate A, she determined 30 min that Km 3.0 HM and kcat Jessica graduated and her project has been passed on to you. Unfortunately, Jessica was so busy that she sometimes forgot to record all of the details of an assay in her lab notebook. Your mentor suggests that you try to back calculate some of the missing concentration values. Assume that the enzyme follows...
Enzyme Kinetics - Farrell/Taylor 133 3. Enzyme X has a molecular weight of 48,000. It converts substrate Z into product Y. Z absorbs at 340 nm, and Y absorbs at 480 nm. a. At what wavelength do you measure the change in absorbance to assay for enzyme X? Does the absorbance increase or decrease over time? b. If Vmax = 60 pmol/min and you use 400L of a 0.1 mg/mL solu- tion of enzyme, what is the turnover number? 4....
An enzyme that follows Michaelis-Menten kinetics has a initial velocity of 300 nM/s at a substrate concentration of 30 uM. The maximum velocity of 400 nM/sec. What is the Km for this enzyme in uM? (Give your answer as a number only. Type your response
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?
Part A An enzyme that follows Michaelis-Menten kinetics has a KM value of 10.0 uM and a kcat value of 201 s-1. At an initial enzyme concentration of 0.0100 uM, the initial reaction velocity was found to be 1.07 x 10- uM/s. What was the initial concentration of the substrate, [S], used in the reaction ? Express your answer in micromolar to three significant figures. ► View Available Hint(s) PO ALO O O ? [S]; = MM UM
An enzyme catalyzes the reaction M↽−−⇀N .
An enzyme catalyzes the reaction M = N. The enzyme is present at a concentration of 3.5 nM, and the Vmax is 1.9 uM -. The Km for substrate M is 2.9 uM. Calculate kcat kcat = 542.86 What values of Vmax and Km would be observed in the presence of sufficient amounts of an uncompetitive inhibitor to generate an a' of 1.5? apparent Vmax = 0.526 UM s-1 apparent Km = 1.2
An enzyme catalyzes the reaction M N. The enzyme is present at a concentration of 3.5 nM, and the Vmax is 2.9 PM s-. The Km for substrate M is 6.5 MM. Calculate kcat kcat = 1 What values of Vmax and Km would be observed in the presence of sufficient amounts of an uncompetitive inhibitor to generate an a' of 1.3? apparent Vmax = UM S-1 apparent Km = UM
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