Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 10QP
- b. Compounds A, B, C, and D are known to be intermediates in the pathway for production of protein E. To determine where the block in protein-E production occurred in each individual, the various intermediates were given to each individual’s cel Is in culture. After a few weeks of growth with the intermediate, the cells were assayed for the production of protein E. The results for each individual’s cells are given in the following table. A plus sign means that protein E was produced after the cells were given the intermediate listed at the top of the column. A minus sign means that the cells still could not produce protein E even after being exposed to the intermediate at the top of the column.
Denote the point in the pathway in which each individual is blocked.
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A. Lineweaver-Burk plot of the enzyme with increasing amounts of substrate in the absence
or the presence of the inhibitor is shown below.
Graph A : x-intercept
Graph B : x-intercept = - 0.012, y-intercept = 0.8
Graph C : x-intercept = - 0.027, y-intercept = 0.8
Graph D : x-intercept = - 0.039, y-intercept = 0.8
- 0.007, y-intercept = 0.8
Graph A
4
Graph B
Graph C
Graph D
1
-0,04
-0,02
0,00
0,02
0,04
1/[Substrate] (uM)
(i) Which graph indicates an enzymatic reaction without inhibitor?
(ii) Which type of inhibitor is it? Briefly explain.
(iii) Which graph indicates the highest concentration of inhibitor?
(iv) Calculate the Vmax and Km of the graph showing an enzymatic reaction with the lowest
concentration of inhibitor. Show the steps of calculation and unit in your answers.
Keep 2 decimal places in your answers.
1/Rate (umol/min)
a. An oligopeptide ALVGALGATPTPQMWSHSWRGVSIKS was digested with trypsin.Which method would be most appropriate for separating the products: ion exchange or gel filtration chromatography? Explain.b. Suppose that the peptide was digested with cyanogen bromide. What would be the optimal separation technique? Explain
This is an SDS-PAGE gel of the protein insulin. The first lane is the molecular weight standard marker. The second lane NR is the native, non-reduced protein (MW 5.7kDa). The third lane is the protein treated with beta-mercaptoethanol. Please explain what is shown in the NR lane versus the R lane.
Chapter 10 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 10.4 - Prob. 1GRCh. 10.4 - Prob. 2GRCh. 10.7 - Prob. 1EGCh. 10.7 - Prob. 2EGCh. 10 - A couple was referred for genetic counseling...Ch. 10 - A couple was referred for genetic counseling...Ch. 10 - A couple was referred for genetic counseling...Ch. 10 - Many individuals with metabolic diseases are...Ch. 10 - Prob. 2QPCh. 10 - Enzymes have all the following characteristics...
Ch. 10 - Questions 4 through 6 refer to the following...Ch. 10 - Questions 4 through 6 refer to the following...Ch. 10 - Prob. 6QPCh. 10 - Prob. 7QPCh. 10 - Prob. 8QPCh. 10 - a. Compounds A, B, C, and D are known to be...Ch. 10 - b. Compounds A, B, C, and D are known to be...Ch. 10 - a. If an individual who is homozygous for the...Ch. 10 - Prob. 12QPCh. 10 - Suppose that in the formation of phenylalanine...Ch. 10 - If phenylalanine was not an essential amino acid,...Ch. 10 - Phenylketonuria and alkaptonuria are both...Ch. 10 - The normal enzyme required for converting sugars...Ch. 10 - Knowing that individuals who are homozygous for...Ch. 10 - Prob. 18QPCh. 10 - A person was found to have very low levels of...Ch. 10 - If an extra nucleotide is inserted in the first...Ch. 10 - Transcriptional regulators are proteins that bind...Ch. 10 - Prob. 22QPCh. 10 - Prob. 23QP
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