1. Suppose an enzyme only shows activity when the side chain -COOH group of a glutamic acid in the active site is protonated. It is known that the pKa of the side chain -COOH group is 4.07. a) Is the enzyme more active at pH 2.4 or 5.7? Explain. b) What percentage of the enzymes is active at pH = 6.5? Explain. c) At what pH will the enzyme show 78% of maximal activity?
1. Suppose an enzyme only shows activity when the side chain -COOH group of a glutamic acid in the active site is protonated. It is known that the pKa of the side chain -COOH group is 4.07. a) Is the enzyme more active at pH 2.4 or 5.7? Explain. b) What percentage of the enzymes is active at pH = 6.5? Explain. c) At what pH will the enzyme show 78% of maximal activity?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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