Considering the general structure of penicillins, how are they rendered ineffective? Select one: a. β-Lactamase performs nucleophilic attack of the amide in the penicillin side chain b. β-Lactamase performs nucleophilic attack of the amide in the β-lactam ring and subsequently hydrolyzes this intermediate c. β-Lactamase performs nucleophilic attack of the thiazolidone ring on the carbon next to the electronegative sulfur leading to a covalently inhibited β-Lactamase d. All of these e. None of these
Considering the general structure of penicillins, how are they rendered ineffective? Select one: a. β-Lactamase performs nucleophilic attack of the amide in the penicillin side chain b. β-Lactamase performs nucleophilic attack of the amide in the β-lactam ring and subsequently hydrolyzes this intermediate c. β-Lactamase performs nucleophilic attack of the thiazolidone ring on the carbon next to the electronegative sulfur leading to a covalently inhibited β-Lactamase d. All of these e. None of these
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Considering the general structure of penicillins, how are they rendered ineffective?
Select one:
a.
β-Lactamase performs nucleophilic attack of the amide in the penicillin side chain
b.
β-Lactamase performs nucleophilic attack of the amide in the β-lactam ring and subsequently hydrolyzes this intermediate
c.
β-Lactamase performs nucleophilic attack of the thiazolidone ring on the carbon next to the electronegative sulfur leading to a covalently inhibited β-Lactamase
d.
All of these
e.
None of these
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