Which of the following statements regarding the catalytic mechanism of superoxide dismutase is true? The D residue does not participate in acid-base catalysis during the course of the catalyzed reaction All of the answers are true The coordinated Zn²+ participates in stabilizing Cu²+ in the reduction-oxidation reactions to consume O₂ The Cu²+ coenzyme is coordinated by H residues, positioning it precisely for consumption of 0₂ The overall reaction consumes two equivalents of O₂ and two proton equivalents in order to produces one equivalent H₂O2

Biochemistry
6th Edition
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Reginald H. Garrett, Charles M. Grisham
Chapter20: Electron Transport And Oxidative Phosphorylation
Section: Chapter Questions
Problem 11P
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Which of the following statements regarding the catalytic mechanism of superoxide dismutase is
true?
The D residue does not participate in acid-base catalysis during the course of the catalyzed
reaction
All of the answers are true
The coordinated Zn2+ participates in stabilizing Cu²+ in the reduction-oxidation reactions to
consume O₂
The Cu²+ coenzyme is coordinated by H residues, positioning it precisely for consumption of
0₂
The overall reaction consumes two equivalents of O₂ and two proton equivalents in order to
produces one equivalent H₂O2
Transcribed Image Text:Which of the following statements regarding the catalytic mechanism of superoxide dismutase is true? The D residue does not participate in acid-base catalysis during the course of the catalyzed reaction All of the answers are true The coordinated Zn2+ participates in stabilizing Cu²+ in the reduction-oxidation reactions to consume O₂ The Cu²+ coenzyme is coordinated by H residues, positioning it precisely for consumption of 0₂ The overall reaction consumes two equivalents of O₂ and two proton equivalents in order to produces one equivalent H₂O2
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