The enzyme enolase has a permanently bound Mg2+ ion in its active site. To the below is a schematic of the enzyme active site bound to an intermediate of the reaction. Which of the following are true? (Pick two.) PO32- Н Mg2 C C H HO Favorable electrostatic interactions (dashed blue lines) between Mg2+ and the intermediate increase (make it more positive) the AG of the reaction. Favorable electrostatic interactions (dashed blue lines) between Mg2+ and the intermediate decrease (make it more negative) the AG of the reaction. Favorable electrostatic interactions between Mg2+ and the intermediate decrease the rate constant, k, of the reaction, decreasing the rate of the reaction. Favorable electrostatic interactions between Mg2+ and the intermediate increase the rate constant, k, of the reaction, increasing the rate of the reaction.

Biochemistry
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ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
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Chapter1: Biochemistry: An Evolving Science
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The enzyme enolase has a permanently bound Mg2+ ion in its active site. To the below is a
schematic of the enzyme active site bound to an intermediate of the reaction. Which of the
following are true? (Pick two.)
PO32-
Н
Mg2
C C H
HO
Favorable electrostatic interactions (dashed blue lines) between Mg2+ and the intermediate increase
(make it more positive) the AG of the reaction.
Favorable electrostatic interactions (dashed blue lines) between Mg2+ and the intermediate decrease
(make it more negative) the AG of the reaction.
Favorable electrostatic interactions between Mg2+ and the intermediate decrease the rate constant, k,
of the reaction, decreasing the rate of the reaction.
Favorable electrostatic interactions between Mg2+ and the intermediate increase the rate constant, k,
of the reaction, increasing the rate of the reaction.
Transcribed Image Text:The enzyme enolase has a permanently bound Mg2+ ion in its active site. To the below is a schematic of the enzyme active site bound to an intermediate of the reaction. Which of the following are true? (Pick two.) PO32- Н Mg2 C C H HO Favorable electrostatic interactions (dashed blue lines) between Mg2+ and the intermediate increase (make it more positive) the AG of the reaction. Favorable electrostatic interactions (dashed blue lines) between Mg2+ and the intermediate decrease (make it more negative) the AG of the reaction. Favorable electrostatic interactions between Mg2+ and the intermediate decrease the rate constant, k, of the reaction, decreasing the rate of the reaction. Favorable electrostatic interactions between Mg2+ and the intermediate increase the rate constant, k, of the reaction, increasing the rate of the reaction.
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