What Is the Function of a Thioester Intermediate Such as the One

question 20

Multiple Choice

What is the function of a thioester intermediate such as the one formed from GAP?

• A) It speeds up the actual reaction so that more product can be made.
• B) The thioester shifts the equilibrium of the first stage of the reaction.
• C) The thioester allows the two-step reaction to be coupled so the second reaction, the energetically unfavorable phosphorylation, can proceed.
• D) The thioester intermediate induces a conformational change that alters the enzyme specificity.
• E) The thioester prevents the formation of metabolically unfavorable side products.

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