What is the Enzyme-Bound Intermediate in the Conversion of Citrate

Question

What is the enzyme-bound intermediate in the conversion of citrate and isocitrate?
A) oxalosuccinate
B) dihydrocitrate
C) cis-aconitate
D) hydroxyethyl-TPP
E) fumarate

Accepted Answer

Cis-aconitate is the enzyme-bound intermediate formed during the conversion of citrate to isocitrate in the citric acid cycle. This conversion is catalyzed by the enzyme aconitase.