Answer to Question #168016 in Biochemistry for Yashika Sharma

Question

What is the difference between an enol phosphate ester and a normal phosphate ester that gives PEP such a high phosphoryl group transfer potential? ( 3 marks)

Answer 1

PEP has high phosphoryl transfer because the phosphoryl group traps PEP into its unstable enol form. Once the phosphate group is transferred to ATP, the enol converts to a more stable ketone.