Question

Which of the following transfers acyl group from co-A to cys residue of KS?

(a) Acyl carrier protein

(b) Acetyl co-A ACP transacetylase

(c) Enoyl-ACP reductase

(d) Malonyl co-A ACP transferase

I have been asked this question in an interview for internship.

My enquiry is from Biosynthesis of Fatty Acids and Eicosanoids topic in section Lipid Biosynthesis, Biosynthesis of Amino Acids, Nucleotides and Related Molecules of Biochemistry

Answer 1

The correct choice is (b) Acetyl co-A ACP transacetylase

Explanation: β-ketoacyl ACP synthase condenses acyl and malonyl groups.

Malonyl co-A ACP transferase transfers malonyl group from co-A to ACP.

Acyl carrier protein carries acyl groups in thio-ester linkage.