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Question:What is the role of ATP-citrate lyase in fatty acid synthesis?

Short Answer

Expert verified

ATP-citrate lyase is an enzyme used for the conversion of citrate in the cytosol to acetyl-CoA and oxaloacetate.

Citrate+CoA+ATP→ATP-citratelyaseAcetyl-CoA+Oxaloacetate+ADP+Pi

Acetyl-CoA can be used for fatty acid biosynthesis.

Step by step solution

01

ATP-citrate lyase

Also known as ATP-citrate synthase is an essential enzyme helpful in fatty acid biosynthesis.

02

Functions of ATP-citrate lyase in the fatty acid synthesis

The enzyme is responsible for the conversion of citrate to acetyl-CoA and oxaloacetate. Citrate lyase will catalyze the conversion of citrate and coenzyme A in the cytosol to yield acetyl-CoA and oxaloacetate, driven by hydrolysis of ATP to ADP.The reaction is as follows: Citrate+CoA+ATP→ATP-citratelyaseAcetyl-CoA+Oxaloacetate+ADP+Pi

The product acetyl-CoA is then used in the synthesis of the fatty acids in the cytosol.

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