What is the primary function of the enzyme branched-chain alpha-keto acid dehydrogenase in protein metabolism?

A To catalyze the degradation of branched-chain amino acids ✓
B To synthesize branched-chain amino acids
C To regulate the uptake of branched-chain amino acids by cells
D To inhibit the activity of other enzymes involved in protein metabolism

Explanation

The enzyme branched-chain alpha-keto acid dehydrogenase plays a crucial role in the degradation of branched-chain amino acids, which are essential for various cellular processes.

Mnemonic

BCKD = Branched-Chain Killer Dude, breaks down amino acids

Source

Lehninger Principles of Biochemistry
Protein Metabolism Biochemistry Amino Acid Metabolism Hard MEDICAL Confidence: high