Exam 23: Protein Turnover and Amino Acid Catabolism

Which of the following is an allosteric activator of mammalian carbamoyl phosphate synthetase?

The genetic deficiency of the enzyme __________________________ results in a condition referred to as maple syrup urine disease.

What is the fate of sulfur in the metabolism of cysteine?

What enzyme catalyzes an oxidative deamination using either NAD⁺ or NADP⁺?

The half-life of a cytosolic protein is primarily determined by the

Ammoniotelic organisms excrete excess nitrogen as

Explain the cause of PKU,and give the structure of the abnormal metabolite that accumulates from which this condition gets its name.

Which amino acids can be converted to pyruvate by a single enzyme-catalyzed reaction?

In the urea cycle,the carbon skeleton of aspartate is preserved as