KROK 1 2007 – Question 142 · KROK (Medicine) · Biological Chemistry
A patient diagnosed with carcinoid of bowels was admitted to the hospital. Analysis revealed high production of serotonin. It is known that this substance is formed of tryptophane aminoacid. What biochemical mechanism underlies this process?
- A. Transamination
- B. Formation of paired compounds
- C. Desamination
- D. Microsomal oxydation
- E. Decarboxylation
Hint
Compare the structures of tryptophan and serotonin and ask which part of the amino-acid backbone is missing in the amine, and what kind of reaction removes it.
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