KROK 1 2010 – Question 109 · KROK (Medicine) · Biological Chemistry
During hypersensitivity test a patient got subcutaneous injection of an antigen which caused reddening of skin, edema, pain as a result of histamine action. This biogenic amine is generated as a result of transformation of the following histidine amino acid:
- A. Deaminization
- B. Decarboxylation
- C. Isomerization
- D. Methylation
- E. Phosphorylation
Hint
Recall the general type of reaction by which an amino acid is turned into the corresponding biogenic amine in tissues, as also happens with serotonin and dopamine.
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