KROK 1 Stomatology 2014 – Question 124 · KROK (Dentistry)
Vitamin-like substance choline is contained in phospholipids which are the main components of biological membranes. What sulphur-containing amino acid serves as the donor of methyl groups for the synthesis of choline?
- A. Serine
- B. Threonine
- C. Glycine
- D. Methionine
- E. Alanine
Hint
Recall which amino acid is activated by ATP to form the universal methyl donor used in methylation reactions, and check which option contains sulphur.
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