KROK 1 Stomatology 2015 – Question 181 · KROK (Dentistry)
Calcification of dental tissues is significantly influenced by osteocalcin protein which has an ability to bind calcium ions due to the presence of the following modified amino acid residues in the polypeptide chain:
- A. γ-aminobutyric
- B. Alanine
- C. γ-carboxyglutamic
- D. Carboxyasparagine
- E. δ-aminopropionic
Hint
Think of the vitamin K–dependent post-translational modification that osteocalcin shares with several clotting factors.
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