KROK 1 Stomatology 2014 – 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:

  1. A. Gamma-aminobutyric acid
  2. B. Carboxyasparagine
  3. C. Delta-aminopropionic acid
  4. D. Gamma-carboxyglutamic acid
  5. E. Alanine
Hint

Recall which vitamin osteocalcin needs to become active and which amino acid residues that vitamin modifies.

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