KROK 1 2008 – Question 94 · KROK (Medicine) · Biological Chemistry
As a result of posttranslative modifications some proteins taking part in blood coagulation, particularly prothrombin, become capable of calcium binding. The following vitamin takes part in this process:
- A. A
- B. B1
- C. C
- D. K
- E. B2
Hint
Consider which fat-soluble vitamin serves as the cofactor of the carboxylase that converts glutamate residues of clotting factors into residues able to bind calcium ions.
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