KROK 1 Stomatology 2013 – Question 33 · KROK (Dentistry)
Cationic glycoproteins are the major components of parotid saliva. What amino acids are responsible for their positive charge?
- A. Glutamate, valine, leucine
- B. Lysine, arginine, histidine
- C. Cysteine, glycine, proline
- D. Aspartate, arginine, glutamate
- E. Aspartate, glutamate, glycine
Hint
Ask which amino acids carry side-chain groups that are protonated at physiological pH.
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