Essential Biochemistry - Chemistry Of Proteins (Section 4 - No. 14)

Which of the following statements is true regarding the role of proline in protein structure?

Proline disrupts alpha-helices.

Proline stabilizes beta-sheets.

Proline is a polar amino acid.

Proline is a basic amino acid.

Proline's unique cyclic structure introduces a kink in the polypeptide chain and disrupts the formation of alpha-helices.