Question Detail
Question
Consider the following statements: The tertiary structure of proteins is stabilized by 1. disulphide linkage 2. hydrogen bonding 3. electrostatic bonds between positively and negatively charged groups Which of the statements given above are correct?
Correct Answer
Option D is the correct answer.
Detailed Explanation
All three statements are correct. The tertiary structure of proteins (the three-dimensional folding of a single polypeptide chain) is stabilized by various interactions: disulfide linkages (covalent bonds between cysteine residues), hydrogen bonding (between polar side chains or backbone elements), and electrostatic bonds (ionic interactions between positively and negatively charged amino acid side chains), as well as hydrophobic interactions and van der Waals forces.
Hint
Consider all the types of bonds and interactions that contribute to the overall folding of a protein.