Disulfide bonds form between which atoms, and what is their role in protein structure?

Disulfide bonds form between which atoms, and what is their role in protein structure?

• A. Between oxygen atoms in water; aid solubility.
• B. Between sulfur atoms of cysteine residues; stabilize tertiary and quaternary structure.
• C. Between nitrogen atoms in amino groups; destabilize structure.
• D. Between carbon atoms in carbonyl groups; store energy.

Answer: (B)