Question

Disulfide bonds are often found to stabilize which of the following levels of protein structure?

A. Primary structure
B. Secondary structure
C. Tertiary structure
D. Quaternary structure

Answer 1

Disulfide bonds play a critical role in stabilizing the tertiary structure of proteins by forming strong covalent links between sulfur atoms.

Step-by-step explanation:

Disulfide bonds are often found to stabilize the tertiary structure of proteins. These covalent bonds form between sulfur atoms in the side chains of cysteine amino acids when they are brought close together as the protein folds. This covalent bonding acts to further stabilize the protein's three-dimensional shape, alongside other interactions such as hydrogen bonding, ionic bonding, and dispersion forces.