Answer;
-When a protein is denatured, the primary structure remains intact, that is the peptide bonds joining amino acids are not broken by denaturing agents.
Explanation;
-The function of a protein is absolutely dependent on its three-dimensional structure. A number of agents can disrupt this structure thus denaturing the protein.
-These agents include; changes in pH, changes in salt concentration,l which alters electrostatic interactions between charged amino acids, changes in temperature (higher temperatures reduce the strength of hydrogen bonds) and finally the presence of reducing agents which break S-S bonds between cysteines.
None of these denaturing agents breaks peptide bonds, so the primary structure of a protein remains intact when it is denatured.
