Essay: The structure and function of Protein Proteins are large compounds built up of sub-units called amino acids. There are 20 different amino acids; there are thousands of proteins that shape is determined by the specific sequence of amino acids in the chain.
The loss of a secondary, tertiary or quaternary structure due to exposure to stress is called denaturation. Denaturation results in the unfolding of the protein into a random or misfolded shape. A denatured protein can have quite a different activity profile than the protein in its native form, and it usually loses its biological function. In.