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What factors affect protein structure and function?

Many factors affect the process of protein folding, including conformational and compositional stability, cellular environment including temperature and pH, primary and secondary structure, solvation, hydrogen bonding, salt bridges, hydrophobic effects, van der Waals (vdW) forces, ligand binding, cofactor binding, ion …

What determines the functional properties of a protein?

The functionality of a protein in a food system must be a composite expression of its physicochemical properties. These in turn arise from the protein’s amino acid composition, amino acid sequence, secondary, tertiary and quaternary structure.

What originally determines the structure and function of proteins?

Protein structure depends on its amino acid sequence and local, low-energy chemical bonds between atoms in both the polypeptide backbone and in amino acid side chains. Protein structure plays a key role in its function; if a protein loses its shape at any structural level, it may no longer be functional.

What is the function of the quaternary structure of a protein?

Quaternary structure is an important protein attribute that is closely related to its function. Proteins with quaternary structure are called oligomeric proteins. Oligomeric proteins are involved in various biological processes, such as metabolism, signal transduction, and chromosome replication.

How do you describe the quaternary structure of a protein?

The quaternary structure of a protein is the association of several protein chains or subunits into a closely packed arrangement. Each of the subunits has its own primary, secondary, and tertiary structure. The subunits are held together by hydrogen bonds and van der Waals forces between nonpolar side chains.

Which of the following is characteristic of proteins?

Proteins are large, complex molecules that have a variety of functions in the body and are essential to good health. Like fats and carbohydrates, proteins are long polymer chains. They are made from amino acids and are used by organisms to build structures, facilitate chemical processes and give an animal locomotion.

What gives protein its unique properties?

Each protein has its own unique sequence of amino acids and the interactions between these amino acids create a specify shape. This shape determines the protein’s function, from digesting protein in the stomach to carrying oxygen in the blood.