On, boiling egg, egg white coaggulates. This is an example of protein

Denaturation is a process by which the native form of protein structure is disorganized. This causes drastic changes in a protein molecule. Denaturation is caused by some physical and chemical agents. Denaturation causes loss in biological activity of protein. The peptide bonds in the primary structure are not hydrolyzed, but helical structure of the protein is lost. Protein is soluble in water but after denaturation it is insoluble and easily digested.Denaturation is usually a irreversible process, but it is sometimes reversible. The coagulation of egg white on boiling of egg protein is an example of irreversible protein denaturation.