Proteins are dynamic macromolecules that perform a wide variety of cellular functions. This page describes some of the functions of proteins, together with their structure, including the composition o...Proteins are dynamic macromolecules that perform a wide variety of cellular functions. This page describes some of the functions of proteins, together with their structure, including the composition of the amino acid, the formation of the peptide bond, and the four levels of protein structure.
Amino acids are the building blocks for proteins. There are 20 different amino acids commonly found in proteins. All amino acids contain an amino group and a carboxyl (acid) group. To form polypeptide...Amino acids are the building blocks for proteins. There are 20 different amino acids commonly found in proteins. All amino acids contain an amino group and a carboxyl (acid) group. To form polypeptides and proteins, amino acids are joined together by peptide bonds, in which the amino of one amino acid bonds to the carboxyl (acid) group of another amino acid. A peptide is two or more amino acids joined together by peptide bonds. Proteins are long chains of amino acids held by peptide bonds.
