What are Proteins?

Proteins are polymers of amino acids linked together by peptide bonds. Proteins and polypeptides are interchangeably used to refer to long chains of amino acids. However, polypeptides have a molecular weight of fewer than 10,000 daltons, while proteins have greater molecular weight. Polypeptides with less than 20 amino acids are called oligopept...

A protein is a chain of amino acids, compounds that contain amine and carboxyl groups, along with different side chains denoted as R, attached to a core carbon.

Amino acids are linked through covalent peptide bonds, and the repeating series of atoms along the core is called the polypeptide backbone.

The sequence begins at the N-ter...