Well, this bond is actually a special type of covalent bond known as a peptide bond or an AmiB. So let's begin by taking a look at the following reaction that basically describes the reaction that forms this peptide bond. So let's suppose we're on the reactant side, and on the reactant side, we have amino acid A and amino acid B. Now, amino acid A contains a side chain group given by R one, and this one contains a different side chain group given by R two. And any one of these amino acids can be any one of the 20 amino acids found inside our body. For example, this can be Glycine and this can be Lysine and so forth.