Question

Draw the tetrapeptide Ala-Thr-Asp-Asn and indicate the peptide bonds.

Short answer

Peptide bonds and disulfide bonds are the only covalent bonds that join amino acids together in a peptide or a protein. A tetrapeptide is a peptide that consists of four amino acids that are joined by peptide bonds.

Step-by-step solution

Step-by-step-solutionStep 1: Tetrapeptide

Peptide bonds and disulfide bonds are the only covalent bonds that join amino acids together in a peptide or a protein. A tetrapeptide is a peptide that consists of four amino acids that are joined by peptide bonds.

Formation of given tetrapeptide

The given tetrapeptide is formed by the following amino acid, i.e., Alanine, threonine, aspartic acid, and asparagine. These peptides and proteins are written with the free amino group (of the N-terminal amino acid) on the left and the free carboxyl group (of the C-terminalamino acid) on the right.

The given tetrapeptide is formed as follows:

Formation of tetrapeptide