Peptide Sequence Structure

This lecture aims to teach the language of biologists to engineering students, focusing on writing peptide sequences correctly. The instructor explains the stereochemistry of amino acids, the chiral center, and the convention of representing peptide structures. By using a simple zigzag line method, students learn to fill in the amino acids' side groups, respecting stereochemistry to avoid mistakes. The lecture includes a practical exercise of writing down the peptide sequence EPFL, composed of glutamic acid, proline, phenylalanine, and lysine.