Chapter 18.4, Problem 44PP

(a)

Interpretation Introduction

Interpretation:The structure of the peptide $\text{Asp}-\text{Cys}-\text{Gly}-\text{Tyr}$ needs to be determined with the one-letter abbreviations.

Concept Introduction: Peptides are polymers of amino acids which are organic molecule with −NH2 and −COOH groups bonded on same C-atom. Each amino acid is bonded wither other through peptide bond. The peptide bond is formed by condensation reaction of −NH2 and −COOH groups that leads to the formation of an amide linkage.

(b)

Interpretation Introduction

Interpretation: The structure of the peptide $\text{Asn}-\text{Tyr}-\text{Asp}-\text{Glu-Tyr}$ needs to be determined with the one-letter abbreviations.

Concept Introduction: Peptides are polymers of amino acids which are organic molecule with −NH2 and −COOH groups bonded on same C-atom. Each amino acid is bonded wither other through peptide bond. The peptide bond is formed by condensation reaction of −NH2 and −COOH groups that leads to the formation of an amide linkage.