Chapter 26, Problem 26.60EP

Interpretation Introduction

Interpretation: To identify the two nonstandard amino acids that participates in the urea cycle.

Concept introduction: Amino acids are the main building blocks of proteins. Amino acids that participate in peptide bond synthesis in proteins are known as standard amino acids. Amino acids that do not participate in peptide bond synthesis and not found in protein are known as nonstandard amino acids.

Nonstandard amino acids are produced by modifying the standard amino acids available.