The cause of the difference between the predicted and the observed masses of a fragment of the peptide from a protein should be determined. Also, the origin of this fragment should be determined. Concept introduction: A peptide bond is present between the two amino acids in a protein. During the formation of a peptide bond, a molecule of water is released. The amino group of an amino acid gets associated with the carboxyl group of another. Polypeptides and proteins are the chains formed by the amino acids.

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Chapter 3, Problem 23P

Interpretation Introduction

Interpretation:

The cause of the difference between the predicted and the observed masses of a fragment of the peptide from a protein should be determined. Also, the origin of this fragment should be determined.

Concept introduction:

A peptide bond is present between the two amino acids in a protein. During the formation of a peptide bond, a molecule of water is released. The amino group of an amino acid gets associated with the carboxyl group of another. Polypeptides and proteins are the chains formed by the amino acids.

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