Fundamentals of Biochemistry: Life at the Molecular Level
Fundamentals of Biochemistry: Life at the Molecular Level
5th Edition
ISBN: 9781118918401
Author: Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher: WILEY
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Chapter 4, Problem 1E
Summary Introduction

To determine: The amino acids that differ from each other by a single methyl or methylene group.

Concept introduction: The amino acids vary from each other due to the presence of different R groups. The amino acid properties depend on the R group. They often combine to form long chains of polypeptide, ultimately forming complex proteins.

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Amino acid is a basic structural unit of a protein. It forms a peptide bond by joining two or more amino acids. Amino acid consists of an asymmetrical carbon atom that is attached with an amino group, a hydrogen atom, a carboxylic group, and a side group (or R-group).

There are 20 standard amino acids. Proteins are made from these standard amino acids. The amino acids that differ from each other by a single methyl group or methylene group are glycine and alanine, serine and threonine, valine, leucine and isoleucine, asparagine and glutamine, aspartate, and glutamate.

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Fundamentals of Biochemistry: Life at the Molecular Level

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