Biochemistry

E-Book Overview

This book provides a comprehensive introduction to the principles of biochemistry, giving the reader a command of biochemistry's basic concepts of language.

E-Book Content

Dedication About the authors Preface Tools and Techniques Clinical Applications Molecular Evolution Supplements Supporting Biochemistry, Fifth Edition Acknowledgments I. The Molecular Design of Life 1. Prelude: Biochemistry and the Genomic Revolution 1.1. DNA Illustrates the Relation between Form and Function 1.2. Biochemical Unity Underlies Biological Diversity 1.3. Chemical Bonds in Biochemistry 1.4. Biochemistry and Human Biology Appendix: Depicting Molecular Structures 2. Biochemical Evolution 2.1. Key Organic Molecules Are Used by Living Systems 2.2. Evolution Requires Reproduction, Variation, and Selective Pressure 2.3. Energy Transformations Are Necessary to Sustain Living Systems 2.4. Cells Can Respond to Changes in Their Environments Summary Problems Selected Readings 3. Protein Structure and Function 3.1. Proteins Are Built from a Repertoire of 20 Amino Acids 3.2. Primary Structure: Amino Acids Are Linked by Peptide Bonds to Form Polypeptide Chains 3.3. Secondary Structure: Polypeptide Chains Can Fold Into Regular Structures Such as the Alpha Helix, the Beta Sheet, and Turns and Loops 3.4. Tertiary Structure: Water-Soluble Proteins Fold Into Compact Structures with Nonpolar Cores 3.5. Quaternary Structure: Polypeptide Chains Can Assemble Into Multisubunit Structures 3.6. The Amino Acid Sequence of a Protein Determines Its Three-Dimensional Structure Summary Appendix: Acid-Base Concepts Problems Selected Readings 4. Exploring Proteins 4.1. The Purification of Proteins Is an Essential First Step in Understanding Their Function 4.2. Amino Acid Sequences Can Be Determined by Automated Edman Degradation 4.3. Immunology Provides Important Techniques with Which to Investigate Proteins 4.4. Pep
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