Front Cover

pp.：  1 – 4

Progress in Nucleic Acid Research and Molecular Biology, Volume 21

pp.：  4 – 5

Copyright Page

pp.：  5 – 6

Contents

pp.：  6 – 10

List of Contributors

pp.：  10 – 12

Abbreviations and Symbols

pp.：  12 – 16

Some Articles Planned for Future Volumes

pp.：  16 – 18

Chapter 1. Informosomes and Their Protein Components: The Present State of Knowledge

pp.：  18 – 56

Chapter 2. Energetics of the Ribosome

pp.：  56 – 80

Chapter 3. Mechanisms in Polypeptide Chain Elongation on Ribosomes

pp.：  80 – 118

Chapter 4. Synthetic Oligodeoxynucleotides for Analyses of DNA Structure and Function

pp.：  118 – 160

Chapter 5. The Transfer RNAs of Eukaryotic Organelles

pp.：  160 – 198

Chapter 6. Regulation of the Biosynthesis of Aminoacid:tRNA Ligases and of tRNA

pp.：  198 – 226

Subject Index

pp.：  226 – 229

Contents of Previous Volumes

pp.：  229 – 236