Table of Contents

The Polymorphism of DNA.- I. Introduction.- II. A Summary of the Principles of DNA X-Ray Diffraction.- III. Generalities of DNA Transitions.- IV. B-like Structures.- V. The A Form.- VI. C-like Structures.- VII. Polynucleotide Polymorphism.- VIII. New Conformations of AT-rich DNA.- IX. Biological Relevance.- References.- Regulation of Bacteriophage T4 Gene Expression.- I. Introduction.- II. The Genetic Map of Coliphage T4.- III. Resolution of the Early and Late Classes of T4- specific RNA.- IV. Resolution of the Quasi-late RNA.- V. Immediate-early and Delayed-early RNAs.- VI. Transcription of the Prereplicative Genes of Bacteriophage T4: The Read-through Mechanism.- VII. Delayed-early Promoters.- VIII. The Interrelationship between Translation and Elongation of Chains from Immediate-early Promoters.- IX. Requirements for True-late Transcription.- X. Transcription of the Quasi-late Genes.- XI. Turn-off of Early Gene Expression.- XII. T4-specific Modifications of DNA-dependent RNA Polymerase.- XIII. T4-specific Modification of the Host Translational Machinery.- XIV. Expression of the Endolysin Gene of Phage T4.- References.- Defective Bacteriophages: The Phage Taillike Particles.- I. Introduction.- II. Structure.- III. Production.- IV. Bactericidal Activity.- V. Evolution.- VI. Conclusions.- References.- The Genesis of Multicellular Organization and the Control of Gene Expression in Diotyostelium discoideum.- I. Introduction.- II. The Migrating Slug.- III. Cell Association as an Initiator of Gene Expression.- IV. c-AMP, c-AMPsites, and the Morphogenetic Field of D. discoideum.- References.- Isoprenoids and Bacteriorhodopsin in Halobacteria.- I. Introduction.- II. General Features of Halobacteria.- III. Biosynthesis of Isoprenoid Compounds.- IV. The Purple Membrane and Bacteriorhodopsin.- V. The Photochemical Cycle in Bacteriorhodopsin.- VI. Function of Bacteriorhodopsin in the Halobacterial Cell.- VII. Biosynthesis of Bacteriorhodopsin and the Purple Membrane.- References.- Inhibitors of DNA Synthesis in RNA Tumor Viruses: Biological Implications and Their Mode of Action.- I. Introduction.- II. Requirements for DNA Synthesis by RNA Tumor Viruses.- III. Inhibition of Oncogenesis by RNA Tumor Viruses.- IV. Conclusion and Future Prospects.- References.- Adenosine as a Physiological Regulator of Coronary Blood Flow.- I. Introduction.- II. Control of Adenosine Production in Mammalian Heart.- III. Regulation of the Size of Cardiac Adenosine Pool.- IV. Adenosine Relaxation of Coronary Smooth Muscle.- V. Summary.- References.