1. Overview of Cellular Inorganic Metabolism and the Need for Gene Regulation.- I: Bacterial Metal Metabolism.- 2. Control of Bacterial Iron Transport by Regulatory Proteins.- 3. Metal Cation Regulation in Gram-Positive Bacteria.- 4. Two-Component Systems in the Regulation of Heavy Metal Resistance.- 5. Phosphate Signaling and the Control of Gene Expression in Escherichia coli.- II: Animal Metal Metabolism.- 6. Translational Regulation of Bioiron.- 7. The Iron Responsive Element (IRE), the Iron Regulatory Protein (IRP), and Cytosolic Aconitase: Posttranscriptional Regulation of Mammalian Iron Metabolism.- 8. Mechanisms for Induction and Rerepression of Ferritin Synthesis.- 9. Metallothionein Gene Regulation in Mouse Cells.- 10. Menkes’ and Wilson’s Diseases: Genetic Disorders of Copper Transport.- III: Lower Eukaryotes and Plants.- 11. Metal Ion Stress in Yeast.- 12. Yeast Metallothionein Gene Regulation.- 13. The Molecular Biology of Iron and Zinc Uptake in Saccharomyces cerevisiae.- 14. Metallothionein Gene Regulation in Cyanobacteria.- 15. Metallothionein-like Genes and Phytochelatins in Higher Plants.- 16. Regulation of Ferritin Synthesis and Degradation in Plants.- 17. Reciprocal, Copper-Responsive Accumulation of Plastocyanin and Cytochrome c6 in Algae and Cyanobacteria: A Model for Metalloregulation of Metalloprotein Synthesis.