(Section Headings): Developing Purification Procedures. General Methods for Handling Proteins and Enzymes. Optimization of Starting Materials. Preparation of Extracts and Subcellular Fractionation. Solubilization Procedures. Purification Procedures: Bulk Methods. Purification Procedures: Chromatographic Methods. Purification Procedures: Electrophoretic Methods. Specialized Purification Procedures. Characterization of Purified Proteins. Immunological Procedures. Additional Techniques. Concluding Remarks. Appendix: Personal Perspectives on Enzyme Purification. Author Index. Subject Index.