Within cells, regulation of protein degradation, or proteolysis, is critical to dynamic control of protein levels. Cellular Proteolytic Systems is the first book to provide a detailed and comprehensive summary of advances in the biochemistry, cellular biology, molecular genetics, and physiology of the major proteolytic processes. The field of cellular proteolysis is advancing rapidly and has great potential impact in a variety of research and clinical areas, including AIDS and cancer research and treatment. The editors, pioneers in the field of cellular and protein research, describe our current understanding of the three major cellular proteolytic systems: the ubiquitin system, the lysosomal and vacuolar systems, and physiological and pathophysiological cellular proteolysis. Individual chapters cover topics from the molecular genetics of the ubiquitin system to regulation of autophagy to antigen processing and presentation. Cellular Proteolytic Systems will provide an excellent foundation in the biological basis of protein turnover for cellular, developmental, and molecular biologists.