Book excerpt: Proteins are the most diverse group of biologically important substances. With the recent technological advances in the genomics area and the efforts in proteomics research, the rate of discovery for new proteins with unknown structure and function has increased. These proteins generated from genomic approaches present enormous opportunities for research and industrial application. Protein Downstream Processing: Design, Development and Application of High and Low-Resolution Methods is a compilation of chapters within the exciting area of protein purification designed to give the laboratory worker the information needed to design and implement a successful purification strategy. It presents reliable and robust protocols in a concise form, emphasizing the critical aspects on practical problems and questions encountered at the lab bench. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Protein Downstream Processing: Design, Development and Application of High and Low-Resolution Methods will be an ideal source of scientific information to advanced students, junior researchers, and scientists involved in health sciences, cellular and molecular biology, biochemistry, and biotechnology and other related areas in both academia and industry. ​