This second edition volume expands on the previous edition with new discussions on the latest techniques used to study molecular chaperones and the stress response. The chapters in this book cover such as analysis of the initiation and regulation of the stress response; the role of heat shock protein 90 (Hsp90) in gene expression through chromosome-immunoprecipitation; features of chaperone function and biology; the emerging role of the extracellular HSPs; and the use of chaperones as biomarkers. Written in the highly 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 laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and thorough, Chaperones: Methods and Protocols, Second Edition is a valuable resource for all researchers who want to learn more about this interesting and developing field.