Gene expression can mean the difference between a functional and non-functional genome, between health and disease, and with the development of transgenic crops, the difference between survival and starvation. In DNA-Protein Interactions: Principles and Protocols, Third Edition, this vital subject is brought up to date with protocols exploring the most cutting-edge developments in the field, including in vivo and genome-wide interaction techniques. Addressing topics such as chromatin immunoprecipitation, topological studies, photocrosslinking, FRET and imaging techniques, the volume fully updates and expands upon the successful previous editions.