This volume explores the latest advancements in the field of cell cycle checkpoints and their implications for human diseases. Chapters in this book cover topics such as post-translationally modified p53 by western blotting; CHK1 cellular localization by immunofluorescence microscopy; DNA affinity purification; knockdown of target genes by siRNA in vitro; and calreticulin exposure in mitotic catastrophe. 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, Cell Cycle Checkpoints: Methods and Protocols is a valuable resource for researcher interested in learning more about this developing field.