The majority of all proteins undergo co- and/or post-translational modifications, crucially altering physical and chemical properties, folding, conformation distribution, stability, activity, and, consequently, the function of the proteins.  In Post-Translational Modifications of Proteins: Tools for Functional Proteomics, Third Edition this important area of research is brought up-to-date by the leading scientists in the field. This compilation of detailed protocols focuses on protein function, proteome research and characterization of pharmaceutical proteins, while following the successful format of the Methods in Molecular Biology series. Each chapter provides a brief introduction to the topic, step-by-step laboratory protocols, lists of the necessary equipment and reagents, and tips on troubleshooting and avoiding known pitfalls.