Part I: Introduction 1. Peptidomics: Divide et Impera Mikhail Soloviev Part II: From Bacteria to Men 2. Performing Comparative Peptidomics Analyses of Salmonella from Different Growth Conditions Joshua N. Adkins, Heather Mottaz, Thomas O. Metz, Charles Ansong, Nathan P. Manes, Richard D. Smith, and Fred Heffron 3. Approaches to Identify Endogenous Peptides in the Soil Nematode Caenorhabditis elegans Steven J. Husson, Elke Clynen, Kurt Boonen, Tom Janssen, Marleen Lindemans, Geert Baggerman, and Liliane Schoofs 4. Mass Spectrometric Analysis of Molluscan Neuropeptides Ka Wan Li and August B. Smit 5. Monitoring Neuropeptides in vivo via Microdialysis and Mass Spectrometry Heidi L. Behrens and Lingjun Li 6. Protocols for Peptidomic Analysis of Spider Venoms Liang Songping 7. Purification and Characterization of Biologically Active Peptides from Spider Venoms Alexander A. Vassilevski, Sergey A. Kozlov, Tsezi A. Egorov, and Eugene V. Grishin 8. MALDI-TOF Mass Spectrometry Approaches to the Characterization of Insect Neuropeptides Robert J. Weaver and Neil Audsley 9. Direct MALDI-TOF Mass Spectrometric Peptide Profiling of Neuroendocrine Tissue of Drosophila Christian Wegener, Susanne Neupert, and Reinhard Predel 10. Direct Peptide Profiling of Brain Tissue by MALDI-TOF Mass Spectrometry Joachim Schachtner, Christian Wegener, Susanne Neupert, and Reinhard Predel 11. Peptidomic Analysis of Single Identified Neurons Susanne Neupert and Reinhard Predel 12. Identification and Analysis of Bioactive Peptides in Amphibian Skin Secretions J. Michael Conlon and Jerome Leprince 13. An Efficient Protocol for DNA Amplification of Multiple Amphibian Skin Antimicrobial PeptidecDNAs Shawichi Iwamuro and Tetsuya Kobayashi 14. Combined Peptidomics and Genomics Approach to the Isolation of Amphibian Antimicrobial Peptides Ren Lai 15. Identification and Relative Quantification of Neuropeptides from the Endocrine Tissues Kurt Boonen, Steven J. Husson, Bart Landuyt, Geert Baggerman, Eisuke Hayakawa, Walter H.M.L. Luyten, and Liliane Schoofs 16. Peptidome Analysis of Mouse Liver Tissue by Size Exclusion Chromatography Prefractionation Lianghai Hu, Mingliang Ye, and Hanfa Zou 17. Rat Brain Neuropeptidomics: Tissue Collection, Protease Inhibition, Neuropeptide Extraction, and Mass Spectrometric Analysis Robert M. Sturm, James A. Dowell, and Lingjun Li 18. Quantitative Neuroproteomics of the Synapse Dinah Lee Ramos-Ortolaza, Ittai Bushlin, Noura Abul-Husn, Suresh P. Annagudi, Jonathan Sweedler, and Lakshmi A. Devi 19. Peptidomics Analysis of Lymphoblastoid Cell Lines Anne Fogli and Philippe Bulet 20. Peptidomics: Identification of Pathogenic and Marker Peptides Yang Xiang, Manae S. Kurokawa, Mie Kanke, Yukiko Takakuwa, and Tomohiro Kato Part III: Tools and Approaches 21. Peptidomic Approaches to the Identification and Characterization of Functional Peptides in Hydra Toshio Takahashi and Toshitaka Fujisawa 22. Immunochemical Methods for the Peptidomic Analysis of Tachykinin Peptides and their Precursors Nigel M. Page and Nicola J. Weston-Bell 23. Affinity Peptidomics: Peptide Selection and Affinity Capture on Hydrogels and Microarrays Fan Zhang, Anna Dulneva, Julian Bailes, and Mikhail Soloviev 24. In situ Biosynthesis of Peptide Arrays Mingyue He and Oda Stoevesandt 25. Bioinformatic Approaches to the Identification of Novel Neuropeptide Precursors Elke Clynen, Feng