Leading scientists offer an unprecedented suite of master protocols for analyzing neuropeptide structure and function using optimized classic methods and the latest state-of-the-art techniques. This comprehensive collection includes valuable techniques for extracting and purifying neuropeptides from biological sources, for their sequence determination by Edman degradation and PCR, and for the solid-phase synthesis and purification of peptides and peptide analogs. Also covered are physical techniques for the characterization of synthetic or natural peptides, methods for immunocytochemical sample preparation and visualization at both light and electron levels, and techniques for neuropeptide-receptor interaction. Chapters on molecular modeling, radioisotopic labeling, production of antisera, the measurement of efflux from brain to blood, and the assay and inhibition of neuropeptidases complete this indispensable collection of readily reproducible protocols.