Neuropeptide Y (NPY) is a 36-amino-acid residue peptide with sequence and 3-D structural homology with PYY and pancreatic polypeptide (PP). NPY serves as a neurotransmitter and is e, Xenopus/Amphibian,clusively localized in neurons in the central and peripheral nervous system. NPY is associated with the regulation of heart rate and food intake in several mammalian species. This antibody binds to an epitope in the midregion (18-24) of full length human,Mouse,ouse and rat NPY. Cross-reactivity with NPY (1-24) , NPY (18-36),PorcineYY or PP was almost ine, Xenopus/Amphibian,istant (<0.2%).