The functions of neuropeptide B mirror the functions of the closely related neuropeptide W in many respects, as they bind to the same receptor targets but differ mainly in their levels of expression in different tissues, and when and how they are released. However, while neuropeptide W binds to both NPBW1 and NPBW2 with similar affinity, neuropeptide B is relatively selective for NPBW1 and binds only weakly to NPBW2. Central actions of neuropeptide B include regulation of appetite and energy homeostasis, reproductive behavior, pain, anxiety, and emotions. Peripheral actions include regulating secretion of adrenal hormones, and various regulatory roles in pancreatic beta cells and adipose tissue.
↑Hondo M, Ishii M, Sakurai T (2008). "The NPB/NPW Neuropeptide System and Its Role in Regulating Energy Homeostasis, Pain, and Emotion". Orphan G Protein-Coupled Receptors and Novel Neuropeptides. Results and Problems in Cell Differentiation. Vol.46. pp.239–256. doi:10.1007/400_2007_056. ISBN978-3-540-78350-3. PMID18204824.
↑Watanabe Y, Iwata K, Minabe S, Nakao N, Ishii H, Ozawa H (October 2023). "Central injection of neuropeptide B induces luteinizing hormone release in male and female rats". Peptides. 168 171064. doi:10.1016/j.peptides.2023.171064. PMID37507090.