Neuropeptide Y Receptor, Type 4, Control Peptide (NPY 4R)
Description
Neuropeptide Y (NPY), a neuropeptide colocalized and abundantly released with the neurotransmitter norepinephrine in nervous system, synthesized by postnatal olfactory epithelium of sustentacular cells. It promotes the proliferation of postnatal neuronal precursor cells and exhibits a diverse range of important physiologic activities, including effects on psychomotor activity, food intake, regulation of central endocrine secretion, and potent vasoactive effects on the cardiovascular system. NPY a 97aa peptide in mouse, human (chr 7p15.1) and 98aa in rat has a mol. wt of 11kD. NPY shows sequence homology to Peptide YY (PYY) and over 50% homology in amino acid and nucleotide sequence to Pancreatic Polypeptide (PNP or PPY), all of these homologous peptides has a 36aa mature peptide characterized by a hairpin loop. NPY4R/ PPYR1, a 375aa protein in mouse and human (Chr 10q11.2) is a receptor for NPY and PYY with high affinity to PPY. Highest levels of expression are found in Brain, Coronary