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Inactivation of a novel neuropeptide Y/peptide YY receptor gene in primate species. 1996

M Matsumoto, and T Nomura, and K Momose, and Y Ikeda, and Y Kondou, and H Akiho, and J Togami, and Y Kimura, and M Okada, and T Yamaguchi
Neuroscience & Gastrointestinal Research Laboratory, Yamanouchi Pharmaceutical Co., Ltd., 21 Miyukigaoka, Tsukuba, Ibaraki, 305, Japan. matsum_m@yamanouchi.co.jp

Neuropeptide Y (NPY), peptide YY (PYY), and pancreatic polypeptide (PP) belong to a family of structurally related peptides which have numerous functions in both neural and endocrine signaling. By homology screening, we cloned a novel gene sharing the highest homology with the NPY Y1 receptor gene from humans, rabbits, and several other species. This novel gene of rabbit encodes a functional NPY/PYY receptor, designated Y2b, which prefers NPY13-36 rather than [Leu31,Pro34]NPY despite its higher identity with the Y1 receptor. Although, at low levels, mRNA was detected in the tissues and brain regions, including hypothalamus. Further, sequence data revealed that this gene is the orthologue of the recently cloned mouse novel NPY receptor, Y5. However, our study demonstrates that the receptor function of this gene has been inactivated in primates by a frameshift mutation occurring early in primate evolution. This novel NPY receptor represents the first neurotransmitter receptor identified that has universally lost its receptor function in primate species. Interestingly, despite its inactivation in humans, the transcripts were abundantly detected in the heart and skeletal muscle, suggesting a novel function of the human gene.

UI MeSH Term Description Entries
D007031 Hypothalamus Ventral part of the DIENCEPHALON extending from the region of the OPTIC CHIASM to the caudal border of the MAMMILLARY BODIES and forming the inferior and lateral walls of the THIRD VENTRICLE. Lamina Terminalis,Preoptico-Hypothalamic Area,Area, Preoptico-Hypothalamic,Areas, Preoptico-Hypothalamic,Preoptico Hypothalamic Area,Preoptico-Hypothalamic Areas
D008297 Male Males
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009928 Organ Specificity Characteristic restricted to a particular organ of the body, such as a cell type, metabolic response or expression of a particular protein or antigen. Tissue Specificity,Organ Specificities,Specificities, Organ,Specificities, Tissue,Specificity, Organ,Specificity, Tissue,Tissue Specificities
D011323 Primates An order of mammals consisting of more than 300 species that include LEMURS; LORISIDAE; TARSIERS; MONKEYS; and HOMINIDS. They are characterized by a relatively large brain when compared with other terrestrial mammals, forward-facing eyes, the presence of a CALCARINE SULCUS, and specialized MECHANORECEPTORS in the hands and feet which allow the perception of light touch. Primate
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D011964 Receptors, Gastrointestinal Hormone Cell surface proteins that bind gastrointestinal hormones with high affinity and trigger intracellular changes influencing the behavior of cells. Most gastrointestinal hormones also act as neurotransmitters so these receptors are also present in the central and peripheral nervous systems. Gastrointestinal Hormone Receptors,Intestinal Hormone Receptors,Receptors, Gastrointestinal Peptides,Gastrointestinal Hormone Receptor,Intestinal Hormone Receptor,Receptors, Gastrointestinal Hormones,Receptors, Intestinal Hormone,Gastrointestinal Hormones Receptors,Gastrointestinal Peptides Receptors,Hormone Receptor, Gastrointestinal,Hormone Receptor, Intestinal,Hormone Receptors, Gastrointestinal,Hormone Receptors, Intestinal,Hormones Receptors, Gastrointestinal,Peptides Receptors, Gastrointestinal,Receptor, Gastrointestinal Hormone,Receptor, Intestinal Hormone
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D005075 Biological Evolution The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics. Evolution, Biological
D005260 Female Females

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