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Gehlert, D.R. et al.

Gehlert, Yang, George, Wang, Schober, Gackenheimer, Johnson, Beavers, Gadski, Baez,

Cloning and characterization of Rhesus monkey neuropeptide Y receptor subtypes.

Neuropeptide Y (NPY) is a 36 amino acid peptide that is abundant in the brain and peripheral nervous system. NPY has a variety of effects when administered into the brain including a pronounced feeding effect, anxiolysis, regulation of neuroendocrine axes and inhibition of neurotransmitter release. These effects are mediated by up to 6 G protein coupled receptors designated Y1, Y2, Y3, Y4, Y5 and y6. To better understand the phylogeny and pharmacology of NPY in non-human primates, we have cloned and expressed the NPY Y1, Y2 and Y5 receptor subtypes from the Rhesus monkey. No cDNA sequence encoding a Y4 receptor was found suggesting substantial sequence differences when compared to the human sequence. Comparison of these sequences with those from human indicated strong sequence conservation of Y1, Y2 and Y5 between the two species. The displacement of (125)I-PYY binding to the Rhesus monkey and human receptors by various peptides was compared to evaluate the pharmacology of the two species. Similar pharmacologies were noted across the species at the various receptor subtypes. These results indicate the Rhesus monkey and human NPY receptor subtypes have a close amino acid sequence conservation and that the peptide recognition domains are conserved as well.[1]

References

Cloning and characterization of Rhesus monkey neuropeptide Y receptor subtypes. Gehlert, D.R., Yang, P., George, C., Wang, Y., Schober, D., Gackenheimer, S., Johnson, D., Beavers, L.S., Gadski, R.A., Baez, M. Peptides (2001) [Pubmed]

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