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Trends Neurosci. 1998 May;21(5):215-21.

Orphanin FQ/nociceptin: a role in pain and analgesia, but so much more.

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1
Dept of Cell and Developmental Biology, Oregon Health Sciences University, Portland, USA.

Abstract

The publication of the delta opioid receptor sequence led to the cloning of three homologous receptors: the mu and kappa opioid receptors, and a novel opioid-like orphan receptor. The orphan receptor's endogenous ligand, a 17-amino-acid peptide that resembles dynorphin, was named 'orphanin FQ' and 'nociceptin' (OFQ/N1-17). The OFQ/N1-17 receptor is expressed widely in the nervous system, and it is becoming clear that the peptide is likely to participate in a broad range of physiological and behavioral functions. At the cellular level, OFQ/N1-17 has much in common with the classical opioids; however, functional studies are now revealing distinct actions of this peptide. Identified only two years ago, OFQ/N1-17 has already attracted a great deal of attention. The number and diversity of papers focused on OFQ/N1-17 at the recent meeting of the Society for Neuroscience augur an exciting future for this new peptide.

PMID:
9610886
[Indexed for MEDLINE]
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