Isolation and structure of the endogenous agonist of opioid receptor-like ORL1 receptor

0301 basic medicine DNA, Complementary Opioid Peptides -- physiology Molecular Sequence Data Antisense -- pharmacology CHO Cells Opioid Peptides -- isolation & purification Dynorphins DNA, Antisense Nociceptin Receptor Opioid Peptides -- chemistry 03 medical and health sciences Complementary Cricetinae Receptors Animals Humans Amino Acid Sequence Base Sequence DNA Sciences bio-médicales et agricoles Rats 3. Good health Opioid -- agonists Opioid Peptides Receptors, Opioid Dynorphins -- chemistry
DOI: 10.1038/377532a0 Publication Date: 2003-06-12T23:57:39Z
ABSTRACT
The ORL1 receptor, an orphan receptor whose human and murine complementary DNAs have recently been characterized, structurally resembles opioid receptors and is negatively coupled with adenylate cyclase. ORL1 transcripts are particularly abundant in the central nervous system. Here we report the isolation, on the basis of its ability to inhibit the cyclase in a stable recombinant CHO(ORL1+) cell line, of a neuropeptide that resembles dynorphin A9 and whose amino acid sequence is Phe-Gly-Gly-Phe-Thr-Gly-Ala-Arg-Lys-Ser-Ala-Arg-Lys-Leu-Ala-Asn-Gln. The rat-brain cDNA encodes the peptide flanked by Lys-Arg proteolytic cleavage motifs. The synthetic heptadecapeptide potently inhibits adenylate cyclase in CHO(ORL1+) cells in culture and induces hyperalgesia when administered intracerebroventricularly to mice. Taken together, these data indicate that the newly discovered heptadecapeptide is an endogenous agonist of the ORL1 receptor and that it may be endowed with pro-nociceptive properties.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (17)
CITATIONS (1641)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....