Nociceptin(Orphanin FQ)

Modify Date: 2024-01-16 18:09:35

Nociceptin(Orphanin FQ) Structure
Nociceptin(Orphanin FQ) structure
Common Name Nociceptin(Orphanin FQ)
CAS Number 170713-75-4 Molecular Weight 1809.037
Density 1.5±0.1 g/cm3 Boiling Point N/A
Molecular Formula C79H129N27O22 Melting Point N/A
MSDS Chinese USA Flash Point N/A

 Use of Nociceptin(Orphanin FQ)


Nociceptin, a heptadecapeptide, is the endogenous ligand of the nociceptin receptor, acting as a potent anti-analgesic.

 Names

Name Orphanin FQ
Synonym More Synonyms

 Nociceptin(Orphanin FQ) Biological Activity

Description Nociceptin, a heptadecapeptide, is the endogenous ligand of the nociceptin receptor, acting as a potent anti-analgesic.
Related Catalog
In Vitro Nociceptin (1 μg/mL) significantly prevents LPS (10 ng/mL)-stimulated cell migration whereas it is ineffective when added alone. Nociceptin (1 nM-10 μM) elicits a concentration-dependent blockade of LPS-mediated cell migration, with a maximal effect at 1 and 10 μM. Nociceptin counteracts LPS-induced elevation of IL-1β mRNA levels. Nociceptin (1 μM) and NNC 55-0396 induce apoptotic cell death in U87 cells. Nociceptin (1 μM) counteracts LPS-induced [Ca2+]i increase in U87 cells via β-arrestin 2. Nociceptin counteracts the LPS-induced phosphorylation of PKC and ERK in U87 cells. Nociceptin inhibits the LPS-mediated transcriptional activation of NF-kB and AP-1 reporter genes[1].
Cell Assay Cell proliferation assay is carried out in the assay. U87 cells are plated on 12-well plate and treated for 24 h maintained in cell culture medium containing 10% fetal bovine serum. Five hours before the end of the treatments, [methyl-3H] Thymidine (50 nM final concentration) is added to serum-free cell culture medium and the plate is incubated at 37°C. Thereafter, medium is removed and cells are washed twice with PBS. 200 μL of PBS is added to each well, the cells are scraped off and centrifuged at 13,000g for 3 min at 4°C; supernatants are then discarded, pellets resuspended in 500 μL of cold trichloroacetic acid (10% w/v), incubated on ice for 20 min and centrifuged at 13,000g for 3 min at 4°C. The obtained supernatant is then discarded, pellet suspended in 500 μL of cold methanol and centrifuged at 3 min for 13,000g at 4°C. After that, the pellet is suspended in 200 μL of NaOH 1 N and heated at 55°C for 10 min. Samples are then neutralized with 200 μL of HCl 1 N and 350 μL of the labeled DNA incubated in counting vials with 4 mL of Filter Count scintillation liquid. Vials are vortexed and incubated overnight at room temperature and the radioactivity is determined by liquid scintillation spectrometry.
References

[1]. Bedini A, et al. Nociceptin/orphanin FQ antagonizes lipopolysaccharide-stimulated proliferation, migration and inflammatory signaling in human glioblastoma U87 cells. Biochem Pharmacol. 2017 Sep 15;140:89-104.

 Chemical & Physical Properties

Density 1.5±0.1 g/cm3
Molecular Formula C79H129N27O22
Molecular Weight 1809.037
Exact Mass 1807.980591
PSA 831.40000
LogP -6.33
Index of Refraction 1.657
Storage condition -20°C

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
RIDADR NONH for all modes of transport

 Articles4

More Articles
Pharmacological characterization of the nociceptin receptor, ORL1. Insight from the inward rectifier activation in the periaqueductal gray.

J. Biomed. Sci. 7 , 232, (2000)

A novel opioid receptor-like orphan receptor (ORL1) was cloned and identified to be homologous to classical opioid receptors but insensitive to traditional opioids. A heptadecapeptide, termed orphanin...

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

Nature 377 , 532-535, (1995)

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 cycla...

Orphanin FQ: a neuropeptide that activates an opioidlike G protein-coupled receptor.

Science 270 , 792-794, (1995)

A heptadecapeptide was identified and purified from porcine brain tissue as a ligand for an orphan heterotrimeric GTP-binding protein (G protein)-coupled receptor (LC132) that is similar in sequence t...

 Synonyms

Nociceptin
Orphanin FQ
L-Phenylalanylglycylglycyl-L-phenylalanyl-L-threonylglycyl-L-alanyl-L-arginyl-L-lysyl-L-seryl-L-alanyl-L-arginyl-L-lysyl-L-leucyl-L-alanyl-L-asparaginyl-L-glutamine
L-Glutamine,L-phenylalanylglycylglycyl-L-phenylalanyl-L-threonylglycyl-L-alanyl-L-arginyl-L-lysyl-L-seryl-L-alanyl-L-arginyl-L-lysyl-L-leucyl-L-alanyl-L-asparaginyl
L-Glutamine, L-phenylalanylglycylglycyl-L-phenylalanyl-L-threonylglycyl-L-alanyl-L-arginyl-L-lysyl-L-seryl-L-alanyl-L-arginyl-L-lysyl-L-leucyl-L-alanyl-L-asparaginyl-