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BioAssay: AID 730861

Agonist activity at FLAG-tagged mu-type opioid receptor (unknown origin) expressed in HEK293 cells assessed as inhibition of forskolin-stimulated cAMP accumulation after 30 mins by liquid scintillation counting analysis relative to DAMGO

Recently we reported the synthesis and structure-activity study of endomorphin-1 (EM-1) analogues containing novel, unnatural alpha-methylene-beta-aminopropanoic acids (Map). In the present study, we describe new EM-1 analogues containing Dmt(1), (R/S)-betaPro(2), and (ph)Map(4)/(2-furyl)Map(4). All of the analogues showed a high affinity for the mu-opioid receptor (MOR) and increased stability more ..
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 Tested Compounds
 Tested Compounds
All(11)
 
 
Unspecified(11)
 
 
 Tested Substances
 Tested Substances
All(11)
 
 
Unspecified(11)
 
 
 Related BioAssays
 Related BioAssays
AID: 730861
Data Source: ChEMBL (943429)
Depositor Category: Literature, Extracted
Deposit Date: 2013-11-07

Data Table ( Complete ):           All
Target
Sequence: RecName: Full=Mu-type opioid receptor; Short=M-OR-1; Short=MOR-1; AltName: Full=Mu opiate receptor; AltName: Full=Mu opioid receptor; Short=MOP; Short=hMOP
Description ..   
Protein Family: Serpentine type 7TM GPCR chemoreceptor Srx
Comment ..   

Gene:OPRM1     Related Protein 3D Structures     More BioActivity Data..
Tested Compounds:
Description:
Title: Design, synthesis, and pharmacological characterization of novel endomorphin-1 analogues as extremely potent mu-opioid agonists.

Abstract: Recently we reported the synthesis and structure-activity study of endomorphin-1 (EM-1) analogues containing novel, unnatural alpha-methylene-beta-aminopropanoic acids (Map). In the present study, we describe new EM-1 analogues containing Dmt(1), (R/S)-betaPro(2), and (ph)Map(4)/(2-furyl)Map(4). All of the analogues showed a high affinity for the mu-opioid receptor (MOR) and increased stability in mouse brain homogenates. Of the new compounds, Dmt(1)-(R)-betaPro(2)-Trp(3)-(2-furyl)Map(4) (analogue 12) displayed the highest affinity toward MOR, in the picomolar range (Ki(mu) = 3.72 pM). Forskolin-induced cAMP accumulation assays indicated that this analogue displayed an extremely high agonistic potency, in the subpicomolar range (EC50 = 0.0421 pM, Emax = 99.5%). This compound also displayed stronger in vivo antinociceptive activity after iv administration when compared to morphine in the tail-flick test, which indicates that this analogue was able to cross the blood-brain barrier.
(PMID: 23477419)
Categorized Comment
ChEMBL Assay Type: Binding

ChEMBL Assay Data Source: Scientific Literature

ChEMBL Target ID: 129

ChEMBL Target Type: Target is a single protein chain

Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Emax activity commentEmax activity commentString
2Emax standard flagEmax standard flagInteger
3Emax qualifierEmax qualifierString
4Emax published valueEmax published valueFloat%
5Emax standard valueEmax standard valueFloat%

Data Table (Concise)
Classification
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