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BioAssay: AID 600426

Antagonist activity at human recombinant NOP expressed in CHO cells by [35S]GTPgammaS binding assay

Twelve derivatives of the nociceptin/orphanin FQ (N/OFQ) receptor (NOP) antagonist 1-benzyl-N-{3-[spiroisobenzofuran-1(3H),4'-piperidin-1-yl]propyl} pyrrolidine-2-carboxamide (Comp 24) were synthesized and tested in binding experiments performed on CHO(hNOP) cell membranes. Among them, a novel interesting NOP receptor antagonist (compound 35) was identified by blending chemical moieties taken more ..
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 Tested Compounds
 Tested Compounds
All(1)
 
 
Active(1)
 
 
 Tested Substances
 Tested Substances
All(1)
 
 
Active(1)
 
 
AID: 600426
Data Source: ChEMBL (750577)
BioAssay Type: Confirmatory, Concentration-Response Relationship Observed
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2012-02-15
Modify Date: 2014-05-25

Data Table ( Complete ):           Active    All
Target
Sequence: RecName: Full=Nociceptin receptor; AltName: Full=Kappa-type 3 opioid receptor; Short=KOR-3; AltName: Full=Orphanin FQ receptor
Description ..   
Protein Family: Serpentine type 7TM GPCR chemoreceptor Srx
Comment ..   

Gene:OPRL1     Related Protein 3D Structures     More BioActivity Data..
BioActive Compound: 1
Description:
Title: Structure-activity studies on the nociceptin/orphanin FQ receptor antagonist 1-benzyl-N-{3-[spiroisobenzofuran-1(3H),4'-piperidin-1-yl]propyl} pyrrolidine-2-carboxamide.

Abstract: Twelve derivatives of the nociceptin/orphanin FQ (N/OFQ) receptor (NOP) antagonist 1-benzyl-N-{3-[spiroisobenzofuran-1(3H),4'-piperidin-1-yl]propyl} pyrrolidine-2-carboxamide (Comp 24) were synthesized and tested in binding experiments performed on CHO(hNOP) cell membranes. Among them, a novel interesting NOP receptor antagonist (compound 35) was identified by blending chemical moieties taken from different NOP receptor ligands. In vitro in various assays, Compound 35 consistently behaved as a pure, highly potent (pA(2) in the range 8.0-9.9), competitive and NOP selective antagonist. However compound 35 was found inactive when challenged against N/OFQ in vivo in the mouse tail withdrawal assay. Thus, the usefulness of the novel NOP ligand compound 35 is limited to in vitro investigations.
(PMID: 19527931)
Comment
Compounds with activity <= 50uM or explicitly reported as active by ChEMBL are flagged as active in this PubChem assay presentation.

Categorized Comment
Assay Type: Binding

Assay Data Source: Scientific Literature

BAO: Assay Format: cell-based format

Assay Cell Type: CHO

Target Type: Target is a single protein chain

Result Definitions
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TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Kd*Kd PubChem standard valueFloatμM
3BEIBinding Efficiency Index(nM)Float
2SEISurface Efficiency Index(nM)Float
4LELigand EfficiencyFloat
5LLELipophilic Ligand EfficiencyFloat
6Kd activity commentKd activity commentString
7Kd standard flagKd standard flagInteger
8Kd qualifierKd qualifierString
9Kd published valueKd published valueFloat
10Kd standard valueKd standard valueFloatnM
11Kd binding domainsKd binding domainsString

* Activity Concentration.

Data Table (Concise)
Classification
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