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BioAssay: AID 648189

Inhibition of ovine COX1 at 1 nM to 1 mM by fluorescence assay

A series of fluorobenzoylated di- and tripeptides as potential leads for the development of molecular probes for imaging of COX-2 expression was prepared according to standard Fmoc-based solid-phase peptide synthesis. All peptides were assessed for their COX-2 inhibitory potency and selectivity profile in a fluorescence-based COX binding assay. Within the series of 15 peptides tested, more ..
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 Tested Compounds
 Tested Compounds
All(12)
 
 
Inactive(12)
 
 
 Tested Substances
 Tested Substances
All(12)
 
 
Inactive(12)
 
 
 Related BioAssays
 Related BioAssays
AID: 648189
Data Source: ChEMBL (805637)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2012-09-09
Modify Date: 2013-11-17

Data Table ( Complete ):           All
Target
Sequence: RecName: Full=Prostaglandin G/H synthase 1; AltName: Full=Cyclooxygenase-1; Short=COX-1; AltName: Full=Prostaglandin H2 synthase 1; Short=PGH synthase 1; Short=PGHS-1; Short=PHS 1; AltName: Full=Prostaglandin-endoperoxide synthase 1; Flags: Precursor
Description ..   
Protein Family: Animal prostaglandin endoperoxide synthase and related bacterial proteins
Comment ..   

Gene:PTGS1     Related Protein 3D Structures     More BioActivity Data..
Tested Compounds:
Description:
Title: Synthesis and evaluation of fluorobenzoylated di- and tripeptides as inhibitors of cyclooxygenase-2 (COX-2).

Abstract: A series of fluorobenzoylated di- and tripeptides as potential leads for the development of molecular probes for imaging of COX-2 expression was prepared according to standard Fmoc-based solid-phase peptide synthesis. All peptides were assessed for their COX-2 inhibitory potency and selectivity profile in a fluorescence-based COX binding assay. Within the series of 15 peptides tested, cysteine-containing peptides numbered 7, 8, 11 and 12, respectively, were the most potent COX-2 inhibitors possessing IC(50) values ranging from 5 to 85 muM. Fluorobenzoylated tripeptides 7 and 8 displayed some COX-2 selectivity (COX-2 selectivity index 2.1 and 1.6), whereas fluorobenzoylated dipeptides 11 and 12 were shown not to be COX-2 selective. Fluorbenzoylated tripeptide FB-Phe-Cys-Ser-OH was further used in molecular modeling docking studies to determine the binding mode within the active site of the COX-2 enzyme.
(PMID: 22386983)
Categorized Comment
ChEMBL Assay Type: Binding

ChEMBL Assay Data Source: Scientific Literature

ChEMBL Target ID: 17047

ChEMBL Target Type: Target is a single protein chain

Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Inhibition activity commentInhibition activity commentString
2Inhibition standard flagInhibition standard flagInteger
3Inhibition qualifierInhibition qualifierString
4Inhibition published valueInhibition published valueFloat
5Inhibition standard valueInhibition standard valueFloat

Data Table (Concise)
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