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BioAssay: AID 739752

Inhibition of GSK3a (unknown origin) using [gamma-33P]ATP assessed as residual activity at 3 uM

Focal adhesion kinase (FAK) regulates cell survival and proliferation pathways. Here we report the discovery of a highly selective series of 1,5-dihydropyrazolo[4,3-c][2,1]benzothiazines that demonstrate a novel mode of allosteric inhibition of FAK. These compounds showed slow dissociation from unphosphorylated FAK and were noncompetitive with ATP after long preincubation. Co-crystal structural more ..
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 Tested Compounds
 Tested Compounds
All(1)
 
 
Unspecified(1)
 
 
 Tested Substances
 Tested Substances
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Unspecified(1)
 
 
 Related BioAssays
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AID: 739752
Data Source: ChEMBL (952320)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2013-11-07
Modify Date: 2014-05-27

Data Table ( Complete ):           View All Data
Target
Sequence: RecName: Full=Glycogen synthase kinase-3 alpha; Short=GSK-3 alpha; AltName: Full=Serine/threonine-protein kinase GSK3A
Description ..   
Protein Family: Protein Kinases, catalytic domain
Comment ..   

Gene:GSK3A     Related Protein 3D Structures     More BioActivity Data..
Tested Compound:
Description:
Title: Discovery and characterization of novel allosteric FAK inhibitors.

Abstract: Focal adhesion kinase (FAK) regulates cell survival and proliferation pathways. Here we report the discovery of a highly selective series of 1,5-dihydropyrazolo[4,3-c][2,1]benzothiazines that demonstrate a novel mode of allosteric inhibition of FAK. These compounds showed slow dissociation from unphosphorylated FAK and were noncompetitive with ATP after long preincubation. Co-crystal structural analysis revealed that the compounds target a novel allosteric site within the C-lobe of the kinase domain, which induces disruption of ATP pocket formation leading to the inhibition of kinase activity. The potency of allosteric inhibition was reduced by phosphorylation of FAK. Coupled SAR analysis revealed that N-substitution of the fused pyrazole is critical to achieve allosteric binding and high selectivity among kinases.
(PMID: 22819505)
Categorized Comment
Assay Type: Binding

Assay Data Source: Scientific Literature

BAO: Assay Format: biochemical format

Target Type: Target is a single protein chain

Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Activity activity commentActivity activity commentString
2Activity standard flagActivity standard flagInteger
3Activity qualifierActivity qualifierString
4Activity published valueActivity published valueFloat%
5Activity standard valueActivity standard valueFloat%

Data Table (Concise)
Data Table ( Complete ):     View All Data
Classification
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