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BioAssay: AID 665483

Inhibition of human glutathione reductase at 100 uM after 10 mins by GSSH reduction assay

Thioredoxin reductase (TrxR) is critical for cellular redox regulation and is involved in tumor proliferation, apoptosis and metastasis. Its C-terminal redox-active center contains a cysteine (Cys497) and a unique selenocysteine (Sec498), which are exposed to solvent and easily accessible. Thus, it is becoming an important target for anticancer drugs. Selective inhibition of TrxR by more ..
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 Tested Compounds
 Tested Compounds
All(2)
 
 
Inactive(1)
 
 
Unspecified(1)
 
 
 Tested Substances
 Tested Substances
All(2)
 
 
Inactive(1)
 
 
Unspecified(1)
 
 
 Related BioAssays
 Related BioAssays
AID: 665483
Data Source: ChEMBL (822572)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2013-05-16
Modify Date: 2014-05-27

Data Table ( Complete ):           View All Data
Target
Sequence: RecName: Full=Glutathione reductase, mitochondrial; Short=GR; Short=GRase; Flags: Precursor
Description ..   
Protein Family: Pyridine nucleotide-disulphide oxidoreductase, dimerization domain
Comment ..   

Gene:GSR     Related Protein 3D Structures     More BioActivity Data..
Tested Compounds:
Description:
Title: Inhibition of thioredoxin reductase by a novel series of bis-1,2-benzisoselenazol-3(2H)-ones: Organoselenium compounds for cancer therapy.

Abstract: Thioredoxin reductase (TrxR) is critical for cellular redox regulation and is involved in tumor proliferation, apoptosis and metastasis. Its C-terminal redox-active center contains a cysteine (Cys497) and a unique selenocysteine (Sec498), which are exposed to solvent and easily accessible. Thus, it is becoming an important target for anticancer drugs. Selective inhibition of TrxR by 1,2-(bis-1,2-benzisoselenazol-3(2H)-one)ethane (4a) prevents proliferation of several cancer cell lines both in vivo and in vitro. Using the structure of 4a as a starting point, a series of novel bis-1,2-benzisoselenazol-3(2H)-ones was designed, prepared and tested to explore the structure-activity relationships (SARs) for this class of inhibitor and to improve their potency. Notably, 1,2-(5,5'-dimethoxybis(1,2-benzisoselenazol-3(2H)-one))ethane (12) was found to be more potent than 4a in both in vitro and in vivo evaluation. Its binding sites were confirmed by biotin-conjugated iodoacetamide assay and a SAR model was generated to guide further structural modification.
(PMID: 22579620)
Categorized Comment
Assay Type: Binding

Assay Data Source: Scientific Literature

BAO: Assay Format: biochemical format

Target Type: Target is a single protein chain

Protein Target Class: enzyme reductase

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)
Data Table ( Complete ):     View All Data
Classification
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