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BioAssay: AID 627876

Inhibition of C-terminal His6-tagged human DNA polymerase kappa (amino acids 1 to 560) using poly(dA)/oligo(dT)18 (A/T = 2/1) and dTTP as the DNA template-primer and nucleotide substrate at 10 uM after 60 mins

We previously found that vitamin K(3) (menadione, 2-methyl-1,4-naphthoquinone) inhibits the activity of human mitochondrial DNA polymerase gamma (pol gamma). In this study, we focused on juglone (5-hydroxy-1,4-naphthoquinone), which is a 1,4-naphthoquinone derivative, and chemically synthesized novel juglones conjugated with C2:0 to C22:6 fatty acid (5-O-acyl juglones). The chemically modified more ..
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 Tested Compounds
 Tested Compounds
All(21)
 
 
Active(11)
 
 
Inactive(10)
 
 
 Tested Substances
 Tested Substances
All(21)
 
 
Active(11)
 
 
Inactive(10)
 
 
 Related BioAssays
 Related BioAssays
AID: 627876
Data Source: ChEMBL (785324)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2012-09-09
Modify Date: 2013-11-17

Data Table ( Complete ):           Active    All
Target
Sequence: RecName: Full=DNA polymerase kappa; AltName: Full=DINB protein; Short=DINP
Description ..   
Protein Family: DNA Polymerase IV/Kappa
Comment ..   

Gene:POLK     Related Protein 3D Structures     More BioActivity Data..
BioActive Compounds: 11
Description:
Title: Inhibitory effect of novel 5-O-acyl juglones on mammalian DNA polymerase activity, cancer cell growth and inflammatory response.

Abstract: We previously found that vitamin K(3) (menadione, 2-methyl-1,4-naphthoquinone) inhibits the activity of human mitochondrial DNA polymerase gamma (pol gamma). In this study, we focused on juglone (5-hydroxy-1,4-naphthoquinone), which is a 1,4-naphthoquinone derivative, and chemically synthesized novel juglones conjugated with C2:0 to C22:6 fatty acid (5-O-acyl juglones). The chemically modified juglones enhanced mammalian pol inhibition and their cytotoxic and anti-inflammatory activities. The juglone conjugated with oleic acid (C18:1-acyl juglone) showed the strongest inhibition of DNA replicative pol alpha activity and human colon carcinoma (HCT116) cell growth in 10 synthesized 5-O-acyl juglones. C12:0-Acyl juglone was the strongest inhibitor of DNA repair-related pol lambda, as well as the strongest suppression of the production of tumor necrosis factor (TNF)-alpha production induced by lipopolysaccharide (LPS) in the compounds tested. Moreover, this compound caused the greatest reduction in 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced acute inflammation in mouse ears. C12:0- and C18:1-Acyl juglones selectively inhibited the activities of mammalian pol species, but did not influence the activities of other pols and DNA metabolic enzymes tested. These data indicate that the novel 5-O-acyl juglones target anti-cancer and/or anti-inflammatory agents based on mammalian pol inhibition. Moreover, the results suggest that acylation of juglone is an effective chemical modification to improve the anti-cancer and anti-inflammation of vitamin K(3) derivatives, such as juglone.
(PMID: 21903399)
Categorized Comment
ChEMBL Assay Type: Binding

ChEMBL Assay Data Source: Scientific Literature

ChEMBL Target ID: 100932

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)
Classification
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