| Compound ID |
Cluster
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Compound Type
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Target Name | Img | Activity | Assay Description | Source | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Type
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Relation
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Value
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Unit
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| NAs.003536 | 0 | all-match | Genome polyprotein |  |
IC50 | = | 1200.0 | nM | Inhibition Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKΔ55) enzyme were incubated at room temperature for 1 hour. The assay was then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture was transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. The intrinsic potency (Ki) of an NTP inhibitor is derived from its NS5B IC50 using the Cheng-Prusoff equation for a competitive inhibitor, as described in Cheng et al., Biochem Pharmacol 22:3099-3108 (1973): Ki=IC50/(1+[S]/Km), where [S]=1 uM, and Km is the concentration of cognate NTP yielding half-maximal enzyme activity in the assay absent exogenous inhibitors. | CHEMBL3886494 | |
| NAs.003566 | 2 | all-match | Genome polyprotein |  |
Ki | = | 60.0 | nM | Radiolabeled Nucleotide Incorporation Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKDelta55) enzyme are incubated at room temperature for 1 hour. The assay is then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture is transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. | CHEMBL3638459 | |
| NAs.003596 | 0 | all-match | Genome polyprotein |  |
IC50 | = | 87.0 | nM | Inhibition Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKΔ55) enzyme were incubated at room temperature for 1 hour. The assay was then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture was transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. The intrinsic potency (Ki) of an NTP inhibitor is derived from its NS5B IC50 using the Cheng-Prusoff equation for a competitive inhibitor, as described in Cheng et al., Biochem Pharmacol 22:3099-3108 (1973): Ki=IC50/(1+[S]/Km), where [S]=1 uM, and Km is the concentration of cognate NTP yielding half-maximal enzyme activity in the assay absent exogenous inhibitors. | CHEMBL3886494 | |
| NAs.003614 | 2 | all-match | Genome polyprotein |  |
EC50 | > | 100000.0 | nM | Inhibition of Enterovirus 71 Shenzhen/120F1/09 capsid infected in human RD cells assessed as reduction in virus-induced cell death after 72 hrs by CCK-8 assay | CHEMBL4190331 | |
| NAs.004204 | 0 | all-match | Genome polyprotein |  |
Ki | = | 70.0 | nM | Radiolabeled Nucleotide Incorporation Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKDelta55) enzyme are incubated at room temperature for 1 hour. The assay is then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture is transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. | CHEMBL3638459 | |
| NAs.004299 | 0 | all-match | Genome polyprotein |  |
Ki | = | 4700.0 | nM | Radiolabeled Nucleotide Incorporation Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKDelta55) enzyme are incubated at room temperature for 1 hour. The assay is then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture is transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. | CHEMBL3638459 | |
| NAs.004318 | 0 | all-match | Genome polyprotein |  |
Ki | = | 6000.0 | nM | Radiolabeled Nucleotide Incorporation Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKDelta55) enzyme are incubated at room temperature for 1 hour. The assay is then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture is transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. | CHEMBL3638459 | |
| NAs.004576 | 0 | all-match | Genome polyprotein |  |
Ki | = | 1500.0 | nM | Radiolabeled Nucleotide Incorporation Assay: To measure inhibition of the enzymatic activity of the HCV NS5B RNA-dependent RNA polymerase by the nucleoside triphosphate compounds of the present invention, a radiolabeled nucleotide incorporation assay was used. This assay is a modified version of the assay described in International Publication No. WO2002/057287. Briefly, 50 uL reactions containing 20 mM HEPES (pH 7.3); 7.5 mM DTT; 20 units/ml RNasIN; 1 uM each of ATP, GTP, UTP and CTP; 20 uCi/mL [33P]-CTP; 10 mM MgCl; 60 mM NaCl; 100 ug/ml BSA; 0.021 uM DCoH heteropolymer RNA template; and 5 nM NS5B (1b-BKDelta55) enzyme are incubated at room temperature for 1 hour. The assay is then terminated by the addition of 500 mM EDTA (50 uL). The reaction mixture is transferred to a Millipore DE81 filter plate and the incorporation of labeled CTP is determined using Packard TopCount. Compound IC50 values can then be calculated from experiments with 10 serial 3-fold dilutions of the inhibitor in duplicate. | CHEMBL3638459 | |
| NAs.005761 | 7 | all-match | Genome polyprotein |  |
IC50 | = | 29030.0 | nM | Inhibition of Dengue virus type 2 NS5 RNA methyltransferase SAM site | CHEMBL1156914 | |
| NAs.005761 | 7 | all-match | Genome polyprotein | |
IC50 | > | 100000.0 | nM | Inhibition of Dengue virus type 2 NS5 RNA methyltransferase SAM site with 0.1 % TX100 | CHEMBL1156914 | |