| Assay Method Information | |
| | Biochemical Coupled Assay |
| Description: | Recombinant human IDO or TDO was incubated in 50 mM KPO4 (pH 7.0), 0.5 mM EGTA, 0.5 mM EDTA, 0.05% Triton X100, 20 mM ascorbate, 10 μM methylene blue, 500 U/ml catalase, 50 μg/ml KynB (kynurenine formamidase). TDO assays were carried out in the presence of 330 μM L-tryptophan, while IDO assays had the addition of 45 μM L-tryptophan. After incubation for 17 minutes at room temperature the reactions were stopped by the addition of Erhlich's reagent and incubated at room temperature for 5 minutes before the fluorescence was read. |
| Affinity data for this assay | |
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