| Assay Method Information | |
| | Homogeneous Time-Resolved Fluorescence (HTRF) Assay |
| Description: | Homogeneous Time-Resolved Fluorescence (HTRF) assay for the recombinant human Syk enzyme: A recombinant GST-hSyk fusion protein was used to measure potency of compounds to inhibit human Syk activity. The recombinant human GST-Syk (Carna Biosciences #08- 176) (5pM final concentration) was incubated with variousconcentrations of the inhibitor diluted in DMSO (0.1% final concentration) for 10 minutes at room temperature in 15 mM Tris-HCl (pH 7.5), 0.01% tween 20, 2 mM DTT in 384 well plate format. To initiate the reaction the biotinylated substrate peptide (250 nM final concentration) that contains the phosphorylation site for Syk was added with magnesium (5 mM final concentration) and ATP (25 uM final concentration). Final volume of the reaction was 10 u . Phosphorylation of the peptide was allowed to proceed for 45 minutes at room temperature. |
| Affinity data for this assay | |
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