| Assay Method Information | |
| | Phosphatase Assays |
| Description: | IC50 values were estimated using 6,8-difluoro-4-methylumbelliferyl phosphate (DiFMUP) as a substrate, SHP2 samples (diluted to 0.5 nM in reaction buffer) were incubated with dPEG8 peptide for 30 min in reaction buffer[60 mM 3,3-dimethyl glutarate (pH7.2), 75 mM NaCl, 75 mM KCl, and 1 mM EDTA, 0.05% Tween 20, 2 mM dithiothreitol (DTT)] to active the PTP. DMSO [0.5% (v/v)] or compounds (concentrations ranging from 0.3 nM to 1 μM) were added to the mixture and incubated for 30 min at room temperature. Reactions were initiated by the addition of DiFMUP (12 μM; total reaction volume of 100 μL), and the fluorescence (excitation at 340 nm, emission at 450 nm) of the resulting solutions was measured on a 2104-0020 EnVision Xcite Multilabel Reader (PerkinElmer) after 30 min. |
| Affinity data for this assay | |
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