| Assay Method Information | |
| | LSD1 Inhibition Assay |
| Description: | A test compound dissolved in 2.5% DMSO was added by 4 μL to 3 μL reaction solution (50 mM Tris-HCl (pH 8.0), 0.1% BSA, 1 mM DTT) containing 7.5 ng of LSD1, and the mixture was reacted at room temperature for 60 min. Biotin-histone H3 mono methylated K4 peptide solution (NH2-ART(me-K)QTARKSTGGKAPRKQLAGGK(Biotin)-CONH2) (3.3 μM) was added by 3 μL to start the reaction. After reaction at room temperature for 5 min, 1 mM 2-PCPA solution was added 5 μL to terminate the reaction. A detection solution (BOO mM potassium fluoride, 0.1% BSA) containing europium-labeled anti-histone H3 antibody (Wako Pure Chemical Industries, Ltd.) and Streptavidin-XL665 (Cisbio) was further added by 5 μL, and the mixture was left standing for 60 min. A time-resolved fluorescence (excitation 320 nm, emission 615 nm, 665 nm) was measured by Envision (PerkinElmer). The LSD1 inhibitory rate (%) of the test compound was calculated by the following formula.inhibitory rate(%)=(1−(test compound count−blank)÷(control−blank))×100 |
| Affinity data for this assay | |
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