| Assay Method Information | |
| | Time Resolved Fluorescence (TRF) Assay |
| Description: | The probe binding HDAC11 assay was performed using a time resolved fluorescence (TRF) assay format. Recombinant N-terminal GST tag full-length human HDAC11 was expressed and purified from baculovirus in Sf9 insect cells (SignalChem, # H93-30G-1000). Each assay was performed in 1536 black well microplates (Corning, #3936) in a final volume of 8 L in assay buffer containing 50 mM HEPES (pH 7.5), 50 mM KCl, 50 mM NaCl, 0.5 mM GSH (L-Glutathione reduced, Sigma #G4251), 0.03% BGG (0.22 M filtered, Sigma, #G7516-25G), and 0.01% Triton X-100 (Sigma, #T9284-10L). 100 nL of 10-point, 3-fold serial dilution in DMSO was pre-dispensed into respective wells of 1536 assay plates for a final test concentration range of 25 M to 1.3 nM respectively. The final concentration in the assay of HDAC11 and probe (a fluorescein labeled HDAC 11 inhibitor) was 2.5 nM and 20 nM respectively. 4 L of 2 probe and 2 anti-GST Terbium (Cisbio, #61GSTXLB) was added to assay plates followed by 4 L of 2 HDAC11. Plates were incubated for 16 hours at room temperature before time resolved fluorescence was read on the Envision (Excitation at 340 nm, and Emission at 485 nm and 535 nm, Perkin Elmer). |
| Affinity data for this assay | |
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