| Assay Method Information | |
| | Homogeneous Time Resolved Fluorescence (HTRF) Assay |
| Description: | Table 2: Binding to Bcl-2 proteins Bcl-2, and Bcl-XL was also assessed using an HTRF assay. Background: FAM-Bak/Bad binds to surface pocket of the Bcl-2 protein family. This binding can be monitored by HTRF signals between anti-GST-Tb and FAM-peptide using GST-tagged Bcl proteins. Assay conditions: Bcl-2: 4 nM Bcl-2, 100 nM FAM-Bak peptide, Bcl-XL: 3 nM Bcl-XL, 40 nM FAM-Bad peptide in 20 mM K Phosphate, pH 7.5, 50 mM NaCl, 1 mM EDTA, 0.005% Triton X-100 and 1% DMSO (final). Assay procedure: Compounds were tested in 10-dose IC50 mode, in singlicate, with 3-fold serial dilution starting at 10 μM or 1 μM. Compound stock solutions were added to protein solution using Acoustic technology. The compounds were then incubated with protein for 10 min at room temperature. The respective FAM labeled peptide was added and incubated for another 10 min and then anti-GST-Tb was added. After 60 min at rt, the HTRF fluorescence signal ratio was measured. |
| Affinity data for this assay | |
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