| Assay Method Information | |
| | PDL1/PD1 Binding Assay |
| Description: | Compounds to be tested were serially diluted in DMSO, and further diluted in assay buffer (25 mM Hepes pH 7.4, 150 mM NaCl, 0.005% Tween 20, BSA 0.01%). Diluted compounds were added to the wells with final concentration of DMSO at 1%. PDL1-6×His protein was added to the wells, mixed well with compound. The plates were incubated for 30 min at room temperature. PD1-Fc-Avi-Biotin protein was added to the wells. Final concentration of PDL1 and PD1 protein is 0.3 nM and 2.5 nM, respectively. After a binding time of 30 min at room temperature, Anti-6×His Acceptor beads (final concentration 20 ug/ml) were added to the wells, and the incubation continued for 1 h. Streptavidin Donor beads (final concentration 20 ug/mL) were added at reduced light. The plates were sealed with foil and incubated in the dark for additional 1 h or overnight before reading on an Envision reader. |
| Affinity data for this assay | |
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