Once your Discovery Access application has been accepted, we coordinate assay transfer, reproducing your data and systematically optimising, miniaturising and automating the assay.
The assay is then validated in a pilot screen of approximately 10,000 compounds run in duplicate. On successful validation, a full screen of up to 300,000 small molecules (single point) is undertaken. Hits are triaged based on their activity, with technology artefacts minimised by use of a counter-screen assay.
For projects that include virtual screening, up to 5 million compounds will be assessed against your target at the Bio21 Institute while the single-point physical screen is in progress at the NDDC. After clustering and diversity selection, the top-ranked hits will be purchased and prepared for testing in the physical assay.
Hits from the single-point primary screen and the virtual screen will then be tested in 5- or 10-point dose–response experiments, enabling us to provide you with EC50s of the most promising hit compounds.