DNA-encoded libraries (DELs) can contain billions of unique chemical species; selecting against such large inputs, it is typical to find more candidate binders than is reasonable to pursue for follow-up synthesis and testing. Given this wealth of choices, common practice is to limit synthesis to only those compounds estimated to have the greatest chance of being high-affinity binders; of the many potential factors contributing to this estimation, the strength of the selection signal of a candidate binder is always important. We define here methods and equations which relate the theoretical selection signal of a compound to its affinity and chemical yield. Tests using known binders of BRD4 and ROCK2 support the theory backing these equations and suggest they should be of use for prospectively determining affinity and chemical yield from primary DEL selection data.
Biochemical and Biophysical Research Communications Volume 527, Issue 1, 18 June 2020, Pages 250-256
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