Selex
SELEX: Systemic Evolution of Ligands via EXponential Selection is the process of identifying specific aptamers.
To select a binding aptamer, you don't look for epitopes. this only simplifies the process as you don't design a determined structure but reduced little by little an already binding population. SELEX (Systemic Evolution of Ligands via EXponential Selection) is the process of identifying specific aptamers.