Simulated Screens of DNA Encoded Libraries: The Potential Influence of Chemical Synthesis Fidelity on Interpretation of Structure-Activity Relationships.
Simulated screening of DNA encoded libraries indicates that the presence of truncated byproducts complicates the relationship between library member enrichment and equilibrium association constant (these truncates result from incomplete chemical reactions during library synthesis). Further, simulations indicate that some patterns observed in reported experimental data may result from the presence of truncated byproducts in the library mixture and not structure-activity relationships. Potential experimental methods of minimizing the presence of truncates are assessed via simulation; the relationship between enrichment and equilibrium association constant for libraries of differing purities is investigated. Data aggregation techniques are demonstrated that allow for more accurate analysis of screening results, in particular when the screened library contains significant quantities of truncates.
Roche Innovation Center Basel , Grenzacherstrasse 124, 4070 Basel, Switzerland.
Alexander L
AL
Satz
D020650:Combinatorial Chemistry Techniques / Q000379:methods*; D003198:Computer Simulation; D004247:DNA / Q000737:chemistry*; D008962:Models, Theoretical; D054852:Small Molecule Libraries / Q000138:chemical synthesis* / Q000737:chemistry*; D013329:Structure-Activity Relationship
D054852:Small Molecule Libraries; D004247:DNA
DEL; DNA conjugates; DNA encoded; combinatorial chemistry; combinatorial libraries; encoded library; hit ID; library screening; split-and-pool