Characterization of DNA-conjugated compounds using a regenerable chip

Area of Science:

• Medicinal Chemistry
• Chemical Biology
• Drug Discovery Technologies

Background:

• DNA-encoded chemical libraries (DECLs) are powerful tools for identifying drug leads.
• Current DECL methods provide compound counts but lack precise binding affinity data.
• Accurate affinity ranking is crucial for effective lead optimization in drug discovery.

Purpose of the Study:

• To develop an automated, high-throughput assay for kinetic characterization of DECL compounds.
• To enable precise ranking of binding affinities between DECL compounds and protein targets.
• To apply the method to both single and dual-pharmacophore DECLs.

Main Methods:

• A novel chip-based platform for automated high-throughput screening.
• Kinetic characterization of interactions between DNA-conjugated compounds and protein targets.
• Application to diverse DECL formats, including single and dual-pharmacophore libraries.

Main Results:

• Demonstrated a chip-based approach for automated kinetic characterization of DECLs.
• Enabled precise ranking of binding affinities, overcoming limitations of traditional DECL screening.
• Successfully applied the assay to both single-pharmacophore and self-assembled dual-pharmacophore DECLs.

Conclusions:

• The developed chip-based assay significantly enhances the utility of DECL technology.
• This method provides crucial kinetic data for accurate affinity ranking and lead optimization.
• The assay's versatility supports various DECL formats, advancing drug discovery pipelines.