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Assembly of PNA-Tagged Small Molecules, Peptides, and Carbohydrates onto DNA Templates: Programming

2025-03-27 生物化学 加入收藏
The biochemical stability and desirable hybridization properties of peptide nucl

The biochemical stability and desirable hybridization properties of peptide nucleic acids (PNA) coupled to the robustness of the peptidic chemistry involved in their oligomerization make them an attractive nucleic acid tag to encode molecules and program their assembly into higher order oligomers. The ability to program the dimerization of ligands with controlled distance between the ligands has important applications in emulating multimeric interactions. Additionally, the ability to program different permutations of ligand assemblies in a combinatorial fashion provides access to a broad diversity and offers a rapid screening method for fragment based approaches to drug discovery. Herein, we describe protocols to covalently link diverse carbohydrates, peptides, or small molecules to PNA and combinatorially assemble them in solution onto libraries of DNA templates or onto DNA microarrays using a commercial platform without recourse to specialized equipment or heavy upfront investment.

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