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Development of a Backbone Cyclic Peptide Library as Potential Antiparasitic Therapeutics Using Microwave Irradiation
Published on: January 26, 2016
Friendly strategy to prepare encoded one bead-one compound cyclic peptide library.
Silvana L Giudicessi1, Juan M Gurevich-Messina, María C Martínez-Ceron
1Cathedra of Industrial Microbiology and Biotechnology, School of Pharmacy and Biochemistry, University of Buenos Aires , Junín 956, (1113) Buenos Aires, Argentina.
ACS Combinatorial Science
|August 27, 2013
Summary
This study presents a novel method for synthesizing and identifying cyclic peptides using a one bead-one peptide library approach. This strategy enables efficient screening of target protein ligands, advancing affinity chromatography and drug discovery.
Area of Science:
- Biochemistry
- Organic Chemistry
- Proteomics
Background:
- One bead-one peptide libraries are crucial for identifying protein ligands.
- Cyclic peptides offer high affinity, selectivity, and protease stability, making them ideal for affinity chromatography.
Purpose of the Study:
- To develop an efficient strategy for synthesizing and identifying cyclic peptides using mass spectrometry (MS).
- To facilitate the screening of cyclic peptides as ligands for target proteins.
Main Methods:
- A novel library synthesis strategy involving sequential amino acid incorporation onto Gly-oxymethylbenzamide-ChemMatrix (Gly-HMBA-CM) resin.
- Combinatorial library synthesis using the divide-couple-recombine method.
- Solid-phase cyclization of peptides via Asp side chain and N-terminus, followed by cleavage and MS/MS sequencing.
Main Results:
- Successful synthesis of a cyclic peptide library with high capacity using ChemMatrix resin.
- Efficient identification of cyclic peptides through MALDI-TOF MS/MS sequencing from single beads.
- Demonstrated feasibility of the method for identifying specific peptide ligands.
Conclusions:
- The developed method enables efficient synthesis and identification of cyclic peptides.
- This approach is valuable for discovering ligands for affinity chromatography and other applications.
- The combination of high-capacity resin and sensitive MS allows for rapid screening and identification.
