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Split-and-pool Synthesis and Characterization of Peptide Tertiary Amide Library
Published on: June 20, 2014
Genetically encoded libraries of nonstandard peptides.
Takashi Kawakami1, Hiroshi Murakami
1Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo 153-8902, Japan.
Journal of Nucleic Acids
|October 26, 2012
Summary
Non-standard peptides with improved biological properties are created using genetic code expansion or reprogramming. These methods enable the direct ribosomal synthesis of diverse non-standard peptide libraries for various applications.
Area of Science:
- Biochemistry
- Molecular Biology
- Synthetic Biology
Background:
- Non-standard peptides, containing nonproteinogenic moieties, exhibit enhanced biological properties.
- These peptides are valuable for biological, therapeutic, and diagnostic applications.
- Current methods for generating non-standard peptide libraries include chemical/enzymatic modification or direct ribosomal synthesis.
Purpose of the Study:
- To discuss the generation of genetically encoded non-standard peptide libraries.
- To review recent applications of these libraries in selecting functional non-standard peptides.
Main Methods:
- Genetic code expansion: incorporating non-proteinogenic amino acids via nonsense or 4-base codons.
- Genetic code reprogramming: replacing proteinogenic amino acids with non-proteinogenic ones in the genetic code.
- Ribosomal synthesis of non-standard peptide libraries.
Main Results:
- Genetically encoded non-standard peptide libraries can be generated using expansion or reprogramming strategies.
- These libraries facilitate the selection of functional non-standard peptides.
- Diverse non-standard peptide libraries can be synthesized directly via ribosomes.
Conclusions:
- Genetic encoding offers a powerful approach for creating diverse non-standard peptide libraries.
- These libraries are instrumental in discovering novel peptides with tailored biological functions.
- Advancements in genetic code manipulation expand the toolkit for peptide engineering.
