Total Synthesis and Characterization of Bioactive Peptides
Summary
Total synthesis of bioactive peptides encompasses the complete chemical construction of peptide sequences, often incorporating non-proteinogenic residues, macrocycles or post-translational modifications. This endeavour not only provides definitive structural confirmation but also enables systematic exploration of structure–activity relationships. Key advances include the development of robust coupling reagents, automated synthesizers and chemoenzymatic hybrid methods that streamline assembly of long or highly modified chains. Macrocyclisation approaches such as ring-closing metathesis and macrolactonisation have emerged to forge conformationally constrained scaffolds, enhancing metabolic stability and target affinity. Characterisation relies on high-resolution mass spectrometry, multidimensional nuclear magnetic resonance spectroscopy and chromatographic separation to verify sequence, stereochemistry and purity. Biological evaluation spans antimicrobial assays, cytotoxicity screens and receptor-binding studies, guiding optimisation of potency and selectivity. Collectively, these methodologies underpin discovery of novel peptide therapeutics, ranging from anticancer agents and immunomodulators to enzyme inhibitors, with broad implications for global health and chemical biology.
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Total Synthesis and Characterization of Bioactive Peptides publication trend
The graph below shows the total number of articles in total synthesis and characterization of bioactive peptides across all publications each year (not limited to Nature Index journals).
Technical terms
Total synthesis: Complete chemical construction of a target peptide from simple precursors.
Solid-phase peptide synthesis: Iterative assembly of a peptide chain on an insoluble support using protected amino acids.
Macrocyclisation: Intramolecular reaction that closes a linear peptide into a cyclic structure to enhance stability and bioactivity.
Dehydroamino acid: Non-canonical residue containing a carbon–carbon double bond, often used to modulate conformation and reactivity.
Convergent synthesis: Strategy in which key fragments are independently assembled and then joined to improve overall efficiency.
Depsipeptide: Peptide analogue in which one or more amide bonds are replaced by ester linkages, frequently found in natural products.
References
- Synthesis and biological evaluation of vioprolide B and its dehydrobutyrine-glycine analogue. Chemical Communications (2024).
- Solid-phase total synthesis and structural confirmation of antimicrobial longicatenamide A. Beilstein Journal of Organic Chemistry (2022).
- Synthesis and evaluation of potent yaku'amide A analogs. Chemical Science (2022).
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