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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
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Rapid flow-based peptide synthesis
Mark D Simon1, Patrick L Heider, Andrea Adamo
1Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA).
Chembiochem : a European Journal of Chemical Biology
|March 12, 2014
Summary
A novel flow-based solid-phase peptide synthesis method accelerates amino acid incorporation to under 2 minutes per residue. This automated technique ensures high-quality peptide synthesis comparable to traditional methods.
Area of Science:
- Biochemistry
- Organic Chemistry
- Chemical Engineering
Background:
- Solid-phase peptide synthesis (SPPS) is a cornerstone of peptide and protein research.
- Traditional SPPS methods can be time-consuming and may face challenges in reagent delivery and heating.
- Optimizing SPPS for speed and efficiency is crucial for advancing peptide-based therapeutics and diagnostics.
Purpose of the Study:
- To develop and present a flow-based solid-phase peptide synthesis (SPPS) methodology.
- To achieve rapid incorporation of amino acid residues under automated and manual control.
- To demonstrate the method's applicability and reliability in synthesizing complex peptides and proteins.
Main Methods:
- A flow-through system utilizing a heat exchanger and a low-volume, low-backpressure reaction vessel.
- Continuous delivery of heated solvents and reagents at high flow rates to the solid support.
- Integration of a UV detector for real-time process monitoring.
- Application of the method to the total synthesis of a small protein and numerous peptides.
Main Results:
- Amino acid residue incorporation achieved every 1.8 minutes (automatic) or 3 minutes (manual).
- Maximal reagent concentration and rapid reagent exchange maintained within the reaction vessel.
- Elimination of the need for rapid reagent heating post-addition.
- High-quality synthesized peptides and proteins comparable to traditional batch methods.
- Readily purifiable products via reversed-phase high-performance liquid chromatography (RP-HPLC).
Conclusions:
- The developed flow-based SPPS method offers significant advantages in speed and efficiency.
- The methodology is robust and broadly applicable for synthesizing diverse peptides and proteins.
- This approach provides a reliable alternative to conventional SPPS, yielding high-purity products.
