Catalytic peptide/hemin complex from ester-amide exchange reaction mediated by deep eutectic solvents

Area of Science:

• Biochemistry
• Synthetic Chemistry
• Materials Science

Background:

• Peptide functions often arise from self-assembly or cofactor binding.
• The synthetic complexity of functional peptides poses significant challenges.
• Developing accessible methods for functional peptide generation is crucial.

Purpose of the Study:

• To develop a simplified strategy for generating functional peptide libraries.
• To explore the use of deep eutectic solvents in peptide synthesis.
• To investigate the hemin-binding and peroxidase-like activities of synthesized peptides.

Main Methods:

• Utilized ester-amide exchange reactions in deep eutectic solvents.
• Generated peptide libraries from unactivated amino acids.
• Assessed hemin-binding capability and peroxidase-like activity.

Main Results:

• Successfully generated diverse peptide mixtures.
• Demonstrated that these peptide mixtures possess hemin-binding ability.
• Observed significant peroxidase-like activity in the synthesized peptide libraries.

Conclusions:

• Deep eutectic solvents offer a viable medium for synthesizing functional peptides.
• The developed method simplifies the generation of peptides with specific activities.
• This approach provides a new avenue for creating functional peptide-based catalysts.