Biocatalysts Based on Peptide and Peptide Conjugate Nanostructures

Area of Science:

• Biocatalysis and Nanotechnology
• Peptide Self-Assembly
• Bioinspired Catalysis

Background:

• Peptides and conjugates self-assemble into nanostructures (fibrils, nanotubes, micelles).
• These nanostructures serve as platforms for functional residues to catalyze reactions.
• Peptide structures can template catalytic sites, mimicking enzymes or using catalytic amino acids like proline and histidine.

Purpose of the Study:

• To review the literature on peptide and peptide conjugate nanostructures in biocatalysis.
• To highlight the use of these structures in catalyzing various organic reactions.
• To discuss the potential of peptide-based catalysts in future developments.

Main Methods:

• Review of existing literature on peptide self-assembly and catalysis.
• Analysis of peptide structures (α-helical, β-sheet, disordered) for catalytic activity.
• Discussion of minimalist design principles for *ab initio* catalyst development.

Main Results:

• Peptide nanostructures effectively catalyze a range of organic reactions, including hydrolysis and coupling reactions (e.g., aldol).
• Minimalist design allows for the creation of catalytic structures mimicking enzyme active sites or presenting catalytic motifs at high density.
• Metal nanoparticle catalysts can be templated by peptide nanostructures, particularly fibrils, enhancing catalytic activity.

Conclusions:

• Peptide nanostructures offer a versatile platform for developing effective bioinspired and biocompatible catalysts.
• Advances in peptide design and synthesis significantly contribute to their potential in biocatalysis.
• The minimalist design approach simplifies the development of novel catalytic structures.