Journal
BIOMACROMOLECULES
Volume 22, Issue 5, Pages 1835-1855Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.biomac.1c00240
Keywords
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Funding
- EPSRC Platform grant [EP/L020599/1]
- EPSRC [EP/L020599/1] Funding Source: UKRI
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Peptides and their conjugates can self-assemble into nanostructures for catalyzing various reactions, with simpler design rules allowing them to mimic natural enzyme structures effectively.
Peptides and their conjugates (to lipids, bulky N-terminals, or other groups) can self-assemble into nanostructures such as fibrils, nanotubes, coiled coil bundles, and micelles, and these can be used as platforms to present functional residues in order to catalyze a diversity of reactions. Peptide structures can be used to template catalytic sites inspired by those present in natural enzymes as well as simpler constructs using individual catalytic amino acids, especially proline and histidine. The literature on the use of peptide (and peptide conjugate) alpha-helical and beta-sheet structures as well as turn or disordered peptides in the biocatalysis of a range of organic reactions including hydrolysis and a variety of coupling reactions (e.g., aldol reactions) is reviewed. The simpler design rules for peptide structures compared to those of folded proteins permit ready ab initio design (minimalist approach) of effective catalytic structures that mimic the binding pockets of natural enzymes or which simply present catalytic motifs at high density on nanostructure scaffolds. Research on these topics is summarized, along with a discussion of metal nanoparticle catalysts templated by peptide nanostructures, especially fibrils. Research showing the high activities of different classes of peptides in catalyzing many reactions is highlighted. Advances in peptide design and synthesis methods mean they hold great potential for future developments of effective bioinspired and biocompatible catalysts.
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