Supramolecular peptide nanotubes as artificial enzymes for catalysing ester hydrolysis. Song, Q., Cheng, Z., & Perrier, S. POLYMER CHEMISTRY, 14(41):4712–4718, October, 2023. doi abstract bibtex Peptide-based artificial enzymes are attracting significant interest because of their remarkable resemblance in both composition and structure to native enzymes. Herein, we report the construction of histidine-containing cyclic peptide-based supramolecular polymeric nanotubes to function as artificial enzymes for ester hydrolysis. The optimized catalyst shows a ca. 70-fold increase in reaction rate compared to the un-catalysed reaction when using 4-nitrophenyl acetate as a model substrate. Furthermore, the amphiphilic nature of the supramolecular catalysts enables an enhanced catalytic activity towards hydrophobic substrates. By incorporating an internal hydrophobic region within the self-assembled polymeric nanotube, we achieve a 55.4-fold acceleration in hydrolysis rate towards a more hydrophobic substrate, 4-nitrophenyl butyrate. This study introduces supramolecular peptide nanotubes as an innovative class of supramolecular scaffolds for fabricating artificial enzymes with better structural and chemical stability, catalysing not only ester hydrolysis, but also a broader spectrum of catalytic reactions.Histidine-containing cyclic peptide-based supramolecular peptide nanotubes were constructed to function as artificial enzymes for catalysing ester hydrolysis.
@article{song_supramolecular_2023,
title = {Supramolecular peptide nanotubes as artificial enzymes for catalysing ester hydrolysis},
volume = {14},
issn = {1759-9954},
doi = {10.1039/d3py00993a},
abstract = {Peptide-based artificial enzymes are attracting significant interest because of their remarkable resemblance in both composition and structure to native enzymes. Herein, we report the construction of histidine-containing cyclic peptide-based supramolecular polymeric nanotubes to function as artificial enzymes for ester hydrolysis. The optimized catalyst shows a ca. 70-fold increase in reaction rate compared to the un-catalysed reaction when using 4-nitrophenyl acetate as a model substrate. Furthermore, the amphiphilic nature of the supramolecular catalysts enables an enhanced catalytic activity towards hydrophobic substrates. By incorporating an internal hydrophobic region within the self-assembled polymeric nanotube, we achieve a 55.4-fold acceleration in hydrolysis rate towards a more hydrophobic substrate, 4-nitrophenyl butyrate. This study introduces supramolecular peptide nanotubes as an innovative class of supramolecular scaffolds for fabricating artificial enzymes with better structural and chemical stability, catalysing not only ester hydrolysis, but also a broader spectrum of catalytic reactions.Histidine-containing cyclic peptide-based supramolecular peptide nanotubes were constructed to function as artificial enzymes for catalysing ester hydrolysis.},
number = {41},
urldate = {2023-11-29},
journal = {POLYMER CHEMISTRY},
author = {Song, Qiao and Cheng, Zihe and Perrier, Sebastien},
month = oct,
year = {2023},
pages = {4712--4718},
}
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