Abstract
Peptides containing variations of the β-amyloid hydrophobic core and five-membered sulfamidates derived from β-amino acid α-methylisoserine have been synthesized and fully characterized in the gas phase, solid state and in aqueous solution by a combination of experimental and computational techniques. The cyclic sulfamidate group effectively locks the secondary structure at the N-terminus of such hybrid peptides imposing a conformational restriction and stabilizing non-extended structures. This conformational bias, which is maintained in the gas phase, solid state and aqueous solution, is shown to be resistant to structure templating through assays of in vitro β-amyloid aggregation, acting as β-sheet breaker peptides with moderate activity.
Original language | English |
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Article number | e202202913 |
Journal | Chemistry - A European Journal |
Volume | 29 |
Issue number | 9 |
DOIs | |
Publication status | Published - Feb 10 2023 |
Externally published | Yes |
Keywords
- hybrid peptides
- sulfamidates
- β-amino acids
- β-amyloid
- β-sheet breaker peptides
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry