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. 2002 Jun;8(6):241-52.
doi: 10.1002/psc.392.

Peptoid residues and beta-turn formation

Mario Rainaldi  1 , Vitrorio Moretto, Marco Crisma, Evaristo Peggion, Stefano Mammi, Claudio Toniolo, Giorgio Cavicchioni
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Peptoid residues and beta-turn formation

Mario Rainaldi et al. J Pept Sci. 2002 Jun.

Abstract

A set of terminally protected tripeptoids containing a residue of either N-methylglycine or N-isobutylglycine in position i + 1/i + 2 were synthesized and tested for intramolecularly H-bonded beta-turn formation. By exploiting FT-IR absorption and 1H NMR techniques, their folding tendencies were compared with those of a variety of reference peptides. The amount of beta-turn induction and the relative extent of the various types of intramolecularly H-bonded beta-turn conformers were determined in chloroform solution.

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