NMR Structure in methanol of a β-hexapeptide with a disulfide clampElectronic supplementary information (ESI) available: NMR spectroscopy of hexapeptide 1 and heptapeptide 3. See http://www.rsc.org/suppdata/cc/b0/b007503p/
Abstract
A disulfide bridge between two cysteine side chains on amino acid residue 2 and 5 of a β-hexapeptide fixes the 314-helical structure, as shown by a 2D-NMR investigation.