Estimating the relative populations of 3(10)-helix and alpha-helix in Ala-rich peptides: a hydrogen exchange and high field NMR study.

@article{Millhauser1997EstimatingTR,
  title={Estimating the relative populations of 3(10)-helix and alpha-helix in Ala-rich peptides: a hydrogen exchange and high field NMR study.},
  author={Glenn L. Millhauser and Christopher J. Stenland and Peter C Hanson and Kimberly A Bolin and F J van de Ven},
  journal={Journal of molecular biology},
  year={1997},
  volume={267 4},
  pages={
          963-74
        }
}

• Glenn L. Millhauser, Christopher J. Stenland, +2 authors F J van de Ven
• Published 1997 in Journal of molecular biology

Recent experimental and theoretical work suggests that alanine-rich peptides fold as a mixture of 3(10)-helix (i --> i + 3 hydrogen bonding) and alpha-helix (i --> i + 4 hydrogen bonding). In order to assess the relative proportions of the two conformers, NMR studies were performed on the 16 residue sequences: Ac-AAAAKAAAAKAAAAKA-NH2 (3K) and Ac-AMAAKAWAAKAAAARA-NH2 (MW). Hydrogen/deuterium-exchange kinetics measured for the first three amide protons of the 3K peptide indicate that the NH of… CONTINUE READING

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