Reassessment of the random coil conformation: vibrational CD study of proline oligopeptides and related polypeptides.

@article{Dukor1991ReassessmentOT,
  title={Reassessment of the random coil conformation: vibrational CD study of proline oligopeptides and related polypeptides.},
  author={Rina K. Dukor and Timothy A. Keiderling},
  journal={Biopolymers},
  year={1991},
  volume={31 14},
  pages={1747-61}
}
The "random coil" conformational problem is examined by comparison of vibrational CD (VCD) spectra of various polypeptide model systems with that of proline oligomers [(Pro)n] and poly(L-proline). VCD, ir and uv CD spectra of blocked L-proline oligopeptides [(Pro)n, n = 2-12] in different solvents are reported and compared to the spectra of poly(L-proline) II, poly(L-glutamic acid), and unblocked proline oligomers. Based on the chain-length dependence of the VCD and electronic CD (ECD) spectra… CONTINUE READING
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