A systematic study of the solid state and solution phase conformational preferences of beta-peptides derived from transpentacin

Elin Abraham, Callum W. Bailey, Timothy D. W. Claridge, Stephen G. Davies, Kenneth B. Ling, Barbara Odell, Thomas L. Rees, Paul M. Roberts, Angela J. Russell, Andrew D. Smith, Lorna J. Smith, Helen R. Storr, Miles J. Sweet, Amber L. Thompson, James E. Thomson, George E. Tranter, David J. Watkin, Andrew David Smith

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)

Abstract

The solid state and solution phase conformational preferences of a homologous series of beta-peptides derived from (S,S)-2-aminocyclopentanecarboxylic acid (transpentacin) have been investigated using a variety of spectroscopic and crystallographic techniques. These studies indicate that the hexamer and pentamer persist as a 12-helix in both the solid state and solution phase. Although the conformational traits of a 12-helix are exhibited by oligomers with as few as three residues in the solid state, in solution the trimer exists as an equilibrium of many alternative conformers whilst the tetramer has been shown to predominantly exist in either a 12-helix or a turn-type conformation. (C) 2010 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)1797-1815
Number of pages19
JournalTetrahedron: Asymmetry
Volume21
Issue number13-14
DOIs
Publication statusPublished - 14 Jul 2010

Keywords

  • 2-AMINOCYCLOPENTANECARBOXYLIC ACID-DERIVATIVES
  • HELICAL SECONDARY STRUCTURE
  • DE-NOVO DESIGN
  • ASYMMETRIC-SYNTHESIS
  • AQUEOUS-SOLUTION
  • FOLDAMERS
  • RESIDUES
  • (-)-(1R,2S)-CISPENTACIN
  • HEXAPEPTIDE
  • RESOLUTION

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