Conformations of macromolecular sequential polypeptides in solution: 2. Sequential polypeptides containing both d- and l-residues |
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Authors: | HT Storey RC Thompson PM Hardy HN Rydon |
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Affiliation: | Department of Chemistry, University of Exeter, Exeter EX4 4QD, UK |
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Abstract: | The conformations adopted in solution by two series of macromolecular sequential polypeptides containing up to four γ-benzyl-d-glutamyl and one γ-benzyl-l-glutamyl or l-leucyl residue in the repeating unit have been studied by spectroscopic methods (i.r., o.r.d., n.m.r.). The nature of the ordered conformations encountered is discussed; it is suggested that they are a distorted form of the α-helix and special types of cross β-structure. |
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