Conformational Study of the Diastereomeric Pairs in Poly(lysine)−Pectate Complexes

The complex formation in aqueous solution between the polyelectrolytes poly(lysine) and pectate was studied focusing on the conformational changes of the polysaccharidic moiety. The findings suggest that the pectate adopts a superhelical conformation around the α helix of the poly(l-lysine). A thres...

Full description

Saved in:
Bibliographic Details
Published in:Macromolecules 2001-11, Vol.34 (23), p.8179-8186
Main Authors: Paradossi, Gaio, Chiessi, Ester, Malovìkovà, Anna
Format: Article
Language:English
Subjects:
Aminoacid polymers
Applied sciences
Exact sciences and technology
Physicochemistry of polymers
Synthetic biopolymers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The complex formation in aqueous solution between the polyelectrolytes poly(lysine) and pectate was studied focusing on the conformational changes of the polysaccharidic moiety. The findings suggest that the pectate adopts a superhelical conformation around the α helix of the poly(l-lysine). A threshold value of the degree of polymerization of the pectate chain enabling the transition of the peptide was determined by chromatographic and circular dichroism methods. Conformational analysis results are in agreement with the experimental findings and support the superhelical topology of the polyelectrolyte poly(l-lysine)−pectate complex.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma010418x