Conformation of the exopolysaccharide of Burkholderia cepacia predicted with molecular mechanics (MM3) using genetic algorithm search.
Artikel i vetenskaplig tidskrift, 2005

We present a computational conformational analysis of the exopolysaccharide of Burkholderia cepacia, which is believed to play a role in colonization and persistence of B. cepacia in the lungs of cystic fibrosis patients. The repeating unit of the exopolysaccharide is a heptasaccharide with three branches, which cause significant steric restraints. Conformational searches using glygal, an in-house developed software using genetic algorithm search methods, were performed on fragments as well as on the complete repeating unit with wrap-over residues. The force field used for the calculations was MM3(96). The search showed four favored conformations for an isolated repeating unit. However, for a sequence of several repeating units, the calculations indicate a single, well-defined linear conformation.

Burkholderia polysaccharide conformation genetic algorithm molecular mechanics

Författare

F. Strino

Göteborgs universitet

Avi Nahmany

Göteborgs universitet

Jimmy Rosen

Göteborgs universitet

Graham Kemp

Chalmers, Data- och informationsteknik, Datavetenskap

Isabel Sá-correia

Instituto Superior Tecnico

Per-Georg Nyholm

Göteborgs universitet

Carbohydrate Research

0008-6215 (ISSN)

Vol. 340 5 1019-1024

Ämneskategorier

Annan medicinsk grundvetenskap

DOI

10.1016/j.carres.2004.12.031