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Computer-assisted structural analysis of oligosaccharides using CASPER.

P E Jansson1, L Kenne, G Widmalm

  • 1Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, Sweden.

Analytical Biochemistry
|November 15, 1991
PubMed
Summary

The CASPER computer program accurately predicts oligosaccharide structures. It uses component, linkage, and NMR data for linear or branched sugars.

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Area of Science:

  • Carbohydrate Chemistry
  • Computational Chemistry
  • Structural Biology

Background:

  • Oligosaccharide structural determination is crucial for understanding biological functions.
  • Existing computational methods may have limitations in accuracy or scope.
  • Nuclear Magnetic Resonance (NMR) spectroscopy provides key structural data.

Purpose of the Study:

  • To evaluate the efficacy of the CASPER computer program for oligosaccharide structural analysis.
  • To assess CASPER's ability to predict structures of diverse oligosaccharides.

Main Methods:

  • CASPER program utilized for structural analysis.
  • Input data included component analysis, linkage positions, and NMR chemical shifts.
  • Tested on five linear and branched tri- to hexasaccharides (reducing and methyl glycosides).

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Main Results:

  • CASPER successfully predicted the correct structures for all tested oligosaccharides.
  • The program demonstrated accuracy with varying degrees of branching and glycosidic linkages.
  • Performance was consistent across both reducing and methyl glycoside forms.

Conclusions:

  • The CASPER program is a reliable tool for oligosaccharide structure elucidation.
  • CASPER effectively integrates diverse structural information for accurate predictions.
  • This computational approach aids in advancing carbohydrate structural analysis.