Proc Natl Acad Sci U S A. 1992 Jul 15;89(14):6338-42.

Fast sequencing of oligosaccharides: the reagent-array analysis method.

Edge CJ, Rademacher TW, Wormald MR, Parekh RB, Butters TD, Wing DR, Dwek RA.

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Department of Biochemistry, University of Oxford, United Kingdom.

Abstract

A method of oligosaccharide analysis involving controlled fragmentation resulting from enzymatic digestion is presented. The principle involves generating a set of fragments from the original oligosaccharides, characterizing them in terms of their hydrodynamic volumes, determining their molar proportions, and identifying the oligosaccharides by comparison with a computer-generated data base. Experimentally, this technique involves incubation of aliquots of a sample with a set of defined mixtures of exoglycosidases followed by pooling of the products and a single analysis on the product pool. This method has several practical advantages over current techniques, including speed and the ability to use smaller amounts of starting material. The detection of the intensity-versus-hydrodynamic volume profile is limited only by the specific activity of the labeling method. The ability to perform the enzyme digestions is limited by the individual Km values of the enzymes.

PMID:: 1631129; [PubMed - indexed for MEDLINE]
PMCID:: PMC49496

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Research Support, Non-U.S. Gov't

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Oligosaccharides

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