Affinity Electrophoresis for Analysis of Catalytic Module-Carbohydrate Interactions

  • Darrell CockburnEmail author
  • Casper Wilkens
  • Birte Svensson
Part of the Methods in Molecular Biology book series (MIMB, volume 1588)


Affinity electrophoresis has long been used to study the interaction between proteins and large soluble ligands. The technique has been found to have great utility for the examination of polysaccharide binding by proteins, particularly carbohydrate binding modules (CBMs). In recent years, carbohydrate surface binding sites of proteins mostly enzymes have also been investigated by this method. Here, we describe a protocol for identifying binding interactions between enzyme catalytic modules and a variety of carbohydrate ligands.

Key words

Affinity electrophoresis Polyacrylamide gel electrophoresis Polysaccharide Surface binding site Carbohydrate binding module Dissociation constant 



This work was supported by a grant to B.S. from the Danish Council for Independent Research|Natural Sciences.


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Copyright information

© Springer Science+Business Media LLC 2017

Authors and Affiliations

  • Darrell Cockburn
    • 1
    Email author
  • Casper Wilkens
    • 2
  • Birte Svensson
    • 3
  1. 1.Department of Microbiology and ImmunologyUniversity of MichiganAnn ArborUSA
  2. 2.Department of Chemical and Biochemical EngineeringTechnical University of DenmarkKongens LyngbyDenmark
  3. 3.Enzyme and Protein Chemistry, Department of Systems BiologyTechnical University of DenmarkKongens LyngbyDenmark

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