Biotechnology Letters

, Volume 25, Issue 7, pp 553–558 | Cite as

Use of a fluorescence labelled, carbohydrate-binding module from Phanerochaete chrysosporium Cel7D for studying wood cell wall ultrastructure



The α-amino group of the carbohydrate-binding module (CBM) from Phanerochaete chrysosporium cellulase Cel7D was covalently labelled with fluorescein isothiocyanate. The fluorescein-labelled CBM was characterised regarding substrate binding, showing specificity only to cellulose and not to mannan and xylan. Conjugation of fluorescein isothiocyanate to CBM did not affect its binding to cellulose. The labelled CBM was successfully used as a probe for detecting cellulose in lignocellulose material such as never dried spruce and birch wood as well as pulp fibres.

carbohydrate-binding module cellulase fluorescence Phanerochaete chrysosporium pulp fibres 


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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Lars Hildén
    • 1
    • 2
  • Geoffrey Daniel
    • 1
  • Gunnar Johansson
    • 2
  1. 1.WURC, Department of Wood ScienceSwedish University of Agricultural SciencesUppsalaSweden
  2. 2.Department of BiochemistryUppsala University, BMCUppsalaSweden

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