Document Detail


Determination of cellulase colocalization on cellulose fiber with quantitative FRET measured by acceptor photobleaching and spectrally unmixing fluorescence microscopy.
MedLine Citation:
PMID:  22311108     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The determination of cellulase distribution on the surface of cellulose fiber is an important parameter to understand when determining the interaction between cellulase and cellulose and/or the cooperation of different types of cellulases during the enzymatic hydrolysis of cellulose. In this communication, a strategy is presented to quantitatively determine the cellulase colocalization using the fluorescence resonance energy transfer (FRET) methodology, which is based on acceptor photobleaching and spectrally unmixing fluorescence microscopy. FRET monitoring of cellulase colocalization was achieved by labeling cellulases with an appropriate pair of FRET dyes and by adopting an appropriate FRET model. We describe here that the adapted acceptor photobleaching FRET method can be successfully used to quantify cellulase colocalization regarding their binding to a cellulose fiber at a resolution <10 nm. This developed quantitative FRET method is promising for further studying the interactions between cellulase and cellulose and between different types of cellulases.
Authors:
Liqun Wang; Yiqing Wang; Arthur J Ragauskas
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-7
Journal Detail:
Title:  The Analyst     Volume:  -     ISSN:  1364-5528     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372652     Medline TA:  Analyst     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
BioEnergy Science Center, Institute of Paper Science and Technology, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, USA. Arthur.Ragauskas@ chemistry.gatech.edu.
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