Abstract
The co-immobilized enzymes and cofactors onto porous microparticles work as self-sufficient heterogeneous biocatalysts whose catalytic activity can be easily monitored by means of the cofactors autofluorescence. The reduction step of some cofactors as NAD+ and FAD+ to NADH and FADH2, respectively, involves an increase of its autofluorescence. This phenomenon is harnessed to image and analyze the enzymatic reactions catalyzed by cofactor-dependent enzymes at real time and single-particle level during the operational process. Due to the universality and highly accessibility of fluorescence microscopy, the strategy described here allows a straightforward and more accurate analysis at micro-scale of heterogeneous biocatalysts. These studies promote and support the rational design and optimization of biocatalysts toward highly efficient heterogeneous biocatalytic reactions.
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Acknowledgment
The author wish to thank the supporting of COST action CM1303-Systems Biocatalysis and the Spanish MINECO (BIO2014-61838-EXP).
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BenÃtez-Mateos, A.I. (2020). Single-Particle Kinetics of Immobilized Enzymes by Harnessing the Autofluorescence of Co-Immobilized Cofactors. In: Guisan, J., Bolivar, J., López-Gallego, F., Rocha-MartÃn, J. (eds) Immobilization of Enzymes and Cells. Methods in Molecular Biology, vol 2100. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-0215-7_20
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DOI: https://doi.org/10.1007/978-1-0716-0215-7_20
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