Method of enhancing enzyme activity

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United States of America Patent

PATENT NO 8557742
APP PUB NO 20110046012A1
SERIAL NO

12935249

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Abstract

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Described are methods and means for enhancing enzyme activity toward insoluble substrates. This is achieved by means of in vitro compartmentalization in which an insoluble microparticle functions both as the enzyme substrate and as a structure for negative selection. Enhanced enzymes expressed from a microparticle-linked polynucleotide library preferentially degrade the microparticle releasing specific gene variants into solution. Gene variants encoding less active enzyme variants remain linked to the microparticle and may be removed through centrifugation, thus enriching the polynucleotide library for more active enzyme variants. These methods may be used to enhance cellulase and ligninase activity toward insoluble cellulosic biomass.

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Patent Owner(s)

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NOVOZYMES A/S2880 BAGSVAERD

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blazej, Robert G San Francisco, US 3 202
Paegel, Brian M Jupiter, US 4 6

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