期刊
PROTEIN ENGINEERING DESIGN & SELECTION
卷 36, 期 -, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/protein/gzad002
关键词
biorefining; cellulase; lignocellulose; processivity; thermostability
Lignocellulosic biomass is a valuable renewable resource for energy, chemicals, and materials. Efficient enzymatic depolymerization of cellulose to glucose is essential for its economically viable utilization. This review focuses on the engineering of cellulases to improve their efficiency, stability, and cost-effectiveness. The review also provides an overview of recent advancements and notable studies in cellulase engineering.
Lignocellulosic biomass is a renewable source of energy, chemicals and materials. Many applications of this resource require the depolymerization of one or more of its polymeric constituents. Efficient enzymatic depolymerization of cellulose to glucose by cellulases and accessory enzymes such as lytic polysaccharide monooxygenases is a prerequisite for economically viable exploitation of this biomass. Microbes produce a remarkably diverse range of cellulases, which consist of glycoside hydrolase (GH) catalytic domains and, although not in all cases, substrate-binding carbohydrate-binding modules (CBMs). As enzymes are a considerable cost factor, there is great interest in finding or engineering improved and robust cellulases, with higher activity and stability, easy expression, and minimal product inhibition. This review addresses relevant engineering targets for cellulases, discusses a few notable cellulase engineering studies of the past decades and provides an overview of recent work in the field.
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