منابع مشابه
Comparative Analysis of Β- Glucosidases Thermostability: Differences in Amino Acids Composition and Distribution among Mesostable and Thermostable Β- Glucosidases
Out of various industrial enzymes, thermostable βglucosidases are of great interest, due to their utility in conversion of lingocellulosic material into bioethanol. Determination of the factors responsible for thermostability in β-glucosidases by sequence and structure comparison will be useful in identification, isolation and design of novel thermostable βglucosidases. In the present study the...
متن کاملComparative kinetic analysis of two fungal β-glucosidases
BACKGROUND The enzymatic hydrolysis of cellulose is still considered as one of the main limiting steps of the biological production of biofuels from lignocellulosic biomass. It is a complex multistep process, and various kinetic models have been proposed. The cellulase enzymatic cocktail secreted by Trichoderma reesei has been intensively investigated. beta-glucosidases are one of a number of c...
متن کاملWhen substrate inhibits and inhibitor activates: implications of β-glucosidases
BACKGROUND β-glucosidases (BGs) catalyze the hydrolysis of β-glycosidic bonds in glucose derivatives. They constitute an important group of enzymes with biotechnological interest like supporting cellulases in degradation of lignocellulose to fermentable sugars. In the latter context, the glucose tolerant BGs are of particular interest. These BGs often show peculiar kinetics, including inhibitor...
متن کاملCharacteristics and potential use of β-glucosidases from Zygomycetes
β-Glucosidases (β-D-glucoside glucohydrolases) play important role in nature, including the degradation of cellulosic biomass by fungi and bacteria, breakdown of glycolipids in mammalian lysosomes, and the cleavage of glycosylated flavonoids in plants. These enzymes have broad substrate specificity, and are used in a range of biotechnological processes. The most intensively studied area of thei...
متن کاملStructural basis for glucose tolerance in GH1 β-glucosidases.
Product inhibition of β-glucosidases (BGs) by glucose is considered to be a limiting step in enzymatic technologies for plant-biomass saccharification. Remarkably, some β-glucosidases belonging to the GH1 family exhibit unusual properties, being tolerant to, or even stimulated by, high glucose concentrations. However, the structural basis for the glucose tolerance and stimulation of BGs is stil...
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ژورنال
عنوان ژورنال: Letters in Applied Microbiology
سال: 1990
ISSN: 0266-8254,1472-765X
DOI: 10.1111/j.1472-765x.1990.tb00153.x