Regulation of β-1,4-Endoglucanase Synthesis in Thermomonospora fusca
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چکیده
منابع مشابه
Regulation of biosynthesis of individual cellulases in Thermomonospora fusca.
Regulation of the biosynthesis of the six cellulases comprising the cellulolytic system of the thermophilic soil bacterium Thermomonospora fusca ER1 was studied. The levels of the individual enzymes produced on different noninducing and inducing carbon sources were determined. The lowest level of cellulase synthesis (3 nM) was observed with xylose as a carbon source, and the highest level (247 ...
متن کاملCellulases of Thermomonospora fusca and Streptomyces thermodiastaticus.
The cellulases of Streptomyces thermodiastaticus (strain 2Sts) and thermomonospora fusca (strain 190Th) were produced with carboxymethyl-cellulose (CMC) serving as the carbon source during growth. Both cellulases act by random internal hydrolysis of the CMC chain, producing cellobiose, glucose, and intermediate length oligosaccharides. Cellobiase was not detected in culture filtrates produced u...
متن کاملGenetic Recombination and Transformation in Protoplasts of Thermomonospora fusca.
Protoplasts were produced from the thermophilic actinomycete Thermomonospora fusca and were regenerated to 0.1% of the direct count on regeneration agar. Recombination after protoplast fusion was demonstrated with drug-resistant mutants of T. fusca YX. A single thiostrepton-resistant colony was isolated after transformation of T. fusca YX with the streptomycete vector pIJ702, providing the firs...
متن کاملCharacterization of β-Xylosidase and α-L-Arabinofuranosidase Activities From Thermomonospora Fusca BD25
Thermomonospora fusca BD25 produces relatively high levels of activity of β-xylosidase and α-L-arabinofuranosidase. The aim of the work described in this study was to characterize some properties of β-xylosidase and α-L-arabinofuranosidase produced by T. fusca BD25 when growing on oat spelt xylan as the main carbon and energy sources. The substrates p-NPX and p-NPA reacted with β-xylosidase and...
متن کاملCharacterization of Endoxylanase Activity From Thermomonospora Fusca BD25
Thermomonospora fusca BD25 produces relatively high levels of activity of endoxylanases. Only oat spelt xylan, RBB-xylan and birchwood xylan reacted with endoxylanases with the maximum specific activity of 47.65 U mg-1 protein on birchwood xylan. The endoxylanase remained stable up to 70 °C. At 60 °C endoxylanase activity showed stability (92 %) for 16 h, however it showed a half-life of 8 h at...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1987
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.53.6.1352-1357.1987