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Construction and characterization of a fusion β-1,3-1,4-glucanase to improve hydrolytic activity and thermostability.
- Source :
- Biotechnology Letters; Nov2011, Vol. 33 Issue 11, p2193-2199, 7p
- Publication Year :
- 2011
-
Abstract
- A new fusion gene ( Bgl- licMB), encoding β-1,3-1,4-glucanase both from Bacillus amyloliquefaciens ( Bgl) and Clostridium thermocellum ( licMB), was constructed via end-to-end fusion and expressed in Escherichia coli to improve hydrolytic activity and thermostability of β-1,3-1,4-glucanase. The results of enzymatic properties showed that the catalytic efficiency (K/K) of the fusion enzyme for oat β-glucan was 2.7 and 20-fold higher than that of the parental Bgl and licMB, respectively, and that the fusion enzyme can retain more than 50% of activity following incubation at 80°C for 30 min, whereas the residual activities of Bgl and licMB were both less than 30%. These properties make this particular β-1,3-1,4-glucanase a good candidate for application in brewing and animal-feed industries. [ABSTRACT FROM AUTHOR]
- Subjects :
- CELLULASE
HYDROLASES
ESCHERICHIA coli
CATALYSTS
GLUCANS
PLANT cell walls
Subjects
Details
- Language :
- English
- ISSN :
- 01415492
- Volume :
- 33
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- Biotechnology Letters
- Publication Type :
- Academic Journal
- Accession number :
- 65923169
- Full Text :
- https://doi.org/10.1007/s10529-011-0676-7