Abstract
A putative dehalogenase, l-HADST, from the thermophile Sulfolobus tokodaii, was cloned and expressed in Escherichia coli. The recombinant enzyme catalyzes the stereospecific dehalogenation of l-2-haloacids with similar levels of activity as its homolog from mesophiles. l-HAD ST remains fully active after being incubated for 4 h at 70 °C and tolerates extreme pH conditions ranging from 4 to 10. Furthermore, it can be purified conveniently without the usage of any chromatography method. The high expression yield and easy purification procedure make the recombinant dehalogenase an excellent candidate for biotechnological applications.
Original language | English |
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Pages (from-to) | 382-393 |
Number of pages | 12 |
Journal | Applied Biochemistry and Biotechnology |
Volume | 159 |
Issue number | 2 |
DOIs | |
State | Published - Nov 2009 |
Bibliographical note
Funding Information:Acknowledgment This work was supported by the National Institute of Environmental Health Sciences (NIH, grant P42 ES07380). We acknowledge the use of the circular dichroism spectrometer at the Protein Core facility housed in the Department of Molecular and Cellular Biochemistry, University of Kentucky and directed by Dr. David Rodgers.
Keywords
- Extremophile
- L-2 Haloacid dehalogenase
- Recombinant
- Thermostable
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Biochemistry
- Applied Microbiology and Biotechnology
- Molecular Biology