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Journal of Bacteriology, April 2001, p. 2696-2699, Vol. 183, No. 8
0021-9193/01/$04.00+0 DOI: 10.1128/JB.183.8.2696-2699.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Development of a New Integration Site within the
Bacillus subtilis Chromosome and Construction of
Compatible Expression Cassettes
Barbara
Härtl,
Wolfgang
Wehrl,
Thomas
Wiegert,
Georg
Homuth, and
Wolfgang
Schumann*
Institute of Genetics, University of
Bayreuth, D-95440 Bayreuth, Germany
Received 16 October 2000/Accepted 8 January 2001
The Bacillus subtilis lacA gene, coding for
-galactosidase, has been explored as a new site able to accept DNA
sequences from nonreplicating delivery vectors. Two such delivery
expression vectors have been constructed and shown to be useful in
obtaining regulated expression from the chromosomal location. In
another experiment, it was shown that the integration of a regulatory gene at the lacA locus was able to control the
expression of a transcriptional fusion at the amyE
locus. These experiments demonstrate that both integration sites can be
used simultaneously to obtain regulated expression of desired genes.
*
Corresponding author. Mailing address: Institute of
Genetics, University of Bayreuth, D-95440 Bayreuth, Germany. Phone: 49 (921) 552708. Fax: 49 (921) 552710. E-mail:
wolfgang.schumann{at}uni-bayreuth.de.
Journal of Bacteriology, April 2001, p. 2696-2699, Vol. 183, No. 8
0021-9193/01/$04.00+0 DOI: 10.1128/JB.183.8.2696-2699.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
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