Open AccessOptimisation of the BgaB reporter system: determination of transcriptional regulation of stress responsive genes in Bacillus subtilis
Author(s) -
Schrögel Oliver,
Allmansberger Rudolf
Publication year - 1997
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1997.tb10488.x
Subject(s) - bacillus subtilis , gene , bacillaceae , reporter gene , fight or flight response , lac operon , biology , gene expression , chemistry , microbiology and biotechnology , genetics , bacteria
We constructed and characterised a new system to determine transcriptional regulation of genes in Bacillus subtilis . The system is based on the B. stearothermophilus ‐derived β‐galactosidase BgaB. In contrast to the systems described up to now the BgaB protein is not degraded in response to environmental stresses. We optimised buffer conditions for BgaB assays and developed a protocol which allows measurement of BgaB activity without background problems. To test the system we determined induction of the B. subtilis clpC gene in response to stress. Induction of this gene in response to stress occurred as described.