Journal
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
Volume 76, Issue 22, Pages 7407-7412Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.01389-10
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- NIAID, NIH
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Regulation of gene expression is critical for the ability of Borrelia burgdorferi to adapt to different environments during its natural infectious cycle. Reporter genes have been used successfully to study gene regulation in multiple organisms. We have introduced a lacZ gene into B. burgdorferi, and we show that B. burgdorferi produces a protein with detectable beta-galactosidase activity in both liquid and solid media when lacZ is expressed from a constitutive promoter. Furthermore, when lacZ is expressed from the ospC promoter, beta-galactosidase activity is detected only in B. burgdorferi clones that express ospC, and it accurately monitors endogenous gene expression. The addition of lacZ to the repertoire of genetic tools available for use in B. burgdorferi should contribute to a better understanding of how B. burgdorferi gene expression is regulated during the infectious cycle.
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