DNA capturing machinery through spore-displayed proteins

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DNA capturing machinery through spore-displayed proteins
T J Park; S J Lee; Jae Gu Pan; Heung Chae Jung; J Y Park; J P Park; S Y Lee
Bibliographic Citation
Letters in Applied Microbiology, vol. 53, no. 4, pp. 445-451
Publication Year
Aims: The purpose of this study was to develop a general method for the facile development of a new DNA biosensor which utilizes streptavidin-displayed spores as a molecular machinery. Methods and Results: Fluorescence spectroscopy was used as a monitoring tool for the streptavidin displayed on the surface of Bacillus thuringiensis spores and as a diagnosis method for DNA detection. As a proof-of-concept, four pathogenic bacteria including Pseudomonas aeruginosa, Acinetobacter baumannii, Escherichia coli and Klebsiella pneumonia were used for the detection of pathogenic species. In addition, a set of mutant variants of Wilson's disease were also used for the detection of single nucleotide polymorphism (SNP) in this system. Conclusions: This strategy, utilizing streptavidin-displayed spores, is capable of capturing DNA targets for the detection of pathogenic bacteria and for mutation analysis in Wilson's disease. Significance and Impact of the Study: This approach could be useful as a simple platform for developing sensitive spore-based biosensors for any desired DNA targets in diagnostic applications. ⓒ 2011 The Authors. Letters in Applied Microbiology
Pathogenic bacteriaSingle nucleotide polymorphism detectionSpore displayStreptavidinWilson's disease
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Division of Bio Technology Innovation > SME Support Center > 1. Journal Articles
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