alexa Identification of in vivo essential genes from Pseudomonas aeruginosa by PCR-based signature-tagged mutagenesis.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Computer Science & Systems Biology

Author(s): Lehoux DE, Sanschagrin F, Levesque RC

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Abstract We adapted PCR-based signature-tagged mutagenesis (STM) to Pseudomonas aeruginosa. A collection of 1056 mutants was screened in a chronic lung infection rat model. Thirteen mutants were confirmed to be attenuated. Analysis revealed that these STM mutants represented transposon insertions into eight genes previously described in databases, three genes encoding proteins sharing identity with hypothetical proteins and two genes that shared no significant identity with sequences in databases. Five strains mutated in genes involved in protein degradation, stress tolerance, cation transport, ABC transporter, and an unknown protein were shown to be highly attenuated when tested individually in the rat chronic lung infection model.
This article was published in FEMS Microbiol Lett and referenced in Journal of Computer Science & Systems Biology

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