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Identification of genes involved in exoprotein release using a high-throughput exoproteome screening assay in Yersinia entomophaga
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Identification of genes involved in exoprotein release using a high-throughput exoproteome screening assay in Yersinia entomophaga
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Identification of genes involved in exoprotein release using a high-throughput exoproteome screening assay in Yersinia entomophaga
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Journal Article
Identification of genes involved in exoprotein release using a high-throughput exoproteome screening assay in Yersinia entomophaga
2022
Overview
Bacterial protein secretion is crucial to the maintenance of viability and pathogenicity. Although many bacterial secretion systems have been identified, the underlying mechanisms regulating their expression are less well explored. Yersinia entomophaga MH96, an entomopathogenic bacterium, releases an abundance of proteins including the Yen-Tc into the growth medium when cultured in Luria Bertani broth at ≤ 25˚C. Through the development of a high-throughput exoproteome screening assay (HESA), genes involved in MH96 exoprotein production were identified. Of 4,080 screened transposon mutants, 34 mutants exhibited a decreased exoprotein release, and one mutation located in the intergenic region of the Yen-Tc operon displayed an elevated exoprotein release relative to the wild-type strain MH96. DNA sequencing revealed several transposon insertions clustered in gene regions associated with lipopolysaccharide (LPSI and LPSII), and N-acyl-homoserine lactone synthesis (quorum sensing). Twelve transposon insertions were located within transcriptional regulators or intergenic regions. The HESA will have broad applicability for identifying genes associated with exoproteome production in a range of microorganisms.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
