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Volume 9, Issue 2

Identification of essential genes in Open Access

Abstract

is an intracellular pathogen responsible for causing Q fever in humans, a disease with varied presentations ranging from a mild flu-like sickness to a debilitating illness that can result in endocarditis. The intracellular lifestyle of is unique, residing in an acidic phagolysosome-like compartment within host cells. An understanding of the core molecular biology of will greatly increase our understanding of growth, survival and pathogenesis. We used transposon-directed insertion site sequencing (TraDIS) to reveal Nine Mile Phase II genes fundamental for growth and survival. Screening a transposon library containing >10 000 unique transposon mutants revealed 512 predicted essential genes. Essential routes of synthesis were identified for the mevalonate pathway, as well as peptidoglycan and biotin synthesis. Some essential genes identified (e.g. predicted type IV secretion system effector genes) are typically considered to be associated with virulence, a caveat concerning the axenic media used in the study. Investigation into the conservation of the essential genes identified revealed that 78 % are conserved across all strains sequenced to date, which probably play critical functions. This is the first report of a whole genome transposon screen in that has been undertaken for the identification of essential genes.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Coxiella burnetii , TraDIS and transposon sequencing
Funding
This study was supported by the:
  • Defence Science and Technology Laboratory (Award DSTLX-1000123071)
    • Principle Award Recipient: RichardTitball
© 2023 Crown copyright
  • This information is licensed under the Open Government Licence 3.0. This is an open-access article distributed under the terms of the Creative Commons Attribution License. This article was made open access via a Publish and Read agreement between the Microbiology Society and the corresponding author’s institution.
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2024-12-02
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Identification of essential genes in Coxiella burnetii
M Gen 9, 000944 (2023); https://doi.org/10.1099/mgen.0.000944
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