Cited by 2,544Tuberculosis Research and EpidemiologyBacterial Genetics and BiotechnologyMycobacterium research and diagnosis

Genes required for mycobacterial growth defined by high density mutagenesis

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Sassetti, Christopher M., Boyd, Dana H., Rubin, Eric J.·2003·Molecular Microbiology

Abstract

Summary: Despite over a century of research, tuberculosis remains a leading cause of infectious death worldwide. Faced with increasing rates of drug resistance, the identification of genes that are required for the growth of this organism should provide new targets for the design of antimycobacterial agents. Here, we describe the use of transposon site hybridization (TraSH) to comprehensively identify the genes required by the causative agent, Mycobacterium tuberculosis , for optimal growth. These genes include those that can be assigned to essential pathways as well as many of unknown function. The genes important for the growth of M. tuberculosis are largely conserved in the degenerate genome of the leprosy bacillus, Mycobacterium leprae , indicating that non‐essential functions have been selectively lost since this bacterium diverged from other mycobacteria. In contrast, a surprisingly high proportion of these genes lack identifiable orthologues in other bacteria, suggesting that the minimal gene set required for survival varies greatly between organisms with different evolutionary histories.

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Crossref · 10.1046/j.1365-2958.2003.03425.x

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  • Loss of glycosylation in plants, fungi or prokaryotes can also lead to cell death.

    “While space does not allow a detailed discussion, loss of glycosylation in plants, fungi or prokaryotes can also lead to cell death.”

    From Biological roles of glycans (2017) · cites this paper as [435]

    The Discussion reports that genes involved in building the mycobacterial cell wall are required for growth, and Table 2 identifies required steps in rhamnose and mannose metabolism. This supports a related point about prokaryotes, but the paper does not show that loss of glycosylation causes cell death or address plants and fungi. Page numbers are unavailable in our copy. (LLM, conf=0.82)

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  • The F1Fo-ATP synthase is essential for optimal growth in M. tuberculosis and M. smegmatis.

    “The F1Fo-ATP synthase in M. tuberculosis and M. smegmatis has been shown to be essential for optimal growth (29, 103).”

    From Energetics of Respiration and Oxidative Phosphorylation in Mycobacteria (2014) · cites this paper as [29]

    The Abstract and Discussion describe a screen for genes required for optimal growth in M. tuberculosis, but the passages found do not identify F1Fo-ATP synthase as one of them. Searches for ATP synthase, atp genes, and M. smegmatis yielded no passage establishing the claimed growth requirement in either species. (LLM, conf=0.74)

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Authors
Sassetti, C. M., Boyd, D. H., & Rubin, E. J.
Affiliations
Harvard University (US)
Corresponding author
Rubin, Eric J.
Venue
Molecular Microbiology
Publisher
Wiley
Published
2003-03-25
Volume
48
Issue
1
Pages
77-84
ISSN
  • 0950-382X (ISSN-L)
  • 1365-2958
OpenAlex
W2128482141
Cited by
2,544
References
25
Citations by year
2026: 43 · 2025: 71 · 2024: 99 · 2023: 77 · 2022: 87 · 2021: 94 · 2020: 114 · 2019: 137 · 2018: 111 · 2017: 129 · 2016: 129 · 2015: 154 · 2014: 149 · 2013: 154 · 2012: 128
FWCI
45.74
Type
journal article
Language
en
Open access
Locations
  • Molecular Microbiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Damon Runyon Cancer Research Foundation
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (AI 48704, R01AI048704, R01AI051929, AI51929)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Health Sciences › Medicine › Epidemiology › Mycobacterium research and diagnosis
Keywords
Mycobacterium tuberculosis, Mycobacterium leprae, essential genes, bacterial growth, gene essentiality, drug resistance, gene loss, minimal gene set, orthologs
MeSH terms
DNA Transposable Elements, Genes, Bacterial, Mycobacterium leprae, Mycobacterium tuberculosis, Mutagenesis, Evolution, Molecular

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