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Willms IM, Grote M, Kocatürk M, et al. Novel Soil-Derived Beta-Lactam, Chloramphenicol, Fosfomycin and Trimethoprim Resistance Genes Revealed by Functional Metagenomics. Antibiotics (Basel). 2021;10(4)doi: 10.3390/antibiotics10040378.
Willms, I. M., Grote, M., Kocatürk, M., Singhoff, L., Kraft, A. A., Bolz, S. H., & Nacke, H. (2021). Novel Soil-Derived Beta-Lactam, Chloramphenicol, Fosfomycin and Trimethoprim Resistance Genes Revealed by Functional Metagenomics. Antibiotics (Basel, Switzerland), 10(4), . https://doi.org/10.3390/antibiotics10040378
Willms, Inka Marie, et al. "Novel Soil-Derived Beta-Lactam, Chloramphenicol, Fosfomycin and Trimethoprim Resistance Genes Revealed by Functional Metagenomics." Antibiotics (Basel, Switzerland) vol. 10,4 (2021). doi: https://doi.org/10.3390/antibiotics10040378
Willms IM, Grote M, Kocatürk M, Singhoff L, Kraft AA, Bolz SH, Nacke H. Novel Soil-Derived Beta-Lactam, Chloramphenicol, Fosfomycin and Trimethoprim Resistance Genes Revealed by Functional Metagenomics. Antibiotics (Basel). 2021 Apr 03;10(4). doi: 10.3390/antibiotics10040378. PMID: 33916668; PMCID: PMC8066302.
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Antibiotics (Basel). 2021 Apr 03;10(4). doi: 10.3390/antibiotics10040378.

Novel Soil-Derived Beta-Lactam, Chloramphenicol, Fosfomycin and Trimethoprim Resistance Genes Revealed by Functional Metagenomics.

Antibiotics (Basel, Switzerland)

Inka Marie Willms, Maja Grote, Melissa Kocatürk, Lukas Singhoff, Alina Andrea Kraft, Simon Henning Bolz, Heiko Nacke

Affiliations

  1. Department of Genomic and Applied Microbiology and Göttingen Genomics Laboratory, Institute of Microbiology and Genetics, Georg-August University of Göttingen, D-37077 Göttingen, Germany.

PMID: 33916668 PMCID: PMC8066302 DOI: 10.3390/antibiotics10040378

Abstract

Antibiotic resistance genes (ARGs) in soil are considered to represent one of the largest environmental resistomes on our planet. As these genes can potentially be disseminated among microorganisms via horizontal gene transfer (HGT) and in some cases are acquired by clinical pathogens, knowledge about their diversity, mobility and encoded resistance spectra gained increasing public attention. This knowledge offers opportunities with respect to improved risk prediction and development of strategies to tackle antibiotic resistance, and might help to direct the design of novel antibiotics, before further resistances reach hospital settings or the animal sector. Here, metagenomic libraries, which comprise genes of cultivated microorganisms, but, importantly, also those carried by the uncultured microbial majority, were screened for novel ARGs from forest and grassland soils. We detected three new beta-lactam, a so far unknown chloramphenicol, a novel fosfomycin, as well as three previously undiscovered trimethoprim resistance genes. These ARGs were derived from phylogenetically diverse soil bacteria and predicted to encode antibiotic inactivation, antibiotic efflux, or alternative variants of target enzymes. Moreover, deduced gene products show a minimum identity of ~21% to reference database entries and confer high-level resistance. This highlights the vast potential of functional metagenomics for the discovery of novel ARGs from soil ecosystems.

Keywords: antibiotic resistance genes; beta-lactam resistance; chloramphenicol resistance; fosfomycin resistance; functional metagenomics; soil; trimethoprim resistance

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