Draft genome sequence of Enterococcus faecium E86, a strain producing broad-spectrum antimicrobial peptides: Description of a novel bacteriocin immunity protein and a novel sequence type.
J Glob Antimicrob Resist, 2019/06;17:195-197.
Miceli de Farias F[1], Silva Francisco M[1], Nascimento de Sousa Santos I[1], Salustiano Marques-Bastos SL[1], Lemos Miguel MA[2], Mattos Albano R[3], de Freire Bastos MDC[4]
Affiliations
PMID: 31005734DOI: 10.1016/j.jgar.2019.04.004
Impact factor: 4.349
Abstract
objectives: The aim of this study was to report the draft genome sequence of the bacteriocinogenic strain Enterococcus faecium E86. Bacteriocins are prokaryotic peptides or proteins with antimicrobial activity. The genome information may contribute to the identification of enterocins produced by this strain that exhibit inhibitory activity against the foodborne pathogen Listeria monocytogenes and vancomycin-resistant enterococci (VRE) involved in human infections, among other bacterial genera and species.
methods: An Illumina MiSeq platform was used for genome sequencing. De novo assembly of 5 735 838 paired-end reads was done using the A5-miseq pipeline, yielding >300-fold average genome coverage. Genome annotation was performed by the RAST server, and mining of the bacteriocinogenic gene clusters was done using the BAGEL3 and antiSMASH v.4 platforms.
results: The total scaffold size was determined to be 2 689 107 bp, approximately 2.7 Mbp, featuring a G + C content of 38.1%. The genome contains 2858 coding sequences and 74 RNA genes. Genome analyses revealed the presence of: 30 genes involved in drug resistance; 2 bacteriocinogenic gene clusters (for enterocin P and enterocin TW21); EntiTW21, a novel bacteriocin immunity protein and a novel multilocus sequence type (ST1500).
conclusion: This work highlights the potential biotechnological application of this strain for the production of enterocin P, a bacteriocin that can be employed in the food industry as a biopreservative against L. monocytogenes and as an alternative to classical antibiotics against VRE.
Keywords: Enterocin; Enterococcus faecium; Illumina MiSeq; MLST; VRE; Vancomycin-resistant enterococci
MeSH terms
Anti-Bacterial Agents; Antimicrobial Cationic Peptides; Bacteriocins; Drug Resistance, Bacterial; Enterococcus faecium; Genome, Bacterial; Humans; Listeria monocytogenes; Microbial Sensitivity Tests; Multigene Family; Sequence Analysis, DNA; Vancomycin-Resistant Enterococci; Whole Genome Sequencing
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