Correlation Engine 2.0
Clear Search sequence regions

  • antitoxin (13)
  • ArsR (1)
  • brevis (7)
  • cell growth (1)
  • genomes (3)
  • lactic acid (1)
  • MazF (1)
  • plasmids (4)
  • RelE (2)
  • replicons (1)
  • toxin (11)
  • Sizes of these terms reflect their relevance to your search.

    Levilactobacillus brevis are present in various environments, such as beer, fermented foods, silage, and animal host. Like other lactic acid bacteria, L. brevis might adopt the viable but nonculturable (VBNC) state under unfavorable conditions. The toxin-antitoxin (TA) system, known to regulate cell growth in response to environmental stresses, is found to control the dynamic of the VBNC state. Here, we investigate the type II TA locus prevalence and compare the TA diversity in L. brevis genomes. Using the TAfinder software, we identified a total of 273 putative type II TA loci in 110 replicons of 21 completely sequenced genomes. Genome size does not appear to correlate with the amount of putative type II TA in L. brevis. Besides, type II TA loci are distributed differently among the chromosomes and plasmids. The most prevalent toxin domain is MazF-like in the chromosomes, and RelE/RelE-like in the plasmids; while for antitoxin, Xre-like and Phd-like domains are the most common in the chromosomes and plasmids, respectively. We also observed a unique GNAT-like/ArsR-like TA pair that presents only in the L. brevis chromosome. Detection of 273 putative type II TA loci in 21 complete genomes of Levilactobacillus brevis. © 2021. International Association of Scientists in the Interdisciplinary Areas.


    Ying-Xian Goh, Yang He, Hong-Yu Ou. Identification of Type II Toxin-Antitoxin Loci in Levilactobacillus brevis. Interdisciplinary sciences, computational life sciences. 2022 Mar;14(1):80-88

    Expand section icon Mesh Tags

    Expand section icon Substances

    PMID: 34664198

    View Full Text