Korean Journal of Microbiology

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Table. 1.

Table. 1.

Distribution of Type II TA systems in E. coli

This table describes distribution of the type II TA systems in three different strains of Escherichia coli; adherent-invasive E. coli (AIEC) strain NRG857c, uropathogenic E. coli (UPEC) strain CFT073, and non-pathogenic E. coli strain K-12. The data were analyzed by comparing toxin-antitoxin database (https://bioinfo-mml.sjtu.edu.cn/TADB2/index.php), a paper discussing UPEC TA systems (Norton and Mulvey, 2012), and a recent study about AIEC TA systems (Bustamante and Vidal, 2020). Toxin family names in the table were determined based on the conserved domains of the toxins and the presence or absence of each TA system was described as +/-. Out of total 24 TA systems, only five TA systems (yoeB/yefM, hipAB-1, yjjJ/hipB, yhaV/prlF, fic/yhfG) exist in all three E. coli strains.

Family name TA system name CFT073 NRG857c K-12
pasT pasTI + - -

ccdB ccdB-1 + + -

hipA hipAB-1 + + +
hipAB-2 - + -
yjjJ/hipB + + +

relE relEB-1 + + -
relEB-2 + - +
relEB-3 + - +
relEB-4 + - +

parE parED-1 + + -
parED-2 + + -
parED-3 + + -
higBA + - -
yoeB/yefM + + +

yhaV yhaV/prlF(=sohA) + + +

fic fic/yhfG + + +

yafO yafO-1 - + +

mazE mazEF-1 - + -
mazEF-2 - + +
mazEF-3 - - +

hha hha/ybaJ + - -

rnlB rnlB/rnlA - - +

mqsR mqsR/ygiT - - +

hicA hicA/hicB - - +
Korean J. Microbiol. 2021;57:1-11 https://doi.org/10.7845/kjm.2021.1009
© 2021 Korean J. Microbiol.