Korean Journal of Microbiology

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Table. 2.

Table. 2.

Distribution of TA systems in uropathogenic E. coli strain CFT073

This table describes the TA systems of uropathogenic Escherichia coli (UPEC) strain CFT073. The data were analyzed by comparing toxin-antitoxin database (https://bioinfo-mml.sjtu.edu.cn/TADB2/index.php) and a paper discussing UPEC TA systems (Norton and Mulvey, 2012). Toxin family names in the table were determined based on the conserved domains of the toxins, and the numerical numbering of TA systems was given to distinguish the TA systems within the same toxin family name, which have distinct loci. For example, in the case of hipBA, it has two TA loci, toxins of which were designated as hipA-1 and hipA-2. Even though TA systems with a sequence similarity are expected to be the same family, individual function of each toxin has not been determined yet.

Type Family name TA system name TA locus number
Type I hok hok/sok 6
ldr ldr/rdl 2
ibs ibs/sib 4
shoB shoB/ohsC 1
dinQ dinQ 1
symE symE/symR 1

Type II pasT pasTI 1
ccdB ccdBA 1
hipA hipAB 2
yjjJ 1
relE relEB 4
parE parED 3
higB(=parE-1)/higA 1
yoeB/yefM 1
yhaV yhaV/sohA(=prlF) 1
fic fic/yhfG 1
hha hha/ybaJ 1

Type IV cptA cptA(=ygfX)/cptB 1

Type V ghoT ghoT/ghoS 1
ortT ortT(=ydcX)/- 1
Korean J. Microbiol. 2021;57:1-11 https://doi.org/10.7845/kjm.2021.1009
© 2021 Korean J. Microbiol.