Detailed information of TA system    

insolicoBioinformatically predicted

Overview

TA module


Type IV Classification (family/domain) cptAB/Cpta(toxin)
Location 3834771..3835425 Replicon chromosome
Accession NZ_CP008805
Organism Escherichia coli O157:H7 str. SS17

Toxin (Protein)


Gene name cptA Uniprot ID S1PAM6
Locus tag SS17_RS20035 Protein ID WP_000244781.1
Coordinates 3834771..3835178 (-) Length 136 a.a.

Antitoxin (Protein)


Gene name cptB Uniprot ID S1PPB1
Locus tag SS17_RS20040 Protein ID WP_000354046.1
Coordinates 3835159..3835425 (-) Length 89 a.a.

Genomic Context

Locus tag Coordinates Strand Size (bp) Protein ID Product Description
SS17_RS20015 3830728..3832461 - 1734 WP_000813185.1 single-stranded-DNA-specific exonuclease RecJ -
SS17_RS20020 3832467..3833177 - 711 WP_000715214.1 bifunctional protein-disulfide isomerase/oxidoreductase DsbC -
SS17_RS20025 3833202..3834098 - 897 WP_000806638.1 site-specific tyrosine recombinase XerD -
SS17_RS20030 3834210..3834731 + 522 WP_001055874.1 flavodoxin FldB -
SS17_RS20035 3834771..3835178 - 408 WP_000244781.1 protein YgfX Toxin
SS17_RS20040 3835159..3835425 - 267 WP_000354046.1 FAD assembly factor SdhE Antitoxin
SS17_RS20045 3835668..3836648 + 981 WP_000886053.1 tRNA-modifying protein YgfZ -
SS17_RS20050 3836725..3837384 - 660 WP_000250274.1 hemolysin III family protein -
SS17_RS20055 3837548..3837859 - 312 WP_001182957.1 N(4)-acetylcytidine aminohydrolase -
SS17_RS20060 3837904..3839337 + 1434 WP_001310226.1 6-phospho-beta-glucosidase BglA -

Associated MGEs

MGE
detail		 Similar
MGEs		 Relative
position		 MGE Type Cargo ARG Virulence gene Coordinates Length (bp)


Relative position:
(1) inside: TA loci is completely located inside the MGE;
(2) overlap: TA loci is partially overlapped with the MGE;
(3) flank: The TA loci is located in the 5 kb flanking regions of MGE.


Domains

Predicted by InterproScan

Toxin

Inner membrane protein YgfX

(3-131)

Antitoxin

Flavinator of succinate dehydrogenase

(7-79)


Sequences

Toxin        


Download         Length: 136 a.a.        Molecular weight: 16061.99 Da        Isoelectric Point: 11.5202

>T47563 WP_000244781.1 NZ_CP008805:c3835178-3834771 [Escherichia coli O157:H7 str. SS17]
VVLWQSDLRVSWRAQWLSLLIHGLVAAVILLMPWPLSYTPLWMVLLSLVVFDCVRSQRRINARQGEIRLLMDGRLRWQGQ
EWSIVKAPWMIKSGMMLRLRSDSGKRQHLWLAADSMDEAEWRDLRRILLQQETQR

Download         Length: 408 bp

>T47563 NZ_CP008805:c3835178-3834771 [Escherichia coli O157:H7 str. SS17]
GTGGTCCTGTGGCAATCTGATTTGCGCGTCTCCTGGCGCGCACAGTGGCTTTCCTTGCTGATTCATGGGCTGGTTGCCGC
TGTTATTTTACTCATGCCCTGGCCGCTCAGTTACACCCCGTTATGGATGGTGTTACTTTCGCTGGTGGTGTTTGATTGCG
TTCGCAGCCAGCGGCGTATTAATGCTCGCCAGGGGGAAATTCGCTTGTTGATGGACGGGCGTTTGCGTTGGCAAGGGCAG
GAGTGGAGCATCGTCAAAGCGCCGTGGATGATTAAGAGCGGCATGATGCTGCGTTTACGTTCTGATAGCGGTAAACGGCA
ACATTTATGGCTGGCAGCCGACAGCATGGACGAAGCCGAATGGCGGGATTTACGGCGGATTTTGTTGCAACAAGAGACGC
AAAGATAA

Antitoxin


Download         Length: 89 a.a.        Molecular weight: 10547.12 Da        Isoelectric Point: 5.1599

>AT47563 WP_000354046.1 NZ_CP008805:c3835425-3835159 [Escherichia coli O157:H7 str. SS17]
MDINNKARIHWACRRGMRELDISIMPFFEHEYDSLSDDEKRIFIRLLECDDPDLFNWLMNHGKPADAELEMMVRLIQTRN
RERGPVAI

Download         Length: 267 bp

>AT47563 NZ_CP008805:c3835425-3835159 [Escherichia coli O157:H7 str. SS17]
ATGGACATTAACAACAAAGCCCGCATTCATTGGGCATGCCGCCGTGGTATGCGCGAACTCGATATTTCAATCATGCCGTT
TTTCGAACATGAGTATGACAGCTTAAGCGATGACGAAAAACGCATCTTTATTCGTCTGCTGGAATGTGACGATCCCGATC
TGTTTAACTGGCTGATGAATCACGGTAAACCGGCCGATGCAGAACTGGAAATGATGGTCCGACTCATCCAGACACGGAAC
CGGGAACGTGGTCCTGTGGCAATCTGA

Similar Proteins

Only experimentally validated proteins are listed.

Protein Organism Identities (%) Coverage (%) Ha-value
Protein Organism Identities (%) Coverage (%) Ha-value

Structures

Toxin

Source ID Structure
AlphaFold DB S1PAM6

Antitoxin

Source ID Structure
PDB 6B58
PDB 1X6I
PDB 1X6J
PDB 6C12
AlphaFold DB A0A7U9QD57

References