Detailed information of TA system TA121278

Bioinformatically predicted

Overview

TA module

• Type: II
• Classification (family/domain): yafN-yafO (relBE)/YafO-YafN
• Location: 4453556..4454250
• Replicon: chromosome
• Accession: NZ_CP038305
• Organism: Escherichia coli O157:H7 strain SS NE 1040-1

Toxin (Protein)

• Gene name: yafO
• Uniprot ID: C3TNX7
• Locus tag: E4U78_RS22555
• Protein ID: WP_001263495.1
• Coordinates: 4453556..4453954 (-)
• Length: 133 a.a.

Antitoxin (Protein)

• Gene name: yafN
• Uniprot ID: S1FJN6
• Locus tag: E4U78_RS22560
• Protein ID: WP_000554757.1
• Coordinates: 4453957..4454250 (-)
• Length: 98 a.a.

Genomic Context

Locus tag	Coordinates	Strand	Size (bp)	Protein ID	Product	Description
-	4449143..4449223	-	81	NuclAT_11	-	-
-	4449143..4449223	-	81	NuclAT_11	-	-
-	4449143..4449223	-	81	NuclAT_11	-	-
-	4449143..4449223	-	81	NuclAT_11	-	-
E4U78_RS22530	4449819..4450277	-	459	WP_001291990.1	xanthine phosphoribosyltransferase	-
E4U78_RS22535	4450538..4451995	+	1458	WP_001293009.1	cytosol nonspecific dipeptidase	-
E4U78_RS22540	4452052..4452609	-	558	WP_023438539.1	peptide chain release factor H	-
E4U78_RS22545	4452521..4452787	-	267	WP_001303804.1	hypothetical protein	-
E4U78_RS22550	4453094..4453546	-	453	WP_001059871.1	GNAT family N-acetyltransferase	-
E4U78_RS22555	4453556..4453954	-	399	WP_001263495.1	type II toxin-antitoxin system mRNA interferase toxin YafO	Toxin
E4U78_RS22560	4453957..4454250	-	294	WP_000554757.1	type I toxin-antitoxin system antitoxin YafN	Antitoxin
E4U78_RS22565	4454302..4455357	-	1056	WP_001508862.1	DNA polymerase IV	-
E4U78_RS22570	4455428..4456213	-	786	WP_000207556.1	putative lateral flagellar export/assembly protein LafU	-
E4U78_RS22575	4456158..4457897	+	1740	WP_001301901.1	flagellar biosynthesis protein FlhA	-
E4U78_RS22580	4458042..4458539	-	498	Protein_4422	REP-associated tyrosine transposase RayT	-

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

• mRNA interferase toxin YafO (27-130)

Antitoxin

No domain identified.

Sequences

Toxin

Protein

• Length: 133 a.a.
• Molecular weight: 15473.86 Da
• Isoelectric Point: 8.0949

>T121278 WP_001263495.1 NZ_CP038305:c4453954-4453556 [Escherichia coli O157:H7]
MRVFKTKLIRLQLTAEELDALTADFISYKRDGVLPDIFGRDALYDDSFTWPLIKFERVAHIHLANVNNPFPPQLRQFSRT
NDESHLVYCQGAFDEQAWLLIAILKPEPHKLARDNNQMHKIGKMAEAFRMRF

Nucleotide

• Length: 399 bp

>T121278 NZ_CP038305:c4453954-4453556 [Escherichia coli O157:H7]
ATGCGGGTATTCAAAACAAAACTTATTCGCCTGCAACTTACAGCAGAGGAGCTTGATGCGTTAACGGCGGATTTTATTTC
CTATAAGCGTGACGGTGTTTTGCCAGATATATTTGGTCGCGATGCACTCTACGACGACTCGTTTACTTGGCCATTAATCA
AATTTGAGCGAGTTGCTCATATTCATCTGGCAAATGTGAATAATCCATTTCCGCCACAGTTGCGCCAATTCAGCAGAACG
AATGACGAATCGCATTTGGTATATTGTCAGGGTGCGTTTGATGAGCAAGCATGGTTGCTCATTGCCATTCTGAAACCTGA
ACCTCATAAACTGGCTCGAGATAACAACCAAATGCATAAAATTGGGAAAATGGCAGAAGCGTTTCGCATGCGTTTTTGA

Antitoxin

Protein

• Length: 98 a.a.
• Molecular weight: 11233.81 Da
• Isoelectric Point: 5.9050

>AT121278 WP_000554757.1 NZ_CP038305:c4454250-4453957 [Escherichia coli O157:H7]
MHRILAEKSVNITELRKNPAKYFIDQPVAVLSNNRPAGYLLSASAFEALMDMLAEQEEKKPIKARFRPSAARLEEITRRA
EKYLNDMTDDDFNDFKE

Nucleotide

• Length: 294 bp

>AT121278 NZ_CP038305:c4454250-4453957 [Escherichia coli O157:H7]
ATGCATCGAATTCTCGCTGAAAAATCGGTCAATATCACTGAATTACGTAAAAACCCAGCTAAATACTTTATTGATCAACC
GGTTGCGGTTCTTTCTAATAATCGCCCCGCAGGATATCTCTTAAGTGCCAGCGCATTCGAAGCGTTAATGGACATGCTTG
CTGAACAAGAGGAGAAAAAGCCCATAAAGGCGCGCTTCCGTCCAAGTGCTGCAAGATTAGAGGAAATTACACGCCGAGCT
GAAAAATATCTTAATGATATGACGGATGATGATTTCAATGACTTTAAGGAATAA

Structures

Antitoxin

• AlphaFold DB: S1FJN6