Detailed information of TA system TA122480

Bioinformatically predicted

Overview

TA module

• Type: II
• Classification (family/domain): yafN-yafO (relBE)/YafO-YafN
• Location: 4407480..4408174
• Replicon: chromosome
• Accession: NZ_CP038408
• Organism: Escherichia coli O157:H7 strain 86-24

Toxin (Protein)

• Gene name: yafO
• Uniprot ID: C3TNX7
• Locus tag: E3169_RS22145
• Protein ID: WP_001263495.1
• Coordinates: 4407480..4407878 (-)
• Length: 133 a.a.

Antitoxin (Protein)

• Gene name: yafN
• Uniprot ID: S1FJN6
• Locus tag: E3169_RS22150
• Protein ID: WP_000554757.1
• Coordinates: 4407881..4408174 (-)
• Length: 98 a.a.

Genomic Context

Locus tag	Coordinates	Strand	Size (bp)	Protein ID	Product	Description
-	4403067..4403147	-	81	NuclAT_12	-	-
-	4403067..4403147	-	81	NuclAT_12	-	-
-	4403067..4403147	-	81	NuclAT_12	-	-
-	4403067..4403147	-	81	NuclAT_12	-	-
E3169_RS22120	4403743..4404201	-	459	WP_001291990.1	xanthine phosphoribosyltransferase	-
E3169_RS22125	4404462..4405919	+	1458	WP_001293009.1	cytosol nonspecific dipeptidase	-
E3169_RS22130	4405976..4406533	-	558	WP_023438539.1	peptide chain release factor H	-
E3169_RS22135	4406445..4406711	-	267	WP_001303804.1	hypothetical protein	-
E3169_RS22140	4407018..4407470	-	453	WP_001059871.1	GNAT family N-acetyltransferase	-
E3169_RS22145	4407480..4407878	-	399	WP_001263495.1	type II toxin-antitoxin system mRNA interferase toxin YafO	Toxin
E3169_RS22150	4407881..4408174	-	294	WP_000554757.1	type I toxin-antitoxin system antitoxin YafN	Antitoxin
E3169_RS22155	4408226..4409281	-	1056	WP_001226188.1	DNA polymerase IV	-
E3169_RS22160	4409352..4410137	-	786	WP_000207556.1	putative lateral flagellar export/assembly protein LafU	-
E3169_RS22165	4410082..4411821	+	1740	WP_001301901.1	flagellar biosynthesis protein FlhA	-
E3169_RS22170	4411966..4412463	-	498	Protein_4342	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

>T122480 WP_001263495.1 NZ_CP038408:c4407878-4407480 [Escherichia coli O157:H7]
MRVFKTKLIRLQLTAEELDALTADFISYKRDGVLPDIFGRDALYDDSFTWPLIKFERVAHIHLANVNNPFPPQLRQFSRT
NDESHLVYCQGAFDEQAWLLIAILKPEPHKLARDNNQMHKIGKMAEAFRMRF

Nucleotide

• Length: 399 bp

>T122480 NZ_CP038408:c4407878-4407480 [Escherichia coli O157:H7]
ATGCGGGTATTCAAAACAAAACTTATTCGCCTGCAACTTACAGCAGAGGAGCTTGATGCGTTAACGGCGGATTTTATTTC
CTATAAGCGTGACGGTGTTTTGCCAGATATATTTGGTCGCGATGCACTCTACGACGACTCGTTTACTTGGCCATTAATCA
AATTTGAGCGAGTTGCTCATATTCATCTGGCAAATGTGAATAATCCATTTCCGCCACAGTTGCGCCAATTCAGCAGAACG
AATGACGAATCGCATTTGGTATATTGTCAGGGTGCGTTTGATGAGCAAGCATGGTTGCTCATTGCCATTCTGAAACCTGA
ACCTCATAAACTGGCTCGAGATAACAACCAAATGCATAAAATTGGGAAAATGGCAGAAGCGTTTCGCATGCGTTTTTGA

Antitoxin

Protein

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

>AT122480 WP_000554757.1 NZ_CP038408:c4408174-4407881 [Escherichia coli O157:H7]
MHRILAEKSVNITELRKNPAKYFIDQPVAVLSNNRPAGYLLSASAFEALMDMLAEQEEKKPIKARFRPSAARLEEITRRA
EKYLNDMTDDDFNDFKE

Nucleotide

• Length: 294 bp

>AT122480 NZ_CP038408:c4408174-4407881 [Escherichia coli O157:H7]
ATGCATCGAATTCTCGCTGAAAAATCGGTCAATATCACTGAATTACGTAAAAACCCAGCTAAATACTTTATTGATCAACC
GGTTGCGGTTCTTTCTAATAATCGCCCCGCAGGATATCTCTTAAGTGCCAGCGCATTCGAAGCGTTAATGGACATGCTTG
CTGAACAAGAGGAGAAAAAGCCCATAAAGGCGCGCTTCCGTCCAAGTGCTGCAAGATTAGAGGAAATTACACGCCGAGCT
GAAAAATATCTTAATGATATGACGGATGATGATTTCAATGACTTTAAGGAATAA

Structures

Antitoxin

• AlphaFold DB: S1FJN6