Detailed information of TA system TA066719

Bioinformatically predicted

Overview

TA module

• Type: II
• Classification (family/domain): yafN-yafO (relBE)/YafO-YafN
• Location: 4406655..4407349
• Replicon: chromosome
• Accession: NZ_CP017444
• Organism: Escherichia coli O157:H7 strain 8368

Toxin (Protein)

• Gene name: yafO
• Uniprot ID: C3TNX7
• Locus tag: A4C39_RS22875
• Protein ID: WP_001263495.1
• Coordinates: 4406655..4407053 (-)
• Length: 133 a.a.

Antitoxin (Protein)

• Gene name: yafN
• Uniprot ID: S1FJN6
• Locus tag: A4C39_RS22880
• Protein ID: WP_000554757.1
• Coordinates: 4407056..4407349 (-)
• Length: 98 a.a.

Genomic Context

Locus tag	Coordinates	Strand	Size (bp)	Protein ID	Product	Description
-	4402242..4402322	-	81	NuclAT_12	-	-
-	4402242..4402322	-	81	NuclAT_12	-	-
-	4402242..4402322	-	81	NuclAT_12	-	-
-	4402242..4402322	-	81	NuclAT_12	-	-
A4C39_RS22850	4402918..4403376	-	459	WP_001291990.1	xanthine phosphoribosyltransferase	-
A4C39_RS22855	4403637..4405094	+	1458	WP_001293009.1	cytosol nonspecific dipeptidase	-
A4C39_RS22860	4405151..4405672	-	522	Protein_4344	peptide chain release factor H	-
A4C39_RS22865	4405671..4405874	-	204	Protein_4345	RNA ligase RtcB family protein	-
A4C39_RS22870	4406193..4406645	-	453	WP_001059871.1	GNAT family N-acetyltransferase	-
A4C39_RS22875	4406655..4407053	-	399	WP_001263495.1	type II toxin-antitoxin system mRNA interferase toxin YafO	Toxin
A4C39_RS22880	4407056..4407349	-	294	WP_000554757.1	type I toxin-antitoxin system antitoxin YafN	Antitoxin
A4C39_RS22885	4407401..4408456	-	1056	WP_001226188.1	DNA polymerase IV	-
A4C39_RS22890	4408527..4409312	-	786	WP_000207556.1	putative lateral flagellar export/assembly protein LafU	-
A4C39_RS22895	4409284..4410996	+	1713	Protein_4351	flagellar biosynthesis protein FlhA	-
A4C39_RS31550	4411141..4411638	-	498	Protein_4352	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

>T66719 WP_001263495.1 NZ_CP017444:c4407053-4406655 [Escherichia coli O157:H7]
MRVFKTKLIRLQLTAEELDALTADFISYKRDGVLPDIFGRDALYDDSFTWPLIKFERVAHIHLANVNNPFPPQLRQFSRT
NDESHLVYCQGAFDEQAWLLIAILKPEPHKLARDNNQMHKIGKMAEAFRMRF

Nucleotide

• Length: 399 bp

>T66719 NZ_CP017444:c4407053-4406655 [Escherichia coli O157:H7]
ATGCGGGTATTCAAAACAAAACTTATTCGCCTGCAACTTACAGCAGAGGAGCTTGATGCGTTAACGGCGGATTTTATTTC
CTATAAGCGTGACGGTGTTTTGCCAGATATATTTGGTCGCGATGCACTCTACGACGACTCGTTTACTTGGCCATTAATCA
AATTTGAGCGAGTTGCTCATATTCATCTGGCAAATGTGAATAATCCATTTCCGCCACAGTTGCGCCAATTCAGCAGAACG
AATGACGAATCGCATTTGGTATATTGTCAGGGTGCGTTTGATGAGCAAGCATGGTTGCTCATTGCCATTCTGAAACCTGA
ACCTCATAAACTGGCTCGAGATAACAACCAAATGCATAAAATTGGGAAAATGGCAGAAGCGTTTCGCATGCGTTTTTGA

Antitoxin

Protein

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

>AT66719 WP_000554757.1 NZ_CP017444:c4407349-4407056 [Escherichia coli O157:H7]
MHRILAEKSVNITELRKNPAKYFIDQPVAVLSNNRPAGYLLSASAFEALMDMLAEQEEKKPIKARFRPSAARLEEITRRA
EKYLNDMTDDDFNDFKE

Nucleotide

• Length: 294 bp

>AT66719 NZ_CP017444:c4407349-4407056 [Escherichia coli O157:H7]
ATGCATCGAATTCTCGCTGAAAAATCGGTCAATATCACTGAATTACGTAAAAACCCAGCTAAATACTTTATTGATCAACC
GGTTGCGGTTCTTTCTAATAATCGCCCCGCAGGATATCTCTTAAGTGCCAGCGCATTCGAAGCGTTAATGGACATGCTTG
CTGAACAAGAGGAGAAAAAGCCCATAAAGGCGCGCTTCCGTCCAAGTGCTGCAAGATTAGAGGAAATTACACGCCGAGCT
GAAAAATATCTTAATGATATGACGGATGATGATTTCAATGACTTTAAGGAATAA

Structures

Antitoxin

• AlphaFold DB: S1FJN6