Detailed information of TA system TA176227

Bioinformatically predicted

Overview

TA module

• Type: II
• Classification (family/domain): ccdAB/CcdA(antitoxin)
• Location: 4710292..4710842
• Replicon: chromosome
• Accession: NZ_CP062755
• Organism: Escherichia coli O157:H7 strain Z903

Toxin (Protein)

• Gene name: ccdB
• Uniprot ID: D3H432
• Locus tag: ILQ39_RS23610
• Protein ID: WP_001160975.1
• Coordinates: 4710292..4710606 (-)
• Length: 105 a.a.

Antitoxin (Protein)

• Gene name: ccdA
• Uniprot ID: V0VEX8
• Locus tag: ILQ39_RS23615
• Protein ID: WP_000125566.1
• Coordinates: 4710609..4710842 (-)
• Length: 78 a.a.

Genomic Context

Locus tag	Coordinates	Strand	Size (bp)	Protein ID	Product	Description
ILQ39_RS23585	4705967..4707253	+	1287	WP_000800457.1	peptidylprolyl isomerase SurA	-
ILQ39_RS23590	4707253..4708242	+	990	WP_000241259.1	4-hydroxythreonine-4-phosphate dehydrogenase PdxA	-
ILQ39_RS23595	4708239..4709060	+	822	WP_001065380.1	16S rRNA (adenine(1518)-N(6)/adenine(1519)-N(6))- dimethyltransferase RsmA	-
ILQ39_RS23600	4709063..4709440	+	378	WP_000610901.1	Co2+/Mg2+ efflux protein ApaG	-
ILQ39_RS23605	4709447..4710295	+	849	WP_000257187.1	bis(5'-nucleosyl)-tetraphosphatase (symmetrical) ApaH	-
ILQ39_RS23610	4710292..4710606	-	315	WP_001160975.1	CcdB family protein	Toxin
ILQ39_RS23615	4710609..4710842	-	234	WP_000125566.1	type II toxin-antitoxin system CcdA family antitoxin	Antitoxin
ILQ39_RS23620	4710928..4711407	-	480	WP_000624372.1	type 3 dihydrofolate reductase	-
ILQ39_RS23625	4711599..4713461	-	1863	WP_000377184.1	glutathione-regulated potassium-efflux system protein KefC	-
ILQ39_RS23630	4713454..4713984	-	531	WP_000600700.1	glutathione-regulated potassium-efflux system oxidoreductase KefF	-
ILQ39_RS23635	4714092..4715423	-	1332	WP_001183177.1	MFS transporter	-
ILQ39_RS23640	4715481..4715768	-	288	WP_000203741.1	ferredoxin-like protein FixX	-

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

• Toxin CcdB (2-103)

Antitoxin

• Post-segregation antitoxin CcdA (8-77)

Sequences

Toxin

Protein

• Length: 105 a.a.
• Molecular weight: 11711.76 Da
• Isoelectric Point: 9.8517

>T176227 WP_001160975.1 NZ_CP062755:c4710606-4710292 [Escherichia coli O157:H7]
MQFTVYRSRSRNAAFPFVIDVTSDIIGVINRRIVIPLTPIERFSRIRPPERLNPILLLVDGKEYVLMTHETATVPVNALG
TKFCDASAHRTLIKGALDFMLDGI

Nucleotide

• Length: 315 bp

>T176227 NZ_CP082772:4476393-4476857 [Escherichia coli O2:H1]
ATGGATTTTCCACAAAGGGTTAATGGTTGGGCGCTATATGCTCATCCCTGTTTTCAGGAAACCTACGATGCTTTAGTTGC
CGAAGTCGAGGCATTAAAGGGAAAAGATCCTGAAAATTATCAGAGAAAAGCTGCCACAAAGTTATTGGCGGTGGTCCATA
AAGTGATTGAGGAGCATATCACGGTCAATCCATCATCACCGGCATTCCGTCATGGCAAGTCGTTAGGCTCTGGGAAAAAT
AAAGACTGGTCACGGGTAAAATTTGGCGCTGGTCGCTATCGTCTCTTCTTTCGTTACAGTGAAAAAGAGAAAGTCATCAT
TCTGGGATGGATGAACGATGAAAACACGCTGCGCACCTACGGTAAAAAAACAGATGCCTATACCGTATTCAGTAAAATGT
TAAAAAGAGGACATCCTCCTGCCGACTGGGAAAGCCTCACCCAAGAGACAGAAGAAAGCCATTGA

Antitoxin

Protein

• Length: 78 a.a.
• Molecular weight: 8530.53 Da
• Isoelectric Point: 5.8062

>AT176227 WP_000125566.1 NZ_CP062755:c4710842-4710609 [Escherichia coli O157:H7]
MTAKRTTQSVTVTVDRELVNRARDAGLNMSATLTVALNAELKKHAATRWREENAEAIAALNQLADETGCFSDEYRSF

Nucleotide

• Length: 234 bp

>AT176227 NZ_CP082772:4476058-4476393 [Escherichia coli O2:H1]
ATGCCCGCTAATGCTCGCTCTAACGCTGTACTGACCACTGAATCAAAGGTCACTATACGCGGACAAACAACTATCCCCGC
GCCAGTGCGTGAGGCCTTAAAACTGAAGCCTGGCCTGGACAGCATTCATTACGAAATTCTGCCTGGTGGGCAAGTATTTA
TGTGCCGACTGGGAGATGAACAGGAGGATCATACTATGAATGCATTTTTGCGTTTTCTGGATGCAGATATCCAGAACAAC
CCGCAAAAAACTCGTCCATTCGACATTCAACAAGGAAAGAAACTTGTCGCTGGCATGGACGTCAACATTGACGATGAGAT
TGGCGACGACGAATAA

Structures

Antitoxin

• AlphaFold DB: A0A7U9LTM9