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Table 1 Results of PCR and hybridization for EAF-encoded genes among typical EPEC strains

From: Genetic analysis of enteropathogenic Escherichia coli (EPEC) adherence factor (EAF) plasmid reveals a new deletion within the EAF probe sequence among O119 typical EPEC strains

Clonal group

Serotype

No. of strains

Source

Presence or absence of:

IS element upstream of per

Presence or absence of:

perBC-EAF PCR product

bfpA (probe)

bfpA (PCR)

bfpG (PCR)

trcP (probe)

per (probe)

perA (PCR)

EAF (PCR)

orf35–36 (probe)

orf61–62 (probe)

EPEC1

O55:H6, NM

13

Patients

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

EPEC1

O55:NM

1

Control

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

EPEC1

O86:NM, H34

2

Patients

+

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

EPEC2

O111:NM

5

Patients

+

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

EPEC2

O111:H2

4

Patients

+

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

EPEC1

O119:H6, NM

16

Patients

+

+

+

IS1(νξ)

+

+

+

2.2-kb

EPEC1

O119:H6

1

Patient

+

+

IS1(νξ)

+

+

2.2-kb

EPEC1

O119:H6, NM

5

Patients

+

+

+

IS1(νξ)

+

+

+

2.2-kb

EPEC1

O119:H6

2

Controls

+

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

EPEC1

O119:H6

1

Control

+

+

+

+

IS1(νξ)

+

+

+

3.9-kb

EPEC1

O127:H6, NM

3

Controls

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

EPEC1

O127:NM

1

Patient

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

Unknown

O2:H2, H45

2

Patients

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

Unknown

O101:H33

1

Control

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

Unknown

O145:HNT

1

Control

+

+

+

IS1(νξ)

+

+

+

2.2-kb

Unknown

O162:NM, H33

2

Patients

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

Unknown

O157:HND

2

Patients

+

+

+

IS1(νξ)

+

+

+

2.2-kb

Unknown

ONT:H45; HND

3

Patients

+

+

+

IS1(νξ)

+

+

+

+

3.9-kb

Unknown

ONT:HND

5

Patients

+

+

+

IS1(νξ)

+

+

+

2.2-kb

EPEC1

E2348/69 (O127:H6)

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

EPEC2

B171 (O111:NM)

+

+

+

+

IS1(νξ)

+

+

+

+

+

3.9-kb

  1. NM Nonmotile; ND Nondetermined; NT Nontypeable