Molecular investigation of the colicinogenic Escherichia coli strains that are capable of inhibiting E. coli O157:H7 in vitro

Table 3 Relation between Colicin genes and pathotypes of E. coli isolates, and the inhibitory effect of the colininogenic isolates on E. coli O157:H7

Colicin genes	Number of Isolates		Pathotypes						Inhibition of E. coli O157:H7
Colicin genes	Number of Isolates		ETEC	aEPEC	STEC	NTEC	EIEC	Without Vir Genes	Inhibition of E. coli O157:H7
Colicin Iab	D	25	22	0	0	0	0	3	–
Colicin Iab	H	11	0	0	0	0	0	11	–
Colicin E1	D	18	1	1	14	2	0	0	+
Colicin E1	H	5	0	0	0	0	0	5	+
Colicin V	D	15	9	0	0	0	1	5	+
Colicin V	H	5	0	0	0	0	1	4	+
Colicin 5, 10, K	D	3	0	2	1	0	0	0	+
Colicin 5, 10, K	H	5	0	0	0	0	0	5	+
Colicin YU	D	1	0	0	1	0	0	0	–
Colicin YU	H	6	0	0	0	0	0	6	+
Colicin EMix	D	0	0	0	0	0	0	0	–
Colicin EMix	H	3	0	0	0	0	0	3	+
Colicin ANS4	D	0	0	0	0	0	0	0	–
Colicin ANS4	H	2	0	0	0	0	0	2	+
Multiple Colicin genes	D	5	3	1	1	0	0	0	+
Multiple Colicin genes	H	6	0	0	0	0	0	6	+
Total	D	67	35 (52.23)	4 (5.97)	17 (25.37)	2 (2.98)	1 (1.49)	8 (11.9)
Total	H	43	0	0	0	0	1 (2.32)	42 (97.6)

Abbreviation: In this table: ETEC Entrotoxigenic E. coli, a EPEC atypical Entropathogenic E. coli, STEC Shiga Toxin producing E. coli, NTEC Necrotoxic E. coli, EIEC Entroinvasive E. coli; D: Diarrheic, H Healthy

ISSN: 1746-6148