Table 2.

Distribution of truncated and intact clyA loci in the strains of the ECOR collection and additional extraintestinal E. coli isolates

Bacterial strain	Group 1)	Serotype	clyA locus present 2)	Deletion variant 3)
ECOR1-22, 25	A		+
ECOR23-24	A		Δ	I
ECOR26-30, 32–34, 45, 58, 67-72	B1		+
ECOR51-57, 59–60, 63-66	B2		Δ	I
ECOR61-62	B2		Δ	II
ECOR35-36, 38–41, 46-50	D		+
ECOR44	D		Δ	IV
ECOR31, 37, 42	E		+
ECOR43	E		Δ	IV
J96	UTI	O4:K6	Δ	I
536	UTI	O6:K15:H31	Δ	III
IH11128	UTI	O75:K5:H¯	Δ	I
AD110	UTI	O6:K2:H1:F7	Δ	I
DS-17	UTI	O6:K5	Δ	I
IA-2	UTI	O6:H¯	Δ	I
IHE3034	NBM	O18:K1:H7	Δ	I

¹⁾The ECOR subgroups are as defined previously [16].

UTI, urinary tract infection. NBM, newborn meningitis.

²⁾ + denotes that an intact clyA locus is present; Δ denotes that some deletion(s) had ocurred.

³⁾I-IV denotes the different deletion variants within the clyA locus as described in the text and in Figure 1.