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Table 1 Phenotyping of E. coli urine isolates.

From: Synergy between type 1 fimbriae expression and C3 opsonisation increases internalisation of E. coli by human tubular epithelial cells

Strains

Internalisation rate (NHS/HIS)

Type1- fimbriae

P-fimbriae

CNF1

Serum resistance

α-Haemolysin

J96

25

P

P

P

P

P

Internalised

      

U1

9.2

P

P

P

P

P

U2

6.5

P

N

P

P

P

U3

14.3

P

N

P

P

N

U4

5.5

P

N

N

P

N

U5

5.1

P

N

N

P

N

U6

15.1

P

N

N

P

N

U7

23.5

P

N

N

P

N

Non-internalised

      

U8

2.1

P

N

P

P

P

U9

0.55

P

N

P

P

P

U10

0.83

N

P

P

P

P

U11

1.5

N

N

N

P

N

U12

1.2

N

N

N

P

N

U13

1.9

N

N

N

P

N

U14

3.25

N

N

N

P

N

U15

1.375

N

N

N

N

N

U16

0.47

N

N

N

N

N

  1. In 16 urine E. coli isolates, bacterial virulence factors (including type-1, P fimbriae, CNF1, serum resistance, and α-Haemolysin) were examined to determine their correlation to C3-dependent internalisation (P positive, N negative). All experiments were repeated at least three times.