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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
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
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.