Table 2.

Internalization of 8325-4 and its derivatives with altered surface proteins

StrainRelative internalizationa
8325-4100
DU58835.5 ± 0.7
DU5883(pFnBPA4)450.0 ± 0.4
DU587585.3 ± 5.4
DU588081.9 ± 7.1
  • a Expressed as percentage of internalization compared to parental control strain 8325-4. A standard invasion assay was performed as described in Materials and Methods, using an MOI of 10 for all strains.