TABLE 1.
Relevant genotypes and phenotypes of the strains used in these studies
| Strain | Relevant genotype | EMa detection of:
|
Detection of:
|
Host cell invasion | ||||
|---|---|---|---|---|---|---|---|---|
| Base | Needle | InvG | PrgH | PrgK | PrgI | |||
| SB905 | Wild type | + | + | + | + | + | + | + |
| SB906 | prgH | − | − | + | − | − | − | − |
| SB907 | prgK | − | − | + | − | − | − | − |
| SB1171 | invG | − | − | − | + | − | +c | − |
| SB1073 | prgI | + | − | + | + | + | − | − |
| SB1074 | prgJ | + | − | + | + | + | − | − |
| SB912 | invA | + | − | + | + | + | − | − |
| SB917 | invC | + | − | + | + | + | − | − |
| SB1174 | spaO | + | − | + | + | + | − | − |
| SB1202 | spaP | + | − | + | + | + | − | − |
| SB1175 | spaQ | + | − | + | + | + | − | − |
| SB1176 | spaR | + | − | + | + | + | − | − |
| SB1201 | spaS | + | − | + | + | + | − | − |
| SB1081 | orgA | + | − | + | + | + | − | − |
| SB1082 | orgB | + | − | + | + | + | − | − |
| SB1076 | invI | + | − | + | + | + | − | − |
| SB1077 | invJ | + | +b | + | + | + | + | − |
| SB1075 | invH | +c | +c | +c | +c | +c | +c | +c |
| SB1180 | iagB | + | + | + | + | + | + | + |
| SB1203 | iacP | + | + | + | + | + | + | + |
| SB1205 | invE | + | + | + | + | + | + | − |
| SB1210 | sipB | + | + | + | + | + | + | − |
| SB1211 | sipC | + | + | + | + | + | + | − |
| SB1212 | sipD | + | + | + | + | + | + | − |
a
EM, electron microscopy.
b
The needle substructures of the invJ mutant strain were abnormally long.
c
Reduced in comparison to the wild type.