| Rickettsia rickettsii str. Iowa | |||||
| # | T4SS name | Replicon | Accession | Location | Function |
| 1 | VirB  | chromosome | NC_010263 | 134119..151449; 255312..255671; 388855..396733; 1119068..1121500 | effector translocation (1 effectors) |
| This T4SS contains information on host-pathogen interaction. | |||||
|