18 component system: The Type IV (Conjugal DNA-Protein Transfer or VirB) Secretory Pathway (IVSP) Family
| Q5G3L7 | PcfY |
|---|---|
| Q5G3N9 | PcfC |
| Q5G3N8 | PcfD |
| Q7X5P3 | PcfG |
| Q5G3N1 | PcfK |
| Q5G3N2 | PcfJ |
| Q5G3M0 | PcfV |
| Q5G3P0 | PcfB |
| Q5G3N6 | PcfF |
| Q5G3M7 | PcfO |
| Q5G3P1 | PcfA |
| Q5G3L8 | PcfX |
| Q5G3M4 | PcfR |
| Q5G3M1 | PcfU |
| Q5G3N0 | PcfL |
| Q5G3N4 | PcfH |
| Q5G3M3 | Single-stranded DNA-binding protein |
| Q5G3M2 | PcfT |