4 component system: The ATP-binding Cassette (ABC) Superfamily
| O51235 | Phosphate ABC transporter, permease protein PstA |
|---|---|
| O51236 | Phosphate import ATP-binding protein PstB |
| O51234 | Phosphate ABC transporter, permease protein PstC |
| O51233 | Phosphate ABC transporter, periplasmic phosphate-binding protein |