4 component system: The ATP-binding Cassette (ABC) Superfamily
| D2BKA1 | Basic membrane lipoprotein |
|---|---|
| A2RKA7 | Purine/cytidine ABC transporter ATP-binding protein |
| A2RKA6 | Purine/cytidine ABC transporter permease protein |
| A2RKA5 | Purine/cytidine ABC transporter permease protein |