4 component system: The ATP-binding Cassette (ABC) Superfamily
| Q97Q42 | Spermidine/putrescine import ATP-binding protein PotA |
|---|---|
| Q97Q43 | Spermidine/putrescine ABC transporter, permease protein |
| Q97Q44 | Spermidine/putrescine ABC transporter, permease protein |
| Q97Q45 | Spermidine/putrescine ABC transporter, spermidine/putrescine-binding protein |