| Label | Id | |
|---|---|---|
| purine base transmembrane transporter activity | http://purl.obolibrary.org/obo/GO_0005345 | |
| purine nucleobase transmembrane transporter activity | http://purl.obolibrary.org/obo/GO_0005345 | |
| purine transmembrane transporter activity | http://purl.obolibrary.org/obo/GO_0005345 |
