| G-protein coupled receptor activity | GO:0004930 | 2.95 |
| signaling receptor activity | GO:0038023 | 2.49 |
| protein binding | GO:0005515 | 0.46 |
| molecular transducer activity | GO:0060089 | 2.32 |
| G-protein coupled adenosine receptor activity | GO:0001609 | 7.79 |
| enzyme binding | GO:0019899 | 2.27 |
| purinergic receptor activity | GO:0035586 | 6.52 |
| transmembrane signaling receptor activity | GO:0004888 | 2.57 |
| identical protein binding | GO:0042802 | 2.63 |
| receptor activity | GO:0004872 | 2.32 |
| signal transducer activity | GO:0004871 | 2.28 |
| transmembrane receptor activity | GO:0099600 | 2.53 |
| binding | GO:0005488 | 0.18 |