| signaling receptor activity | GO:0038023 | 2.49 |
| calcium channel activity | GO:0005262 | 5.03 |
| cation binding | GO:0043169 | 1.4 |
| enzyme binding | GO:0019899 | 2.27 |
| ligand-gated ion channel activity | GO:0015276 | 4.8 |
| molecular transducer activity | GO:0060089 | 2.32 |
| protein kinase A binding | GO:0051018 | 6.02 |
| protein kinase A catalytic subunit binding | GO:0034236 | 7.03 |
| binding | GO:0005488 | 0.18 |
| signal transducer activity | GO:0004871 | 2.28 |
| cation channel activity | GO:0005261 | 4.04 |
| ion channel binding | GO:0044325 | 5.02 |
| divalent inorganic cation transmembrane transporter activity | GO:0072509 | 4.62 |
| sulfur compound binding | GO:1901681 | 4.32 |
| calcium ion transmembrane transporter activity | GO:0015085 | 4.89 |
| calcium-release channel activity | GO:0015278 | 6.97 |
| transmembrane transporter activity | GO:0022857 | 2.82 |
| ion binding | GO:0043167 | 1.36 |
| calcium ion binding | GO:0005509 | 3.17 |
| receptor activity | GO:0004872 | 2.32 |
| passive transmembrane transporter activity | GO:0022803 | 3.6 |
| metal ion transmembrane transporter activity | GO:0046873 | 3.71 |
| metal ion binding | GO:0046872 | 1.41 |
| identical protein binding | GO:0042802 | 2.63 |
| calmodulin binding | GO:0005516 | 4.55 |
| calcium-induced calcium release activity | GO:0048763 | 9.05 |
| cation transmembrane transporter activity | GO:0008324 | 3.32 |
| ryanodine-sensitive calcium-release channel activity | GO:0005219 | 8.35 |
| inorganic cation transmembrane transporter activity | GO:0022890 | 3.49 |
| transporter activity | GO:0005215 | 2.57 |
| ion channel activity | GO:0005216 | 3.71 |
| intracellular ligand-gated ion channel activity | GO:0005217 | 6.41 |
| protein kinase binding | GO:0019901 | 3.44 |
| kinase binding | GO:0019900 | 3.32 |
| protein self-association | GO:0043621 | 5.93 |
| substrate-specific transmembrane transporter activity | GO:0022891 | 2.9 |
| suramin binding | GO:0043924 | 9.74 |
| substrate-specific transporter activity | GO:0022892 | 2.72 |
| organic cyclic compound binding | GO:0097159 | 1.05 |
| ion transmembrane transporter activity | GO:0015075 | 3.04 |
| transmembrane signaling receptor activity | GO:0004888 | 2.57 |
| channel activity | GO:0015267 | 3.6 |
| gated channel activity | GO:0022836 | 3.96 |
| protein binding | GO:0005515 | 0.46 |
| ligand-gated channel activity | GO:0022834 | 4.8 |
| ligand-gated calcium channel activity | GO:0099604 | 6.97 |
| substrate-specific channel activity | GO:0022838 | 3.67 |
| transmembrane receptor activity | GO:0099600 | 2.53 |
| protein kinase A regulatory subunit binding | GO:0034237 | 6.97 |