| cytokine receptor binding | GO:0005126 | 4.14 |
| ubiquitin-like protein ligase binding | GO:0044389 | 4.15 |
| nucleic acid binding | GO:0003676 | 1.44 |
| activating transcription factor binding | GO:0033613 | 5.68 |
| transforming growth factor beta receptor binding | GO:0005160 | 5.81 |
| RNA polymerase II regulatory region DNA binding | GO:0001012 | 3.36 |
| enzyme binding | GO:0019899 | 2.27 |
| transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding | GO:0001077 | 4.31 |
| macromolecular complex binding | GO:0044877 | 2.61 |
| binding | GO:0005488 | 0.18 |
| signal transducer activity | GO:0004871 | 2.28 |
| DNA binding | GO:0003677 | 1.92 |
| RNA polymerase II core promoter proximal region sequence-specific DNA binding | GO:0000978 | 3.88 |
| heterocyclic compound binding | GO:1901363 | 1.06 |
| sequence-specific DNA binding | GO:0043565 | 2.79 |
| transforming growth factor beta receptor, cytoplasmic mediator activity | GO:0005072 | 7.44 |
| sequence-specific double-stranded DNA binding | GO:1990837 | 3.2 |
| receptor signaling protein activity | GO:0005057 | 4.76 |
| protein heterodimerization activity | GO:0046982 | 3.64 |
| ion binding | GO:0043167 | 1.36 |
| identical protein binding | GO:0042802 | 2.63 |
| R-SMAD binding | GO:0070412 | 6.65 |
| core promoter proximal region DNA binding | GO:0001159 | 3.82 |
| co-SMAD binding | GO:0070410 | 7.25 |
| I-SMAD binding | GO:0070411 | 7.34 |
| core promoter proximal region sequence-specific DNA binding | GO:0000987 | 3.83 |
| double-stranded DNA binding | GO:0003690 | 3.09 |
| metal ion binding | GO:0046872 | 1.41 |
| transcription factor activity, RNA polymerase II core promoter proximal region sequence-specific binding | GO:0000982 | 3.94 |
| RNA polymerase II transcription factor activity, sequence-specific DNA binding | GO:0000981 | 3.29 |
| protein homodimerization activity | GO:0042803 | 3.16 |
| cation binding | GO:0043169 | 1.4 |
| transcription factor binding | GO:0008134 | 3.46 |
| regulatory region nucleic acid binding | GO:0001067 | 3.03 |
| SMAD binding | GO:0046332 | 5.45 |
| phosphatase binding | GO:0019902 | 4.63 |
| enhancer binding | GO:0035326 | 5.21 |
| type I transforming growth factor beta receptor binding | GO:0034713 | 7.44 |
| protein dimerization activity | GO:0046983 | 2.72 |
| transcription regulatory region DNA binding | GO:0044212 | 3.03 |
| ubiquitin protein ligase binding | GO:0031625 | 4.17 |
| transforming growth factor beta receptor, pathway-specific cytoplasmic mediator activity | GO:0030618 | 8.13 |
| transcription factor activity, sequence-specific DNA binding | GO:0003700 | 2.65 |
| organic cyclic compound binding | GO:0097159 | 1.05 |
| transcriptional activator activity, RNA polymerase II transcription regulatory region sequence-specific binding | GO:0001228 | 3.98 |
| transcription regulatory region sequence-specific DNA binding | GO:0000976 | 3.24 |
| RNA polymerase II regulatory region sequence-specific DNA binding | GO:0000977 | 3.37 |
| protein binding | GO:0005515 | 0.46 |
| regulatory region DNA binding | GO:0000975 | 3.03 |
| receptor binding | GO:0005102 | 2.43 |
| chromatin binding | GO:0003682 | 3.64 |
| nucleic acid binding transcription factor activity | GO:0001071 | 2.65 |