| node1 | node2 | node1 accession | node2 accession | node1 annotation | node2 annotation | score |
| HCN1 | HCN2 | ENSMMUP00000080183 | ENSMMUP00000016774 | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | 0.975 |
| HCN1 | HCN3 | ENSMMUP00000080183 | ENSMMUP00000080021 | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | 0.949 |
| HCN1 | HCN4 | ENSMMUP00000080183 | ENSMMUP00000021762 | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | Hyperpolarization activated cyclic nucleotide gated potassium channel 4. | 0.973 |
| HCN1 | KCNE2 | ENSMMUP00000080183 | ENSMMUP00000076053 | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | Potassium voltage-gated channel subfamily E regulatory subunit 2. | 0.475 |
| HCN1 | PDE4A | ENSMMUP00000080183 | ENSMMUP00000031853 | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | Phosphodiesterase. | 0.508 |
| HCN2 | HCN1 | ENSMMUP00000016774 | ENSMMUP00000080183 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | 0.975 |
| HCN2 | HCN3 | ENSMMUP00000016774 | ENSMMUP00000080021 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | 0.953 |
| HCN2 | HCN4 | ENSMMUP00000016774 | ENSMMUP00000021762 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Hyperpolarization activated cyclic nucleotide gated potassium channel 4. | 0.901 |
| HCN2 | KCNAB2 | ENSMMUP00000016774 | ENSMMUP00000040648 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Potassium voltage-gated channel subfamily A regulatory beta subunit 2. | 0.450 |
| HCN2 | KCNE2 | ENSMMUP00000016774 | ENSMMUP00000076053 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Potassium voltage-gated channel subfamily E regulatory subunit 2. | 0.479 |
| HCN2 | KCNE5 | ENSMMUP00000016774 | ENSMMUP00000076318 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Potassium voltage-gated channel subfamily E regulatory subunit 5. | 0.403 |
| HCN2 | PDE4A | ENSMMUP00000016774 | ENSMMUP00000031853 | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | Phosphodiesterase. | 0.726 |
| HCN3 | HCN1 | ENSMMUP00000080021 | ENSMMUP00000080183 | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | 0.949 |
| HCN3 | HCN2 | ENSMMUP00000080021 | ENSMMUP00000016774 | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | 0.953 |
| HCN3 | HCN4 | ENSMMUP00000080021 | ENSMMUP00000021762 | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | Hyperpolarization activated cyclic nucleotide gated potassium channel 4. | 0.953 |
| HCN3 | KCNE2 | ENSMMUP00000080021 | ENSMMUP00000076053 | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | Potassium voltage-gated channel subfamily E regulatory subunit 2. | 0.444 |
| HCN3 | KCNE5 | ENSMMUP00000080021 | ENSMMUP00000076318 | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | Potassium voltage-gated channel subfamily E regulatory subunit 5. | 0.424 |
| HCN4 | HCN1 | ENSMMUP00000021762 | ENSMMUP00000080183 | Hyperpolarization activated cyclic nucleotide gated potassium channel 4. | Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 1. | 0.973 |
| HCN4 | HCN2 | ENSMMUP00000021762 | ENSMMUP00000016774 | Hyperpolarization activated cyclic nucleotide gated potassium channel 4. | Hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2. | 0.901 |
| HCN4 | HCN3 | ENSMMUP00000021762 | ENSMMUP00000080021 | Hyperpolarization activated cyclic nucleotide gated potassium channel 4. | Hyperpolarization activated cyclic nucleotide gated potassium channel 3. | 0.953 |
